/* ==========================================================================
   闪电研究院 · ShandianHub — Design System
   Liquid Specular Glass：暗色玻璃拟态 + 电光青 / 霓虹品红
   主题通过 html[data-theme="light"|"dark"] 切换
   ========================================================================== */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color .45s ease, color .45s ease;
}

h1, h2, h3, h4, h5, p, figure, blockquote, dl, dd { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img, svg, video { display: block; max-width: 100%; }
[hidden] { display: none !important; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
  border-radius: 6px;
}

::selection { background: color-mix(in srgb, var(--brand-cyan) 30%, transparent); color: var(--fg); }

/* 滚动条：细，低调 */
@media (pointer: fine) {
  * { scrollbar-width: thin; scrollbar-color: var(--line-2) transparent; }
  *::-webkit-scrollbar { width: 8px; height: 8px; }
  *::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 99px; }
  *::-webkit-scrollbar-track { background: transparent; }
}

/* ---------- 2. Design Tokens ---------- */
:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", "Microsoft YaHei",
    system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", ui-monospace, "Cascadia Mono",
    Menlo, Consolas, monospace;

  --container: 1280px;
  --edge: 32px;
  --nav-h: 60px;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-2xl: 28px;

  --brand-cyan: #4d8dff;
  --brand-magenta: #ff2e93;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* 默认暗色（设计稿基准） */
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0a0f;
  --bg-2: #0e0e14;
  --bg-3: #12121a;
  --panel: rgba(255, 255, 255, .035);
  --panel-2: rgba(255, 255, 255, .065);
  --panel-3: rgba(255, 255, 255, .10);
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .16);
  --fg: #e9e9f1;
  --fg-2: #9ca0b0;
  --fg-3: #6b7080;
  --accent: #d3e4ff;
  --accent-strong: #7fb0ff;
  --accent-2: #ff8cc0;
  --accent-3: #b79bff;
  --accent-4: #ff8cc0;
  --accent-ink: #04141a;
  --nav-bg: rgba(11, 11, 17, .66);
  --card-bg: rgba(255, 255, 255, .038);
  --card-bg-hover: rgba(255, 255, 255, .065);
  --shadow-1: 0 18px 44px -26px rgba(0, 0, 0, .9);
  --shadow-2: 0 32px 80px -40px rgba(0, 0, 0, .95);
  --glow-1: rgba(77, 141, 255, .18);
  --glow-2: rgba(255, 46, 147, .14);
  --glow-3: rgba(155, 123, 255, .26);
  --glow-4: rgba(255, 138, 96, .16);
  --glow-5: rgba(255, 90, 170, .18);
  --spot-1: rgba(77, 141, 255, .20);
  --spot-2: rgba(255, 46, 147, .17);
  --spot-3: rgba(255, 138, 96, .11);
  --grad-a: #eef5ff;
  --grad-b: #a8caff;
  --grad-c: #9b7bff;
  --grid-line: rgba(255, 255, 255, .028);
  --scrim: rgba(6, 6, 10, .72);
  --code-bg: rgba(0, 0, 0, .38);
}

/* 亮色：同一套色相，压暗以满足对比度 */
html[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f9ff;
  --bg-2: #ffffff;
  --bg-3: #eef0f4;
  --panel: rgba(255, 255, 255, .74);
  --panel-2: rgba(255, 255, 255, .92);
  --panel-3: rgba(255, 255, 255, 1);
  --line: rgba(16, 18, 28, .085);
  --line-2: rgba(16, 18, 28, .15);
  --fg: #0f1117;
  --fg-2: #525a6d;
  --fg-3: #7f8798;
  /* 亮色主题改用纯亮蓝作为品牌主色，避免青绿感 */
  --brand-cyan: #4d8dff;
  --brand-magenta: #e2227e;
  --accent: #1f6bff;
  --accent-strong: #2f7bff;
  --accent-2: #b9165a;
  --accent-3: #8b5cf6;
  --accent-4: #e8388a;
  --accent-ink: #ffffff;
  --nav-bg: rgba(255, 255, 255, .74);
  --card-bg: rgba(255, 255, 255, .78);
  --card-bg-hover: rgba(255, 255, 255, .96);
  --shadow-1: 0 16px 40px -28px rgba(15, 17, 23, .28);
  --shadow-2: 0 30px 70px -42px rgba(15, 17, 23, .35);
  --glow-1: rgba(90, 150, 255, .22);
  --glow-2: rgba(225, 3, 125, .12);
  --glow-3: rgba(140, 110, 255, .22);
  --glow-4: rgba(255, 150, 110, .20);
  --glow-5: rgba(255, 110, 180, .16);
  --spot-1: rgba(120, 170, 255, .17);
  --spot-2: rgba(206, 32, 126, .13);
  --spot-3: rgba(255, 150, 110, .13);
  --grad-a: #a8caff;
  --grad-b: #4f93ff;
  --grad-c: #7c5cf5;
  --grid-line: rgba(15, 17, 23, .035);
  --scrim: rgba(245, 246, 249, .75);
  --code-bg: rgba(15, 17, 23, .05);
}

/* ---------- 3. Typography ---------- */
.t-hero {
  font-size: clamp(2.5rem, 6.2vw, 4.25rem);
  line-height: 1.06;
  font-weight: 700;
  letter-spacing: -.035em;
}
.t-h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.25rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -.03em;
}
.t-h2 {
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.16;
  font-weight: 650;
  letter-spacing: -.025em;
}
.t-h3 {
  font-size: clamp(1.25rem, 2vw, 1.55rem);
  line-height: 1.3;
  font-weight: 650;
  letter-spacing: -.02em;
}
.t-h4 { font-size: 1.0625rem; line-height: 1.4; font-weight: 600; letter-spacing: -.01em; }
.t-lead { font-size: clamp(1rem, 1.35vw, 1.125rem); line-height: 1.75; color: var(--fg-2); }
.t-body { font-size: .9375rem; line-height: 1.75; color: var(--fg-2); }
.t-sm { font-size: .8125rem; line-height: 1.6; color: var(--fg-3); }
.t-xs { font-size: .75rem; line-height: 1.5; color: var(--fg-3); }

.t-mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
}
.t-metric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(2rem, 3.6vw, 2.75rem);
  line-height: 1;
  font-weight: 600;
  letter-spacing: -.03em;
  background: linear-gradient(150deg, var(--grad-a) 0%, var(--grad-b) 58%, var(--grad-c) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grad-text {
  background: linear-gradient(100deg, var(--grad-a) 0%, var(--grad-b) 32%, var(--accent-3) 64%, var(--brand-magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--edge);
}
.section { padding-block: clamp(44px, 4.6vw, 76px); position: relative; }
.section--tight { padding-block: clamp(30px, 3.4vw, 48px); }
.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; }
.gap-xs { gap: 6px; } .gap-sm { gap: 10px; } .gap-md { gap: 16px; } .gap-lg { gap: 24px; } .gap-xl { gap: 40px; }
.between { justify-content: space-between; }
.wrap { flex-wrap: wrap; }
.mt-sm { margin-top: 10px; } .mt-md { margin-top: 18px; } .mt-lg { margin-top: 28px; } .mt-xl { margin-top: 40px; }

.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

/* ---------- 5. Ambient Background ---------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-layer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 0%, transparent 70%);
}
.bg-layer::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(58% 38% at 12% 24%, var(--glow-3), transparent 70%),
    radial-gradient(52% 34% at 88% 46%, var(--glow-2), transparent 72%),
    radial-gradient(50% 32% at 20% 70%, var(--glow-1), transparent 72%),
    radial-gradient(46% 30% at 82% 90%, var(--glow-4), transparent 74%);
  opacity: .85;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  will-change: transform;
}
.orb--cyan {
  width: 46vw; height: 46vw; max-width: 680px; max-height: 680px;
  top: -14vw; left: 50%; transform: translateX(-50%);
  background: radial-gradient(circle, var(--glow-1), transparent 68%);
}
.orb--magenta {
  width: 34vw; height: 34vw; max-width: 520px; max-height: 520px;
  top: 32vh; right: -8vw;
  background: radial-gradient(circle, var(--glow-2), transparent 70%);
}
.orb--deep {
  width: 40vw; height: 40vw; max-width: 560px; max-height: 560px;
  bottom: -10vw; left: -10vw;
  background: radial-gradient(circle, var(--glow-1), transparent 72%);
  opacity: .55;
}
.orb--violet {
  width: 40vw; height: 40vw; max-width: 620px; max-height: 620px;
  top: 44vh; left: -12vw;
  background: radial-gradient(circle, var(--glow-3), transparent 70%);
}
.orb--coral {
  width: 32vw; height: 32vw; max-width: 500px; max-height: 500px;
  bottom: 16vh; right: -6vw;
  background: radial-gradient(circle, var(--glow-4), transparent 70%);
}
.orb--rose {
  width: 26vw; height: 26vw; max-width: 420px; max-height: 420px;
  top: 6vh; left: 6vw;
  background: radial-gradient(circle, var(--glow-5), transparent 72%);
}
/* 亮色下白底容易把光斑吃掉，整体提亮一档 */
html[data-theme="light"] .orb { opacity: 1.15; }

/* 光标光晕：三层彩色径向叠加，柔边大范围，不含光点 */
#spotlight {
  position: fixed;
  top: 0; left: 0;
  width: 900px; height: 900px;
  margin: -450px 0 0 -450px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  background:
    radial-gradient(circle at 40% 42%, var(--spot-1) 0%, transparent 52%),
    radial-gradient(circle at 64% 58%, var(--spot-2) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, var(--spot-3) 0%, transparent 68%);
  filter: blur(14px);
  mix-blend-mode: screen;
  transition: opacity .6s ease;
  will-change: transform;
}
#spotlight.is-on { opacity: 1; }
html[data-theme="light"] #spotlight { mix-blend-mode: normal; }

@media (hover: none), (pointer: coarse) {
  #spotlight { display: none; }
}

/* ---------- 6. Navigation ---------- */
.skip-link {
  position: absolute;
  left: 16px; top: -60px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--accent-strong);
  color: var(--accent-ink);
  font-weight: 600;
  transition: top .2s ease;
}
.skip-link:focus { top: 12px; }

.nav {
  position: fixed;
  inset: 12px 0 auto;
  z-index: 100;
  padding-inline: var(--edge);
}
.nav__inner {
  position: relative;
  max-width: var(--container);
  margin-inline: auto;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px 0 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--nav-bg);
  backdrop-filter: blur(22px) saturate(180%);
  -webkit-backdrop-filter: blur(22px) saturate(180%);
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255, 255, 255, .07);
  transition: background-color .3s ease, border-color .3s ease, box-shadow .3s ease, height .3s ease;
}
.nav.is-scrolled .nav__inner {
  height: 54px;
  background: var(--panel-2);
  border-color: var(--line-2);
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .08);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding: 4px 6px 4px 2px;
  border-radius: 12px;
}
.nav__logo {
  width: 26px; height: 26px;
  color: var(--accent-strong);
  filter: drop-shadow(0 0 8px color-mix(in srgb, var(--brand-cyan) 45%, transparent));
  transition: transform .4s var(--ease-out), filter .3s ease;
}
.nav__brand:hover .nav__logo { transform: translateY(-1px) scale(1.06); }
.nav__wordmark {
  font-size: .9375rem;
  font-weight: 650;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.nav__brand-sub {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .16em;
  color: var(--fg-3);
  text-transform: uppercase;
  display: block;
  line-height: 1;
  margin-top: 3px;
  white-space: nowrap;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline: auto;
}
.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  border-radius: 9px;
  font-size: .875rem;
  color: var(--fg-2);
  white-space: nowrap;
  transition: color .2s ease, background-color .2s ease;
}
.nav__link:hover { color: var(--fg); background: var(--panel-2); }
.nav__link[aria-current="page"] {
  color: var(--fg);
  font-weight: 600;
  background: var(--panel-2);
  box-shadow: inset 0 0 0 1px var(--line);
}
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 3px;
  width: 14px; height: 2px;
  transform: translateX(-50%);
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-magenta));
}

.nav__actions { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  color: var(--fg-2);
  border: 1px solid transparent;
  transition: color .2s, background-color .2s, border-color .2s, transform .2s;
}
.icon-btn:hover {
  color: var(--fg);
  background: var(--panel-2);
  border-color: var(--line);
}
.icon-btn:active { transform: scale(.94); }
.icon-btn svg { width: 18px; height: 18px; }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 2px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
}
.lang-toggle__opt {
  min-width: 34px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--fg-3);
  transition: color .2s, background-color .2s, box-shadow .2s;
}
.lang-toggle__opt:hover { color: var(--fg); }
.lang-toggle__opt[aria-pressed="true"] {
  color: var(--accent-ink);
  background: var(--accent-strong);
  box-shadow: 0 0 12px color-mix(in srgb, var(--brand-cyan) 40%, transparent);
}

.nav__burger { display: none; }

/* 主题切换图标（显示规则见文件末尾“细节修正”） */
.icon-sun, .icon-moon { transition: opacity .3s ease, transform .4s var(--ease-out); }

/* ---------- 7. Mobile drawer & tabs ---------- */
.drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 110;
  background: var(--scrim);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }

.drawer {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 120;
  width: min(86vw, 340px);
  display: flex;
  flex-direction: column;
  padding: 20px 20px calc(20px + env(safe-area-inset-bottom));
  background: var(--panel-2);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-left: 1px solid var(--line-2);
  box-shadow: -30px 0 80px -20px rgba(0, 0, 0, .6);
  transform: translateX(102%);
  transition: transform .38s var(--ease-out);
  overflow-y: auto;
}
.drawer.is-open { transform: none; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.drawer__title { font-family: var(--font-mono); font-size: .625rem; letter-spacing: .18em; color: var(--fg-3); text-transform: uppercase; }
.drawer__list { display: flex; flex-direction: column; gap: 2px; }
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 46px;
  padding: 0 12px;
  border-radius: 12px;
  color: var(--fg-2);
  font-size: .9375rem;
  transition: background-color .2s, color .2s;
}
.drawer__link:hover { background: var(--panel-2); color: var(--fg); }
.drawer__link[aria-current="page"] { color: var(--accent); background: var(--panel-2); font-weight: 600; }
.drawer__link svg { width: 16px; height: 16px; opacity: .5; }
.drawer__foot { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-direction: column; gap: 12px; }

/* ---------- 8. Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: -.005em;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: transform .25s var(--ease), box-shadow .3s ease, background-color .25s ease, color .25s ease, border-color .25s ease;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.btn:active { transform: scale(.985); }

.btn--primary {
  color: var(--accent-ink);
  background: linear-gradient(135deg, #d9e9ff 0%, #a3c8ff 40%, #7fb0ff 72%, #4d8dff 100%);
  box-shadow: 0 10px 30px -12px color-mix(in srgb, var(--brand-cyan) 55%, transparent),
              inset 0 1px 0 rgba(255, 255, 255, .45);
}
html[data-theme="light"] .btn--primary {
  background: linear-gradient(135deg, #96c4ff 0%, #4f93ff 34%, #2f7bff 70%, #1f6bff 100%);
  color: #fff;
  box-shadow: 0 12px 26px -14px rgba(20, 95, 220, .45), inset 0 1px 0 rgba(255, 255, 255, .28);
}
.btn--primary:hover {
  box-shadow: 0 16px 42px -14px color-mix(in srgb, var(--brand-cyan) 72%, transparent),
              inset 0 1px 0 rgba(255, 255, 255, .55);
  transform: translateY(-1px);
}
.btn--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .7s var(--ease-out);
}
.btn--primary:hover::after { transform: translateX(120%); }

.btn--glass {
  color: var(--fg);
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .08);
}
.btn--glass:hover {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--brand-cyan) 45%, transparent);
  background: color-mix(in srgb, var(--brand-cyan) 8%, var(--panel-2));
  box-shadow: inset 0 0 20px color-mix(in srgb, var(--brand-cyan) 12%, transparent);
}

.btn--ghost { color: var(--fg-2); background: transparent; }
.btn--ghost:hover { color: var(--accent); background: var(--panel); }

.btn--sm { height: 38px; padding: 0 16px; font-size: .8125rem; border-radius: 11px; }
.btn--lg { height: 52px; padding: 0 28px; font-size: 1rem; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .45; cursor: not-allowed; box-shadow: none; transform: none; }

/* ---------- 9. Chips / Badges / Eyebrow ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg-2);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  white-space: nowrap;
  transition: color .2s, background-color .2s, border-color .2s, box-shadow .2s;
}
button.chip:hover { color: var(--fg); background: var(--panel-2); border-color: var(--line-2); }
.chip[aria-pressed="true"], .chip.is-active {
  color: var(--accent-ink);
  background: var(--accent-strong);
  border-color: transparent;
  box-shadow: 0 0 16px -2px color-mix(in srgb, var(--brand-cyan) 45%, transparent);
}
.chip__count { opacity: .65; font-variant-numeric: tabular-nums; }
.chip--lg { height: 36px; padding: 0 16px; font-size: .75rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .625rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--brand-cyan) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-cyan) 22%, transparent);
}
.badge--magenta {
  color: var(--accent-2);
  background: color-mix(in srgb, var(--brand-magenta) 12%, transparent);
  border-color: color-mix(in srgb, var(--brand-magenta) 24%, transparent);
}
.badge--music {
  color: var(--accent-3);
  background: color-mix(in srgb, var(--accent-3) 13%, transparent);
  border-color: color-mix(in srgb, var(--accent-3) 26%, transparent);
}
.badge--doc {
  color: var(--accent-4);
  background: color-mix(in srgb, var(--accent-4) 13%, transparent);
  border-color: color-mix(in srgb, var(--accent-4) 26%, transparent);
}
.badge--tool {
  color: #b79bff;
  background: color-mix(in srgb, #b79bff 14%, transparent);
  border-color: color-mix(in srgb, #b79bff 30%, transparent);
}
.badge--muted { color: var(--fg-3); background: var(--panel-2); border-color: var(--line); }
.badge--dot::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .6875rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 2px;
  background: linear-gradient(135deg, var(--brand-cyan) 0%, var(--accent-3) 60%, var(--accent-2) 100%);
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent-3) 60%, transparent);
}

/* ---------- 10. Glass Card ---------- */
.card {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--card-bg);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255, 255, 255, .05);
  overflow: hidden;
  transition: transform .35s var(--ease-out), border-color .3s ease, background-color .3s ease, box-shadow .35s ease;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .22), transparent);
  opacity: .7;
  pointer-events: none;
}
.card--pad { padding: 24px; }
.card--hover:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--brand-cyan) 30%, var(--line));
  background: var(--card-bg-hover);
  box-shadow: var(--shadow-2), inset 0 0 24px color-mix(in srgb, var(--brand-cyan) 7%, transparent);
}
.card--flat { backdrop-filter: none; background: var(--panel); }

/* ---------- 11. Section head ---------- */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: clamp(24px, 3vw, 36px);
}
.section-head__main { display: flex; flex-direction: column; gap: 10px; max-width: 640px; }
.section-head__desc { font-size: .9375rem; color: var(--fg-2); max-width: 520px; }

/* ---------- 12. Hero (home) ---------- */
.hero {
  position: relative;
  min-height: min(88dvh, 780px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-h) + 40px);
  padding-bottom: 56px;
  z-index: 2;
}
.hero__inner { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 20px; }
.hero__title { margin-top: 4px; }
.hero__sub { font-size: clamp(1rem, 1.5vw, 1.1875rem); color: var(--fg); font-weight: 500; letter-spacing: -.01em; }
.hero__desc { max-width: 620px; font-size: .9375rem; line-height: 1.8; color: var(--fg-2); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 8px; }
.hero__scroll {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  margin-top: clamp(30px, 6vh, 56px);
  color: var(--fg-3);
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.hero__scroll span:first-child {
  display: grid; place-items: center;
  width: 30px; height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  animation: float-y 2.6s var(--ease) infinite;
}
.hero__scroll svg { width: 16px; height: 16px; color: var(--accent); }
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* 页面头（内页） */
.page-hero {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-h) + 56px);
  padding-bottom: 36px;
}
.page-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 32px;
}
.page-hero__title {
  margin-top: 12px;
  background: linear-gradient(100deg, var(--grad-b) 0%, var(--accent-3) 55%, var(--brand-magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-hero__desc { margin-top: 12px; max-width: 620px; font-size: .9375rem; color: var(--fg-2); line-height: 1.8; }
.page-hero__aside { display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.page-hero__aside .search { width: 400px; max-width: 100%; }

/* ---------- 13. Stats bar ---------- */
.stats {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-radius: var(--radius-xl);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(24px) saturate(170%);
  -webkit-backdrop-filter: blur(24px) saturate(170%);
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .06);
  overflow: hidden;
}
.stats__item {
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 1px solid var(--line);
}
.stats__item:first-child { border-left: 0; }
.stats__value { display: flex; align-items: baseline; gap: 4px; }
.stats__item:nth-child(1) .t-metric { background-image: linear-gradient(150deg, #bcd7ff 0%, #4f93ff 60%, #2f7bff 100%); }
.stats__item:nth-child(2) .t-metric { background-image: linear-gradient(150deg, #c8d2ff 0%, #8195ff 58%, #5b6ef0 100%); }
.stats__item:nth-child(3) .t-metric { background-image: linear-gradient(150deg, #e2d6ff 0%, #b79bff 58%, #8b5cf6 100%); }
.stats__item:nth-child(4) .t-metric { background-image: linear-gradient(150deg, #ffc9df 0%, #ff8cc0 58%, #ff5aa8 100%); }
.stats__unit { font-family: var(--font-mono); font-size: 1rem; color: var(--accent); font-weight: 500; }
.stats__label { font-size: .875rem; font-weight: 600; color: var(--fg); }
.stats__desc { font-size: .75rem; color: var(--fg-3); }

/* ---------- 14. Product cards ---------- */
.product {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  padding: 24px;
  min-height: 100%;
}
.product__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.product__icon {
  display: grid;
  place-items: center;
  width: 58px; height: 58px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, color-mix(in srgb, var(--brand-cyan) 16%, transparent), transparent 70%);
  color: var(--accent);
  transition: transform .4s var(--ease-out), box-shadow .4s ease;
}
.product__icon svg { width: 26px; height: 26px; }
.card--hover:hover .product__icon {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: 0 0 24px -6px color-mix(in srgb, var(--brand-cyan) 50%, transparent);
}
.product__icon--magenta {
  background: linear-gradient(150deg, color-mix(in srgb, var(--brand-magenta) 16%, transparent), transparent 70%);
  color: var(--accent-2);
}
.product__icon--muted { color: var(--fg-3); background: var(--panel-2); }
.product__name { margin-top: 18px; }
.product__en { font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .08em; color: var(--fg-3); margin-top: 6px; text-transform: uppercase; }
.product__desc { margin-top: 12px; font-size: .875rem; line-height: 1.75; color: var(--fg-2); }
.product__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.product__tags .chip { height: 26px; font-size: .625rem; color: var(--fg-2); }
.product__foot { display: flex; flex-direction: column; gap: 8px; margin-top: 20px; }
.product__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: .75rem;
  color: var(--fg-3);
  padding: 6px 0;
  transition: color .2s;
}
.product__link:hover { color: var(--accent); }
.product__link svg { width: 13px; height: 13px; }

.progress {
  margin-top: 18px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--panel);
  border: 1px solid var(--line);
}
.progress__meta {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: .625rem;
  letter-spacing: .06em; color: var(--fg-3);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.progress__track { height: 5px; border-radius: 99px; background: var(--panel-3); overflow: hidden; }
.progress__bar {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--brand-cyan), var(--brand-magenta));
  box-shadow: 0 0 12px color-mix(in srgb, var(--brand-cyan) 55%, transparent);
  transition: width 1.2s var(--ease-out);
}

/* ---------- 15. Feature cards ---------- */
.feature { padding: 26px; display: flex; flex-direction: column; gap: 14px; }
.feature__icon {
  display: grid; place-items: center;
  width: 46px; height: 46px;
  border-radius: 13px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--accent);
}
.feature__icon svg { width: 22px; height: 22px; }

/* 三张能力卡各取一个色相，避免整段只有一个蓝 */
.grid--3 > .feature:nth-child(1) .feature__icon {
  color: var(--accent-strong);
  background: color-mix(in srgb, var(--brand-cyan) 10%, var(--panel-2));
  border-color: color-mix(in srgb, var(--brand-cyan) 24%, transparent);
}
.grid--3 > .feature:nth-child(2) .feature__icon {
  color: var(--accent-3);
  background: color-mix(in srgb, var(--accent-3) 11%, var(--panel-2));
  border-color: color-mix(in srgb, var(--accent-3) 26%, transparent);
}
.grid--3 > .feature:nth-child(3) .feature__icon {
  color: var(--accent-4);
  background: color-mix(in srgb, var(--accent-4) 11%, var(--panel-2));
  border-color: color-mix(in srgb, var(--accent-4) 26%, transparent);
}
.grid--3 > .feature:nth-child(2) .feature__foot { color: var(--accent-3); }
.grid--3 > .feature:nth-child(3) .feature__foot { color: var(--accent-4); }
.feature__title { font-size: 1.0625rem; font-weight: 650; letter-spacing: -.01em; }
.feature__desc { font-size: .875rem; line-height: 1.75; color: var(--fg-2); }
.feature__foot {
  display: flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: .625rem;
  letter-spacing: .08em; color: var(--accent);
  text-transform: uppercase;
  margin-top: auto; padding-top: 4px;
}
.feature__foot svg { width: 14px; height: 14px; }

/* ---------- 16. News / Dispatches ---------- */
.news { display: grid; grid-template-columns: 7fr 5fr; gap: 20px; align-items: stretch; }
.news__list { display: flex; flex-direction: column; gap: 10px; }
.news__item {
  display: flex;
  gap: 18px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  background: var(--panel);
  transition: background-color .25s, border-color .25s, transform .25s;
}
.news__item:hover {
  background: var(--panel-2);
  border-color: color-mix(in srgb, var(--brand-cyan) 22%, var(--line));
  transform: translateX(3px);
}
.news__date { min-width: 96px; display: flex; flex-direction: column; gap: 2px; }
.news__date span:first-child { font-family: var(--font-mono); font-size: .75rem; color: var(--accent); font-variant-numeric: tabular-nums; }
.news__date span:last-child { font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .1em; color: var(--fg-3); text-transform: uppercase; }
.news__body { flex: 1; min-width: 0; }
.news__title { font-size: .9375rem; font-weight: 600; letter-spacing: -.005em; transition: color .2s; }
.news__item:hover .news__title { color: var(--accent); }
.news__desc { margin-top: 4px; font-size: .8125rem; line-height: 1.65; color: var(--fg-3); overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.news__arrow { align-self: center; color: var(--fg-3); transition: transform .25s, color .25s; flex-shrink: 0; }
.news__item:hover .news__arrow { color: var(--accent); transform: translateX(3px); }
.news__arrow svg { width: 17px; height: 17px; }

.news__feature {
  position: relative;
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}
.news__cover { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.news__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.news__feature:hover .news__cover img { transform: scale(1.04); }
.news__cover::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, var(--bg) 2%, color-mix(in srgb, var(--bg) 40%, transparent) 45%, transparent 78%);
}
.news__cover-badge { position: absolute; top: 12px; left: 12px; z-index: 2; }
.news__feature-body { padding: 4px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }

/* ---------- 17. Content matrix (phone) ---------- */
.matrix { display: grid; grid-template-columns: 5fr 7fr; gap: 48px; align-items: center; }
.phone {
  position: relative;
  width: min(280px, 78vw);
  margin-inline: auto;
  aspect-ratio: 280 / 566;
  border-radius: 40px;
  padding: 10px;
  background: linear-gradient(160deg, color-mix(in srgb, var(--fg) 18%, transparent), color-mix(in srgb, var(--fg) 6%, transparent));
  box-shadow: var(--shadow-2), 0 0 60px -20px color-mix(in srgb, var(--brand-cyan) 35%, transparent);
  border: 1px solid var(--line-2);
}
.phone__screen {
  position: relative;
  height: 100%;
  border-radius: 31px;
  overflow: hidden;
  background: var(--bg-2);
  display: flex;
  flex-direction: column;
}
.phone__island {
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 78px; height: 20px;
  border-radius: 99px;
  background: #05050a;
  z-index: 3;
}
.phone__status {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 16px 4px;
  font-family: var(--font-mono); font-size: .5625rem; color: var(--fg-2);
}
.phone__app { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.phone__poster { position: relative; aspect-ratio: 3 / 4.1; overflow: hidden; }
.phone__poster img { width: 100%; height: 100%; object-fit: cover; }
.phone__poster::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, var(--bg-2) 0%, transparent 45%);
}
.phone__poster-tag {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  font-family: var(--font-mono); font-size: .5rem; letter-spacing: .1em;
  padding: 3px 7px; border-radius: 99px;
  background: rgba(0, 0, 0, .55); color: #dffbff; backdrop-filter: blur(6px);
}
.phone__title { padding: 0 14px; margin-top: -22px; position: relative; z-index: 2; }
.phone__title strong { font-size: .8125rem; font-weight: 650; display: block; }
.phone__title span { font-size: .625rem; color: var(--fg-3); }
.phone__actions { display: flex; gap: 6px; padding: 10px 14px; }
.phone__mini-btn {
  flex: 1; height: 26px; border-radius: 8px; font-size: .5625rem;
  display: grid; place-items: center;
  background: var(--panel-2); color: var(--fg-2); border: 1px solid var(--line);
}
.phone__mini-btn--primary { background: var(--accent-strong); color: var(--accent-ink); border-color: transparent; font-weight: 700; }
.phone__rows { padding: 0 14px 12px; display: flex; flex-direction: column; gap: 6px; }
.phone__row {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 8px; border-radius: 9px;
  background: var(--panel); border: 1px solid var(--line);
  font-size: .5625rem; color: var(--fg-2);
}
.phone__row i { width: 20px; height: 20px; border-radius: 6px; background: var(--panel-2); display: grid; place-items: center; color: var(--accent); flex-shrink: 0; }
.phone__row i svg { width: 11px; height: 11px; }
.phone__tabbar {
  display: flex; justify-content: space-around;
  padding: 7px 0 12px;
  border-top: 1px solid var(--line);
  font-size: .5rem; color: var(--fg-3);
}
.phone__tabbar b { color: var(--accent); font-weight: 600; }

.matrix__list { display: flex; flex-direction: column; gap: 10px; margin-top: 22px; }
.matrix__row { display: flex; align-items: center; gap: 12px; font-size: .875rem; color: var(--fg-2); }
.matrix__row i {
  display: grid; place-items: center;
  width: 28px; height: 28px; border-radius: 9px;
  background: color-mix(in srgb, var(--brand-cyan) 12%, transparent);
  color: var(--accent); flex-shrink: 0;
}
.matrix__row i svg { width: 15px; height: 15px; }

.work-list { display: flex; flex-direction: column; gap: 8px; margin-top: 24px; width: 100%; }
.work {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: background-color .2s, border-color .2s, transform .2s;
}
.work:hover { background: var(--panel-2); border-color: color-mix(in srgb, var(--brand-cyan) 25%, var(--line)); transform: translateX(3px); }
.work img { width: 56px; height: 38px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.work__meta { min-width: 0; flex: 1; }
.work__title { font-size: .8125rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.work__sub { font-size: .6875rem; color: var(--fg-3); }
.work svg { width: 15px; height: 15px; color: var(--fg-3); flex-shrink: 0; }

/* ---------- 18. CTA banner ---------- */
.cta {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto;
  align-items: center;
  gap: 32px;
  padding: clamp(28px, 4vw, 52px);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--line-2);
  background:
    radial-gradient(420px 280px at 8% 110%, var(--glow-1), transparent 70%),
    radial-gradient(380px 260px at 92% -10%, var(--glow-2), transparent 72%),
    radial-gradient(320px 240px at 62% 120%, var(--glow-3), transparent 74%),
    var(--panel);
  backdrop-filter: blur(26px) saturate(170%);
  -webkit-backdrop-filter: blur(26px) saturate(170%);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}
.cta::before,
.cta::after {
  content: "";
  position: absolute;
  width: 320px; height: 320px;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
}
.cta::before { left: -80px; bottom: -120px; background: var(--glow-1); }
.cta::after { right: -60px; top: -120px; background: var(--glow-2); }
.cta > * { position: relative; z-index: 1; }
.cta__actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- 19. Footer ---------- */
.footer {
  position: relative;
  z-index: 2;
  margin-top: clamp(40px, 6vw, 80px);
  border-top: 1px solid var(--line-2);
  background: color-mix(in srgb, var(--bg-3) 62%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--grad-b) 18%, var(--accent-3) 44%, var(--brand-magenta) 68%, var(--accent-4) 86%, transparent 100%);
  opacity: .55;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 32px;
  padding-block: 48px 36px;
}
.footer__brand { display: flex; flex-direction: column; gap: 14px; max-width: 300px; }
.footer__logo { display: flex; align-items: center; gap: 10px; }
.footer__logo svg { width: 24px; height: 24px; color: var(--accent-strong); }
.footer__logo span { font-size: .9375rem; font-weight: 650; }
.footer__tagline { font-size: .8125rem; color: var(--fg-3); line-height: 1.7; }
.footer__col-title {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 14px;
}
.footer__links { display: flex; flex-direction: column; gap: 9px; }
.footer__link {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .8125rem; color: var(--fg-2);
  transition: color .2s, transform .2s;
  width: fit-content;
}
.footer__link:hover { color: var(--accent); transform: translateX(2px); }
.footer__link svg { width: 14px; height: 14px; opacity: .6; }
.footer__bottom {
  /* 备案要求：备案信息居中展示 */
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  gap: 8px;
  padding-block: 18px 26px;
  border-top: 1px solid var(--line);
  font-size: .75rem;
  color: var(--fg-3);
}
.footer__legal { display: flex; align-items: center; justify-content: center; gap: 12px; flex-wrap: wrap; }
.footer__legal a { transition: color .2s; }
.footer__legal a:hover { color: var(--accent); }

/* ---------- 20. Filters / toolbar ---------- */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  flex-wrap: wrap;
}
.toolbar__chips { display: flex; gap: 6px; overflow-x: auto; padding: 2px; scrollbar-width: none; }
.toolbar__chips::-webkit-scrollbar { display: none; }
.toolbar__right { display: flex; align-items: center; gap: 8px; }

.select-wrap { position: relative; display: inline-flex; }
.select-wrap select {
  appearance: none;
  height: 32px;
  padding: 0 30px 0 12px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--fg-2);
  font-size: .75rem;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.select-wrap select:hover { border-color: var(--line-2); color: var(--fg); }
.select-wrap svg {
  position: absolute; right: 10px; top: 50%;
  transform: translateY(-50%);
  width: 13px; height: 13px;
  color: var(--fg-3);
  pointer-events: none;
}

.seg {
  display: inline-flex;
  padding: 2px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel);
}
.seg button {
  display: grid; place-items: center;
  width: 30px; height: 28px;
  border-radius: 7px;
  color: var(--fg-3);
  transition: color .2s, background-color .2s;
}
.seg button svg { width: 15px; height: 15px; }
.seg button[aria-pressed="true"] { color: var(--fg); background: var(--panel-3); }

/* 搜索框 */
.search {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  height: 46px;
  padding: 0 14px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: border-color .25s, box-shadow .25s, background-color .25s;
}
.search:focus-within {
  border-color: color-mix(in srgb, var(--brand-cyan) 55%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-cyan) 14%, transparent);
  background: var(--panel-2);
}
.search > svg { width: 18px; height: 18px; color: var(--fg-3); flex-shrink: 0; transition: color .2s; }
.search:focus-within > svg { color: var(--accent); }
.search input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: none;
  outline: none;
  font-size: .875rem;
  color: var(--fg);
}
.search input::placeholder { color: var(--fg-3); }
.search__kbd {
  display: inline-flex; align-items: center; gap: 2px;
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  font-family: var(--font-mono);
  font-size: .625rem;
  color: var(--fg-3);
  white-space: nowrap;
}
.search--sm { height: 36px; border-radius: 10px; }
.search--sm input { font-size: .8125rem; }

/* ---------- 21. Resource cards ---------- */
.res-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }
.res-grid[data-view="list"] { grid-template-columns: 1fr; }

.res {
  display: flex;
  flex-direction: column;
  text-align: left;
  width: 100%;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--card-bg);
  overflow: hidden;
  transition: transform .35s var(--ease-out), border-color .3s, box-shadow .35s;
}
.res:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--brand-cyan) 32%, var(--line));
  box-shadow: var(--shadow-2), 0 0 0 1px color-mix(in srgb, var(--brand-cyan) 14%, transparent);
}
.res__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-3); }
.res__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease-out); }
.res:hover .res__media img { transform: scale(1.05); }
.res__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, var(--bg) 55%, transparent), transparent 55%);
}
.res__type { position: absolute; top: 10px; left: 10px; z-index: 2; backdrop-filter: blur(8px); }
.res__dur {
  position: absolute; bottom: 10px; right: 10px; z-index: 2;
  font-family: var(--font-mono); font-size: .625rem;
  padding: 2px 7px; border-radius: 6px;
  background: rgba(0, 0, 0, .6); color: #e8f8ff;
}
.res__body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.res__title { font-size: .9375rem; font-weight: 600; letter-spacing: -.005em; line-height: 1.45; }
.res__desc { font-size: .8125rem; color: var(--fg-3); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.res__meta {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-top: auto; padding-top: 10px;
  font-family: var(--font-mono); font-size: .625rem; color: var(--fg-3);
  letter-spacing: .04em;
}
.res__meta span { display: inline-flex; align-items: center; gap: 4px; }
.res__meta svg { width: 12px; height: 12px; opacity: .8; }
.res__cta {
  display: inline-flex; align-items: center; gap: 5px;
  margin-left: auto; color: var(--accent); font-weight: 600;
}
.res__cta svg { width: 13px; height: 13px; transition: transform .25s; }
.res:hover .res__cta svg { transform: translateX(3px); }

.res-grid[data-view="list"] .res { flex-direction: row; align-items: stretch; }
.res-grid[data-view="list"] .res__media { width: 240px; flex-shrink: 0; aspect-ratio: 16 / 10; }
.res-grid[data-view="list"] .res__body { justify-content: center; }

.empty {
  grid-column: 1 / -1;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 64px 24px;
  border: 1px dashed var(--line-2);
  border-radius: var(--radius-lg);
  text-align: center;
  background: var(--panel);
}
.empty__icon {
  display: grid; place-items: center;
  width: 52px; height: 52px; border-radius: 15px;
  background: var(--panel-2); border: 1px solid var(--line);
  color: var(--fg-3);
}
.empty__icon svg { width: 24px; height: 24px; }
.empty__title { font-size: 1rem; font-weight: 600; color: var(--fg); }
.empty__desc { font-size: .8125rem; color: var(--fg-3); max-width: 360px; }

/* 分页 */
.pager { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 36px; }
.pager__btn {
  min-width: 34px; height: 34px; padding: 0 10px;
  border-radius: 9px; border: 1px solid var(--line);
  background: var(--panel); color: var(--fg-2);
  font-family: var(--font-mono); font-size: .75rem;
  display: grid; place-items: center;
  transition: color .2s, background-color .2s, border-color .2s;
}
.pager__btn:hover:not([disabled]) { color: var(--fg); background: var(--panel-2); border-color: var(--line-2); }
.pager__btn[aria-current="true"] { color: var(--accent-ink); background: var(--accent-strong); border-color: transparent; }
.pager__btn[disabled] { opacity: .35; cursor: not-allowed; }
.pager__btn svg { width: 15px; height: 15px; }
.pager__info { font-family: var(--font-mono); font-size: .6875rem; color: var(--fg-3); margin-right: 8px; }

/* ---------- 22. Modal / Drawer (resource detail) ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 150;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .28s ease;
}
.modal.is-open { opacity: 1; pointer-events: auto; }
.modal__backdrop {
  position: absolute; inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.modal__panel {
  position: relative;
  width: 100%;
  max-width: 940px;
  max-height: min(88dvh, 760px);
  overflow: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-2);
  background: var(--bg-2);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, .7), inset 0 1px 0 rgba(255, 255, 255, .08);
  transform: translateY(16px) scale(.99);
  transition: transform .34s var(--ease-out);
}
.modal.is-open .modal__panel { transform: none; }
.modal__close {
  position: absolute; top: 12px; right: 12px; z-index: 5;
  width: 34px; height: 34px; border-radius: 10px;
  display: grid; place-items: center;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid var(--line);
  color: var(--fg); backdrop-filter: blur(14px);
  transition: background-color .2s, transform .2s;
}
.modal__close:hover { background: var(--panel-3); transform: rotate(90deg); }
.modal__close svg { width: 17px; height: 17px; }

.detail { display: grid; grid-template-columns: 1.15fr 1fr; }
.detail__media { position: relative; min-height: 320px; background: var(--bg-3); }
.detail__media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.detail__body { padding: 30px; display: flex; flex-direction: column; gap: 14px; }
.detail__title { font-size: 1.375rem; font-weight: 650; letter-spacing: -.02em; line-height: 1.3; }
.detail__desc { font-size: .875rem; line-height: 1.8; color: var(--fg-2); }
.detail__specs {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  margin-top: 4px;
}
.detail__spec { padding: 10px 12px; background: var(--bg-2); display: flex; flex-direction: column; gap: 2px; }
.detail__spec dt { font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .1em; text-transform: uppercase; color: var(--fg-3); }
.detail__spec dd { font-size: .8125rem; color: var(--fg); }
.detail__actions { display: flex; flex-direction: column; gap: 8px; margin-top: auto; padding-top: 8px; }

/* ---------- 23. 站内播放器（不跳站） ---------- */
.detail [hidden] { display: none !important; }
.modal__panel.is-media { max-width: 1060px; max-height: min(92dvh, 900px); }
.modal__panel.is-media .modal__close {
  background: rgba(8, 10, 16, .58);
  color: #fff;
  border-color: rgba(255, 255, 255, .2);
}
.modal__panel.is-media .modal__close:hover { background: rgba(8, 10, 16, .78); }

.detail.is-media { grid-template-columns: minmax(0, 1fr); }
.detail.is-media .detail__media {
  height: clamp(210px, 48vh, 520px);
  min-height: 0;
  background: #05070c;
  overflow: hidden;
}
.detail.is-media .detail__body { padding: 24px 28px 26px; }
.detail.is-media .detail__specs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.detail.is-media .detail__actions { flex-direction: row; flex-wrap: wrap; margin-top: 2px; }
.detail.is-media .detail__actions .btn { flex: 1 1 200px; }
.detail.is-media .detail__actions .detail__note { flex: 1 1 100%; text-align: left; }

.player__ambient {
  position: absolute;
  inset: -12%;
  background-position: center;
  background-size: cover;
  filter: blur(44px) saturate(118%) brightness(.5);
  opacity: .6;
  pointer-events: none;
}
.player__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: transparent;
  object-fit: contain;
}

/* 抖音内嵌播放器（弹窗） */
.player__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}
.player__iframe[hidden] { display: none !important; }

.player__gate {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 0;
  background: linear-gradient(180deg, rgba(5, 7, 12, .1), rgba(5, 7, 12, .38));
  color: #fff;
  cursor: pointer;
  transition: opacity .3s ease, visibility .3s;
}
.player__gate[hidden] { display: none !important; }
.player__gate-btn {
  position: relative;
  display: grid;
  place-items: center;
  width: 66px;
  height: 66px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .38);
  background: rgba(8, 10, 16, .42);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 46px -16px rgba(0, 0, 0, .8);
  transition: transform .3s var(--ease-out), background-color .3s;
}
.player__gate:hover .player__gate-btn { transform: scale(1.06); background: rgba(8, 10, 16, .62); }
.player__gate.is-loading .player__gate-btn svg { opacity: 0; }
.player__gate.is-loading .player__gate-btn::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, .28);
  border-top-color: #fff;
  animation: player-spin .9s linear infinite;
}
@keyframes player-spin { to { transform: rotate(360deg); } }
.player__gate-btn svg { width: 24px; height: 24px; margin-left: 3px; }
.player__gate-label {
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .82);
}

.player__audio {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 22px;
  overflow: hidden;
  background: #05070c;
}
.detail__media .player__audio-bg {
  position: absolute;
  inset: -14%;
  width: 128%;
  height: 128%;
  max-width: none;
  object-fit: cover;
  filter: blur(42px) saturate(125%);
  opacity: .5;
  pointer-events: none;
}
.detail__media .player__audio-cover {
  position: relative;
  inset: auto;
  width: auto;
  height: min(46%, 240px);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: 0 26px 60px -20px rgba(0, 0, 0, .7), inset 0 0 0 1px rgba(255, 255, 255, .14);
}
.player__audio-el {
  position: relative;
  width: min(80%, 520px);
  height: 40px;
  color-scheme: dark;
}

/* 资源卡：视频给一个播放提示 */
.res__play {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 54px;
  height: 54px;
  margin: -27px 0 0 -27px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .34);
  background: rgba(6, 9, 16, .42);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #fff;
  opacity: 0;
  transform: scale(.9);
  transition: opacity .3s ease, transform .34s var(--ease-out), background-color .3s;
  pointer-events: none;
  z-index: 3;
}
.res__play svg { width: 18px; height: 18px; margin-left: 2px; }
.res:hover .res__play,
.res:focus-visible .res__play { opacity: 1; transform: none; }
.res:hover .res__play { background: rgba(6, 9, 16, .62); }
@media (hover: none) { .res__play { opacity: .92; transform: none; } }

/* ---------- 23. Downloads ---------- */
.soft {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) auto;
  gap: 18px;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--card-bg);
  transition: border-color .3s, background-color .3s, box-shadow .3s;
}
.soft:hover { border-color: color-mix(in srgb, var(--brand-cyan) 28%, var(--line)); background: var(--card-bg-hover); box-shadow: var(--shadow-2); }
.soft__icon {
  width: 88px; height: 88px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.soft__icon img { width: 100%; height: 100%; object-fit: cover; }
.soft__main { min-width: 0; display: flex; flex-direction: column; gap: 10px; }
.soft__title-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.soft__title { font-size: 1.25rem; font-weight: 650; letter-spacing: -.02em; }
.soft__ver {
  font-family: var(--font-mono); font-size: .625rem; font-weight: 600;
  padding: 2px 8px; border-radius: 999px;
  color: var(--accent-ink); background: var(--accent-strong);
}
.soft__desc { font-size: .875rem; line-height: 1.75; color: var(--fg-2); }
.soft__plats { display: flex; gap: 6px; flex-wrap: wrap; }
/* 需求说明在英文下较长，允许徽章内换行，避免溢出卡片 */
.soft__plats .chip {
  height: auto; min-height: 30px; max-width: 100%;
  padding: 6px 12px; line-height: 1.5;
  white-space: normal; overflow-wrap: anywhere;
}
.soft__side { display: flex; flex-direction: column; gap: 8px; align-items: stretch; width: 180px; }
.soft__side .btn { height: 42px; font-size: .8125rem; min-width: 0; }
.soft__side .btn span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.soft__note { font-family: var(--font-mono); font-size: .5625rem; color: var(--fg-3); text-align: center; letter-spacing: .04em; }

.accordion { margin-top: 16px; border-top: 1px solid var(--line); grid-column: 1 / -1; }
.accordion__btn {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%; padding: 14px 2px;
  font-family: var(--font-mono); font-size: .6875rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--fg-3);
  transition: color .2s;
}
.accordion__btn:hover { color: var(--fg); }
.accordion__btn svg { width: 15px; height: 15px; transition: transform .3s var(--ease); }
.accordion__btn[aria-expanded="true"] { color: var(--accent); }
.accordion__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.accordion__panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .35s var(--ease); }
.accordion__panel > div { overflow: hidden; }
.accordion__btn[aria-expanded="true"] + .accordion__panel { grid-template-rows: 1fr; }
.accordion__inner { padding-bottom: 16px; }
.spec-list { display: flex; flex-direction: column; gap: 7px; }
.spec-list li { display: flex; gap: 9px; font-size: .8125rem; color: var(--fg-2); line-height: 1.7; }
.spec-list li::before {
  content: ""; flex-shrink: 0;
  width: 5px; height: 5px; margin-top: 9px;
  border-radius: 50%;
  background: var(--accent-strong);
  box-shadow: 0 0 8px color-mix(in srgb, var(--brand-cyan) 70%, transparent);
}

/* ---------- 24. Forms ---------- */
.field { display: flex; flex-direction: column; gap: 7px; }
.field__label {
  font-family: var(--font-mono); font-size: .625rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--fg-3);
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.field__label em { font-style: normal; color: var(--accent-2); }
.field__hint { font-size: .6875rem; color: var(--fg-3); }
.input, .textarea, .select {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--fg);
  padding: 11px 13px;
  font-size: .875rem;
  outline: none;
  transition: border-color .25s, box-shadow .25s, background-color .25s;
}
.input::placeholder, .textarea::placeholder { color: var(--fg-3); }
.input:focus, .textarea:focus, .select:focus {
  border-color: color-mix(in srgb, var(--brand-cyan) 55%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-cyan) 13%, transparent);
  background: var(--panel-2);
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: color-mix(in srgb, #ff5c5c 60%, transparent); }
.textarea { min-height: 132px; resize: vertical; line-height: 1.7; }
.select {
  appearance: none;
  cursor: pointer;
  padding-right: 36px;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888f9e' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 15px 15px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-error { font-size: .6875rem; color: #ff7b7b; min-height: 14px; }

.contact-card { display: flex; flex-direction: column; gap: 10px; padding: 20px; }
.contact-card__top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.contact-card__icon {
  display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 11px;
  background: var(--panel-2); border: 1px solid var(--line);
  color: var(--accent);
}
.contact-card__icon svg { width: 18px; height: 18px; }
.contact-card__label { font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .12em; text-transform: uppercase; color: var(--fg-3); }
.contact-card__value { font-size: 1rem; font-weight: 600; letter-spacing: -.01em; word-break: break-all; }
.contact-card__desc { font-size: .75rem; color: var(--fg-3); }
.copy-btn {
  display: inline-flex; align-items: center; gap: 5px;
  height: 26px; padding: 0 9px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--font-mono); font-size: .5625rem;
  letter-spacing: .06em; color: var(--fg-3);
  transition: color .2s, border-color .2s, background-color .2s;
}
.copy-btn:hover { color: var(--accent); border-color: color-mix(in srgb, var(--brand-cyan) 40%, transparent); }
.copy-btn svg { width: 12px; height: 12px; }

/* ---------- 25. About / timeline ---------- */
.statement { display: grid; grid-template-columns: 1.35fr 1fr; gap: 32px; align-items: stretch; }
.statement__text { padding: 30px; display: flex; flex-direction: column; gap: 16px; }
.statement__media { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); min-height: 260px; }
.statement__media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.statement__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, color-mix(in srgb, var(--bg) 72%, transparent));
}
.statement__cap {
  position: absolute; left: 16px; bottom: 14px; z-index: 2;
  font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .08em;
  color: rgba(255, 255, 255, .78);
}

.timeline { position: relative; display: flex; flex-direction: column; gap: 0; }
.timeline::before {
  content: "";
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-2) 8%, var(--line-2) 92%, transparent);
}
.tl-item { position: relative; display: grid; grid-template-columns: 120px 26px minmax(0, 1fr); gap: 12px; padding-block: 14px; }
.tl-item__year { font-family: var(--font-mono); font-size: .8125rem; font-weight: 600; color: var(--accent); padding-top: 2px; }
.tl-item__dot { position: relative; display: flex; justify-content: center; padding-top: 6px; }
.tl-item__dot i {
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--line-2);
  position: relative; z-index: 1;
  transition: border-color .3s, box-shadow .3s;
}
.tl-item:hover .tl-item__dot i {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-cyan) 14%, transparent);
}
.tl-item--now .tl-item__dot i { background: var(--accent-strong); border-color: var(--accent-strong); box-shadow: 0 0 12px color-mix(in srgb, var(--brand-cyan) 70%, transparent); }
.tl-item__body { padding-bottom: 12px; }
.tl-item__title { font-size: .9375rem; font-weight: 600; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tl-item__desc { margin-top: 5px; font-size: .8125rem; line-height: 1.7; color: var(--fg-3); }
.tl-item__link { display: inline-flex; align-items: center; gap: 4px; margin-top: 8px; font-size: .75rem; color: var(--accent); }
.tl-item__link svg { width: 12px; height: 12px; }

.value-card { padding: 26px; display: flex; flex-direction: column; gap: 12px; }
.value-card__num { font-family: var(--font-mono); font-size: .6875rem; color: var(--fg-3); letter-spacing: .1em; }
.value-card__icon { color: var(--accent); }
.value-card__icon svg { width: 24px; height: 24px; }
.value-card__title { font-size: 1.0625rem; font-weight: 650; display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.value-card__en { font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .12em; color: var(--fg-3); text-transform: uppercase; }
.value-card__desc { font-size: .875rem; line-height: 1.75; color: var(--fg-2); }

/* ---------- 26. Security doc ---------- */
.doc { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; align-items: start; }
.doc__toc { position: sticky; top: calc(var(--nav-h) + 28px); display: flex; flex-direction: column; gap: 4px; }
.doc__toc-title { font-family: var(--font-mono); font-size: .5625rem; letter-spacing: .14em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 8px; }
.doc__toc a {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px;
  border-radius: 9px;
  font-size: .8125rem;
  color: var(--fg-2);
  border-left: 2px solid transparent;
  transition: color .2s, background-color .2s, border-color .2s;
}
.doc__toc a span { font-family: var(--font-mono); font-size: .625rem; opacity: .7; }
.doc__toc a:hover { color: var(--fg); background: var(--panel); }
.doc__toc a.is-active { color: var(--accent); background: var(--panel); border-left-color: var(--accent-strong); }

.doc__body { display: flex; flex-direction: column; gap: 18px; }
.doc-section { padding: 26px; scroll-margin-top: calc(var(--nav-h) + 24px); }
.doc-section__head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.doc-section__num {
  font-family: var(--font-mono); font-size: .625rem; letter-spacing: .08em;
  padding: 2px 7px; border-radius: 6px;
  background: var(--panel-2); border: 1px solid var(--line);
  color: var(--accent);
}
.doc-section h2 { font-size: 1.0625rem; font-weight: 650; letter-spacing: -.01em; }
.doc-section p { font-size: .875rem; line-height: 1.85; color: var(--fg-2); }
.doc-section p + p { margin-top: 10px; }
.doc-section code {
  font-family: var(--font-mono); font-size: .8125rem;
  padding: 1px 5px; border-radius: 5px;
  background: var(--code-bg);
  color: var(--accent);
}

.checklist { display: flex; flex-direction: column; gap: 10px; margin-top: 14px; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; font-size: .875rem; color: var(--fg-2); line-height: 1.7; }
.checklist i {
  display: grid; place-items: center; flex-shrink: 0;
  width: 20px; height: 20px; margin-top: 3px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--brand-cyan) 13%, transparent);
  color: var(--accent);
}
.checklist i svg { width: 12px; height: 12px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; margin-top: 14px; }
.data-table { min-width: 520px; font-size: .8125rem; }
.data-table th {
  text-align: left; padding: 10px 14px;
  font-family: var(--font-mono); font-size: .5625rem;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--fg-3); font-weight: 500;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.data-table td { padding: 11px 14px; border-bottom: 1px solid var(--line); color: var(--fg-2); }
.data-table tr:last-child td { border-bottom: 0; }
.data-table td strong { color: var(--fg); font-weight: 600; }
.data-table .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- 27. Toast ---------- */
.toasts {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
  width: calc(100% - 32px);
  max-width: 420px;
}
.toast {
  display: flex; align-items: center; gap: 9px;
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--shadow-2);
  font-size: .8125rem;
  color: var(--fg);
  transform: translateY(12px);
  opacity: 0;
  transition: transform .3s var(--ease-out), opacity .3s ease;
}
.toast.is-in { transform: none; opacity: 1; }
.toast svg { width: 16px; height: 16px; color: var(--accent); flex-shrink: 0; }

/* ---------- 28. Scroll reveal ---------- */
.reveal.is-in { animation: reveal-up .72s var(--ease-out) both; }
@keyframes reveal-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 29. Search overlay ---------- */
.search-overlay {
  position: fixed; inset: 0; z-index: 160;
  display: flex; justify-content: center;
  padding: clamp(60px, 12vh, 140px) 20px 20px;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease;
}
.search-overlay.is-open { opacity: 1; pointer-events: auto; }
.search-overlay__backdrop { position: absolute; inset: 0; background: var(--scrim); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.search-overlay__panel {
  position: relative;
  width: 100%; max-width: 640px; height: fit-content;
  max-height: 70dvh;
  display: flex; flex-direction: column;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-2);
  background: var(--bg-2);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, .75);
  overflow: hidden;
  transform: translateY(-10px) scale(.99);
  transition: transform .3s var(--ease-out);
}
.search-overlay.is-open .search-overlay__panel { transform: none; }
.search-overlay__list { overflow-y: auto; padding: 8px; }
.sr-item {
  display: flex; align-items: center; gap: 12px;
  width: 100%; padding: 10px 12px;
  border-radius: 10px;
  text-align: left;
  transition: background-color .15s;
}
.sr-item:hover, .sr-item.is-active { background: var(--panel-2); }
.sr-item img { width: 42px; height: 30px; border-radius: 6px; object-fit: cover; flex-shrink: 0; }
.sr-item__title { font-size: .8125rem; font-weight: 600; }
.sr-item__sub { font-size: .6875rem; color: var(--fg-3); }
.sr-item__kind { margin-left: auto; font-family: var(--font-mono); font-size: .5625rem; color: var(--fg-3); letter-spacing: .08em; text-transform: uppercase; flex-shrink: 0; }
.sr-empty { padding: 30px 16px; text-align: center; font-size: .8125rem; color: var(--fg-3); }
.search-overlay__foot {
  display: flex; align-items: center; gap: 14px;
  padding: 8px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: .5625rem; color: var(--fg-3);
}
.search-overlay__foot kbd {
  padding: 1px 5px; border-radius: 4px;
  border: 1px solid var(--line);
  background: var(--panel);
}

/* ---------- 30. Utility ---------- */
.hidden { display: none !important; }
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.divider { height: 1px; background: var(--line); border: 0; margin: 0; }

/* ---------- 31. Responsive ---------- */
@media (max-width: 1180px) {
  .nav__links { gap: 0; }
  .nav__link { padding: 0 9px; font-size: .8125rem; }
}

@media (max-width: 1024px) {
  :root { --edge: 24px; }
  .nav__links { display: none; }
  .nav__burger { display: inline-flex; }
  .nav__inner { justify-content: space-between; }
  .nav__actions { margin-left: auto; }

  .news { grid-template-columns: 1fr; }
  .matrix { grid-template-columns: 1fr; gap: 36px; }
  .matrix__visual { order: 2; }
  .statement { grid-template-columns: 1fr; }
  .doc { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .doc__body, .doc-section, .table-wrap { min-width: 0; }
  .doc__toc {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
  }
  .doc__toc-title { width: 100%; margin-bottom: 4px; }
  .doc__toc a { border-left: 0; border: 1px solid var(--line); background: var(--panel-2); }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer__col--contact { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .stats__item:nth-child(4) { border-top: 1px solid var(--line); }
  .cta { grid-template-columns: 1fr; }
  .cta__actions { justify-content: flex-start; }
  .soft { grid-template-columns: 56px minmax(0, 1fr); gap: 14px; padding: 18px; }
  .soft__icon { width: 56px; height: 56px; border-radius: 14px; }
  .soft__side { flex-direction: column; }
  .soft__side .btn { width: 100%; }
  .soft__side { grid-column: 1 / -1; width: 100%; flex-direction: row; }
  .soft__side .btn { flex: 1; }
  .soft__note { display: none; }
  .detail { grid-template-columns: 1fr; }
  .detail__media { min-height: 220px; aspect-ratio: 16 / 9; }
  .detail.is-media .detail__media { aspect-ratio: auto; height: clamp(190px, 34vh, 300px); }
  .detail.is-media .detail__specs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail.is-media .detail__body { padding: 20px; }
  .detail.is-media .detail__actions { flex-direction: column; }
  .detail.is-media .detail__actions .detail__note { flex: 0 0 auto; width: 100%; }
  .detail.is-media .detail__actions .btn { flex: 1 1 auto; width: 100%; }
  .player__audio { gap: 16px; }
  .detail__media .player__audio-cover { height: min(42%, 190px); }
  .detail__body { padding: 22px; }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero__grid { grid-template-columns: 1fr; }
  .page-hero__aside { align-items: flex-start; width: 100%; }
  .page-hero__aside .search { width: 100%; }
}

@media (max-width: 760px) {
  :root { --edge: 18px; --nav-h: 54px; }
  .footer { margin-bottom: 0; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 48px); padding-bottom: 40px; }
  .hero__inner { gap: 16px; }
  .hero__actions { width: 100%; flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .news__item { flex-direction: column; gap: 8px; }
  .news__date { flex-direction: row; align-items: center; gap: 8px; }
  .res-grid[data-view="list"] .res { flex-direction: column; }
  .res-grid[data-view="list"] .res__media { width: 100%; }
  .toolbar { align-items: stretch; }
  .toolbar__chips { order: 1; width: 100%; flex-wrap: wrap; overflow: visible; }
  .toolbar__right { order: 2; width: 100%; justify-content: space-between; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 28px; padding-block: 36px 24px; }
  .footer__brand { grid-column: 1 / -1; max-width: none; }
  .footer__bottom { align-items: center; gap: 8px; }
  .tl-item { grid-template-columns: 74px 22px minmax(0, 1fr); gap: 8px; }
  .modal { padding: 0; align-items: flex-end; }
  .modal__panel { max-height: 92dvh; border-radius: var(--radius-xl) var(--radius-xl) 0 0; }
  .search-overlay { padding-top: 80px; }
  .phone { width: min(250px, 76vw); }
  .toasts { bottom: calc(18px + env(safe-area-inset-bottom)); }
  /* 窄屏下两个下载按钮并排会把「复制下载页链接」挤断，改为上下通栏 */
  .soft__side { flex-direction: column; gap: 8px; }
  .soft__side .btn { width: 100%; flex: none; }
}

@media (max-width: 480px) {
  .soft__side { flex-direction: column; }
  .soft__side .btn { width: 100%; flex: none; }
}

@media (max-width: 420px) {
  /* 四个数字两列排布，比单列更紧凑；仅收敛内边距与字号 */
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__item { padding: 18px 16px; }
  .stats__item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .stats__item:nth-child(4) { border-top: 1px solid var(--line); }
  .nav__brand-sub { display: none; }
  .footer__grid { grid-template-columns: 1fr; }
}

/* ---------- 32. Motion preference ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  #spotlight { display: none; }
}

/* ---------- 33. Print ---------- */
@media print {
  .nav, .drawer, .drawer-backdrop, #spotlight, .toasts, .cta { display: none !important; }
  body { background: #fff; color: #000; padding: 0; }
  .card, .doc-section { box-shadow: none; border: 1px solid #ddd; }
}

/* ---------- 34. 补充组件 ---------- */
.eyebrow--pill {
  height: 32px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--fg-2);
  font-size: .625rem;
}
.eyebrow--pill::before {
  width: 6px; height: 6px;
  border-radius: 50%;
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 color-mix(in srgb, var(--brand-cyan) 55%, transparent); }
  50% { opacity: .55; box-shadow: 0 0 0 5px transparent; }
}

.wip-info {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--line);
}
.wip-info > div {
  background: var(--panel);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.wip-info span {
  font-family: var(--font-mono);
  font-size: .5625rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fg-3);
}
.wip-info strong { font-size: .8125rem; font-weight: 600; color: var(--fg); }

/* ---------- 35. 细节修正 ---------- */
/* 详情弹窗：徽章不拉伸 */
.detail__body > .badge { align-self: flex-start; }
.detail__body > .eyebrow { align-self: flex-start; }

/* 深色下为明亮照片加一层薄暗罩，保持整体暗色调统一 */
html[data-theme="dark"] .res__media::before,
html[data-theme="dark"] .news__cover::before,
html[data-theme="dark"] .statement__media::before,
html[data-theme="dark"] .phone__poster::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(10, 10, 15, .18), rgba(10, 10, 15, .32));
  pointer-events: none;
}

/* 主题图标：暗色显示太阳（点击切亮），亮色显示月亮 */
html[data-theme="dark"] .icon-moon { display: none; }
html[data-theme="light"] .icon-sun { display: none; }

/* 产品卡主按钮改为实心青，焦点渐变只留给首屏与页尾 CTA */
html .product .btn--primary {
  background: linear-gradient(135deg, #d9e9ff 0%, #a8caff 46%, #7fb0ff 100%);
  color: var(--accent-ink);
  box-shadow: 0 10px 26px -14px color-mix(in srgb, var(--brand-cyan) 55%, transparent);
}
html[data-theme="light"] .product .btn--primary {
  background: linear-gradient(135deg, #96c4ff 0%, #4f93ff 46%, #2f7bff 100%);
  color: #fff;
}
html .product .btn--primary:hover {
  background: linear-gradient(135deg, #e8f1ff 0%, #bcd7ff 46%, #8fbcff 100%);
  box-shadow: 0 14px 30px -14px color-mix(in srgb, var(--brand-cyan) 60%, transparent);
}
html[data-theme="light"] .product .btn--primary:hover {
  background: linear-gradient(135deg, #a8caff 0%, #3b86ff 46%, #1f6bff 100%);
}
html .product .btn--primary::after { display: none; }

/* 产品描述限制行数，保证卡片节奏 */
.product__desc {
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 36. 联系页栅格 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 22px;
  align-items: start;
}
.contact-card__value { overflow-wrap: anywhere; word-break: normal; }
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* 打印时不做入场动画，确保内容完整可见 */
@media print {
  .reveal, .reveal.is-in { animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ---------- 37. 常见问题排版 ---------- */
.faq .accordion__btn {
  font-family: var(--font-sans);
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--fg);
}
.faq .accordion__btn:hover { color: var(--accent); }
.faq .accordion__btn[aria-expanded="true"] { color: var(--accent); }

/* ---------- 38. 空状态 ---------- */
.empty { padding: clamp(32px, 4.5vw, 52px) 24px; }
html[data-theme="light"] .empty {
  background:
    radial-gradient(120% 120% at 50% 0%, rgba(0, 150, 170, .05), transparent 60%),
    var(--bg-2);
}
.empty__title { font-size: 1.0625rem; }

/* ---------- 39. 课程卡片（后台发布课程后出现） ---------- */
.course {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.course__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-3);
  border-bottom: 1px solid var(--line);
}
.course__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .7s var(--ease-out);
}
.course:hover .course__media img { transform: scale(1.04); }
.course__ph {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--accent);
  background:
    radial-gradient(70% 90% at 30% 10%, var(--glow-1), transparent 70%),
    radial-gradient(70% 90% at 80% 90%, var(--glow-3), transparent 70%),
    var(--bg-2);
}
.course__ph svg { width: 34px; height: 34px; opacity: .7; }
.course__body {
  padding: 20px 20px 4px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.course__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-height: 20px;
}
.course__stat {
  font-size: 12px;
  color: var(--fg-3);
  letter-spacing: .02em;
}
.course__title { font-size: 1.0625rem; line-height: 1.4; }
.course__sub { color: var(--fg-2); font-size: 13px; }
.course__desc {
  color: var(--fg-3);
  font-size: 13px;
  line-height: 1.75;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.course__foot { padding: 16px 20px 20px; }
.course__foot .btn { justify-content: space-between; }
.course__foot .btn svg { width: 16px; height: 16px; }

/* ---------- 40. 联系留言：蜜罐、提交中、成功态 ---------- */
/* 蜜罐字段：真实用户看不见，机器人会填 → 后台直接丢弃 */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.btn.is-busy {
  opacity: .72;
  cursor: progress;
}

.form-done {
  margin-top: 20px;
  padding: 30px 24px 26px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 90% at 50% 0%, var(--glow-1), transparent 70%),
    var(--panel, var(--bg-2));
  text-align: center;
  display: grid;
  justify-items: center;
  gap: 10px;
}
.form-done[hidden] { display: none !important; }

.form-done__icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--grad-a), var(--grad-b) 55%, var(--accent-3));
  box-shadow: 0 10px 28px -10px var(--glow-2);
  margin-bottom: 4px;
}
.form-done__icon svg { width: 26px; height: 26px; }
.form-done.is-in .form-done__icon { animation: done-pop .55s var(--ease-out) both; }
.form-done .t-h4 { margin: 0; }
.form-done .t-sm {
  margin: 0;
  max-width: 36ch;
  color: var(--fg-2);
  line-height: 1.78;
}
.form-done .btn { margin-top: 6px; }

@keyframes done-pop {
  0% { transform: scale(.6); opacity: 0; }
  60% { transform: scale(1.06); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* 表单级错误行：限流、网络失败这类需要用户看清的提示，不随 toast 消失 */
.form-error--block {
  display: block;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.65;
  margin: 0;
  min-height: 0;
}
.form-error--block:empty { display: none; }
.form-error--block:not(:empty) {
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 95, 109, .10);
  border: 1px solid rgba(255, 95, 109, .28);
}

/* ==========================================================================
   26. 企业邮箱 & 赞助开发者
   赞助用暖色（粉→橙）与站点的蓝青主色区分：一眼能看到，但不抢内容
   ========================================================================== */

/* ---------- 26.1 导航栏赞助按钮 ---------- */
.nav__sponsor {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 34px;
  padding: 0 13px;
  border-radius: 999px;
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: -.01em;
  color: #ffe4ef;
  background:
    linear-gradient(135deg, rgba(255, 95, 162, .34), rgba(255, 138, 96, .26));
  border: 1px solid rgba(255, 132, 176, .60);
  box-shadow: 0 8px 24px -12px rgba(255, 95, 162, 1),
              inset 0 1px 0 rgba(255, 255, 255, .18);
  transition: transform .22s var(--ease), box-shadow .3s ease, border-color .3s ease, background-color .3s ease;
}
.nav__sponsor svg { width: 14px; height: 14px; flex-shrink: 0; }
.nav__sponsor:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 138, 176, .62);
  box-shadow: 0 10px 28px -12px rgba(255, 95, 162, .95),
              inset 0 1px 0 rgba(255, 255, 255, .18);
}
html[data-theme="light"] .nav__sponsor {
  color: #b01a5e;
  background: linear-gradient(135deg, rgba(255, 95, 162, .13), rgba(255, 138, 96, .11));
  border-color: rgba(226, 62, 128, .30);
  box-shadow: 0 6px 18px -12px rgba(226, 62, 128, .55), inset 0 1px 0 rgba(255, 255, 255, .6);
}
html[data-theme="light"] .nav__sponsor:hover { border-color: rgba(226, 62, 128, .48); }
@media (max-width: 720px) {
  /* 窄屏导航塞不下五个按钮，赞助入口交给首页横幅与常驻悬浮按钮 */
  .nav__sponsor { display: none; }
}

/* ---------- 26.2 首页窄横幅 ---------- */
.donate-strip {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 16px 20px;
  margin-top: 4px;
  margin-bottom: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 122, 168, .26);
  background:
    radial-gradient(120% 180% at 0% 0%, rgba(255, 95, 162, .13), transparent 60%),
    radial-gradient(120% 180% at 100% 100%, rgba(255, 138, 96, .11), transparent 62%),
    var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
  overflow: hidden;
}
.donate-strip__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 12px;
  color: #ff9dc2;
  background: linear-gradient(135deg, rgba(255, 95, 162, .18), rgba(255, 138, 96, .12));
  border: 1px solid rgba(255, 122, 168, .28);
}
.donate-strip__icon svg { width: 19px; height: 19px; }
.donate-strip__text { flex: 1 1 240px; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.donate-strip__title {
  display: block;
  font-size: .9375rem;
  font-weight: 650;
  letter-spacing: -.01em;
  color: var(--fg);
}
.donate-strip__desc { display: block; font-size: .8125rem; color: var(--fg-2); line-height: 1.6; }
html[data-theme="light"] .donate-strip {
  border-color: rgba(226, 62, 128, .20);
  background:
    radial-gradient(120% 180% at 0% 0%, rgba(255, 95, 162, .07), transparent 60%),
    radial-gradient(120% 180% at 100% 100%, rgba(255, 138, 96, .06), transparent 62%),
    rgba(255, 255, 255, .62);
}

/* ---------- 26.3 首页大区块 ---------- */
.donate {
  position: relative;
  margin-block: clamp(40px, 4.4vw, 68px);
  padding: clamp(26px, 3vw, 44px);
  border-radius: clamp(20px, 2.4vw, 30px);
  border: 1px solid rgba(255, 122, 168, .22);
  background:
    radial-gradient(90% 140% at 8% 0%, rgba(255, 95, 162, .13), transparent 58%),
    radial-gradient(80% 130% at 96% 12%, rgba(255, 138, 96, .10), transparent 60%),
    radial-gradient(70% 120% at 50% 120%, rgba(155, 123, 255, .10), transparent 62%),
    var(--bg-2);
  overflow: hidden;
  isolation: isolate;
}
.donate::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(255, 122, 168, .45), transparent 34%, transparent 66%, rgba(255, 138, 96, .35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: -1;
}
html[data-theme="light"] .donate {
  border-color: rgba(226, 62, 128, .16);
  background:
    radial-gradient(90% 140% at 8% 0%, rgba(255, 95, 162, .08), transparent 58%),
    radial-gradient(80% 130% at 96% 12%, rgba(255, 138, 96, .07), transparent 60%),
    radial-gradient(70% 120% at 50% 120%, rgba(155, 123, 255, .06), transparent 62%),
    rgba(255, 255, 255, .72);
}

.donate__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  gap: clamp(24px, 3vw, 46px);
  align-items: center;
}
@media (max-width: 880px) { .donate__layout { grid-template-columns: 1fr; } }

.donate__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .10em;
  text-transform: uppercase;
  color: #ff9dc2;
  margin-bottom: 12px;
}
.donate__eyebrow svg { width: 14px; height: 14px; }
html[data-theme="light"] .donate__eyebrow { color: #c02669; }

.donate__title {
  font-size: clamp(1.5rem, 2.3vw, 2.05rem);
  font-weight: 700;
  letter-spacing: -.026em;
  line-height: 1.2;
  margin-bottom: 12px;
}
.donate__lead {
  font-size: .9375rem;
  line-height: 1.82;
  color: var(--fg-2);
  max-width: 52ch;
}
.donate__actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

.btn--donate {
  color: #2b0713;
  background: linear-gradient(135deg, #ff9dc2 0%, #ff6fa8 46%, #ff8a60 100%);
  box-shadow: 0 14px 34px -14px rgba(255, 95, 162, .85), inset 0 1px 0 rgba(255, 255, 255, .5);
}
.btn--donate:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 44px -14px rgba(255, 95, 162, 1), inset 0 1px 0 rgba(255, 255, 255, .6);
}
html[data-theme="light"] .btn--donate {
  color: #fff;
  background: linear-gradient(135deg, #ff6fa8 0%, #f0417f 52%, #f0743c 100%);
  box-shadow: 0 14px 30px -14px rgba(214, 40, 112, .55), inset 0 1px 0 rgba(255, 255, 255, .35);
}

.donate__meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.donate__meta-item { font-size: .78rem; color: var(--fg-3); display: flex; align-items: center; gap: 6px; }
.donate__meta-item svg { width: 13px; height: 13px; opacity: .7; }

/* 右侧：二维码 / 金额 */
.donate__panel {
  border-radius: var(--radius-xl);
  border: 1px solid var(--line-2);
  background: var(--card-bg);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-1), inset 0 1px 0 rgba(255, 255, 255, .07);
  padding: 20px;
}
.donate__panel-title {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--fg-2);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.donate__amounts { display: flex; gap: 8px; flex-wrap: wrap; }
.donate__amount {
  height: 34px;
  padding: 0 13px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-size: .8125rem;
  font-weight: 600;
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
  transition: all .2s var(--ease);
}
.donate__amount:hover { color: var(--fg); border-color: var(--line-2); background: var(--panel-2); }
.donate__amount.is-on {
  color: #ffd9e8;
  border-color: rgba(255, 122, 168, .55);
  background: linear-gradient(135deg, rgba(255, 95, 162, .22), rgba(255, 138, 96, .16));
  box-shadow: 0 0 0 1px rgba(255, 122, 168, .18) inset;
}
html[data-theme="light"] .donate__amount.is-on { color: #b01a5e; }

.donate__qr-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 14px; }
.donate__qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 12px 10px;
  border-radius: 13px;
  border: 1px dashed var(--line-2);
  background: rgba(255, 255, 255, .02);
}
.donate__qr-card img {
  width: 100%;
  max-width: 118px;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}
.donate__qr-card span { font-size: .72rem; color: var(--fg-3); }
.donate__qr-empty {
  width: 100%;
  max-width: 118px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 8px;
  border: 1px dashed var(--line-2);
  color: var(--fg-3);
  font-size: .68rem;
  text-align: center;
  line-height: 1.5;
  padding: 8px;
}
.donate__note {
  margin-top: 12px;
  font-size: .72rem;
  line-height: 1.65;
  color: var(--fg-3);
}

/* ---------- 26.4 悬浮按钮 ---------- */
.donate-fab {
  position: fixed;
  right: 22px;
  bottom: 26px;
  z-index: 55;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 650;
  color: #2b0713;
  background: linear-gradient(135deg, #ff9dc2, #ff6fa8 52%, #ff8a60);
  box-shadow: 0 16px 38px -14px rgba(255, 95, 162, .9), inset 0 1px 0 rgba(255, 255, 255, .45);
  opacity: 0;
  transform: translateY(14px) scale(.94);
  pointer-events: none;
  transition: opacity .32s var(--ease), transform .32s var(--ease), box-shadow .3s ease;
}
.donate-fab.is-on { opacity: 1; transform: none; pointer-events: auto; }
.donate-fab:hover { box-shadow: 0 20px 48px -14px rgba(255, 95, 162, 1), inset 0 1px 0 rgba(255, 255, 255, .55); }
.donate-fab svg { width: 17px; height: 17px; }
.donate-fab__pulse {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid rgba(255, 122, 168, .7);
  animation: fab-pulse 2.8s var(--ease-out) infinite;
  pointer-events: none;
}
@keyframes fab-pulse {
  0% { opacity: .55; transform: scale(1); }
  70% { opacity: 0; transform: scale(1.28); }
  100% { opacity: 0; transform: scale(1.28); }
}
@media (max-width: 720px) {
  .donate-fab { right: 14px; bottom: 16px; height: 42px; padding: 0 14px; font-size: .8125rem; }
  .donate-fab.is-on + .donate-fab__spacer { height: 0; }
}
@media (prefers-reduced-motion: reduce) { .donate-fab__pulse { animation: none; } }

/* ---------- 26.5 捐赠弹窗 ---------- */
.donate-modal {
  position: fixed;
  inset: 0;
  z-index: 96;
  display: grid;
  place-items: center;
  padding: 18px;
}
.donate-modal__scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  animation: dm-fade .26s ease both;
}
.donate-modal__panel {
  position: relative;
  z-index: 1;
  width: min(520px, 100%);
  max-height: min(88dvh, 760px);
  overflow-y: auto;
  padding: 26px;
  border-radius: 24px;
  border: 1px solid var(--line-2);
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(255, 95, 162, .10), transparent 56%),
    var(--bg-2);
  box-shadow: var(--shadow-2), inset 0 1px 0 rgba(255, 255, 255, .08);
  animation: dm-in .34s var(--ease-out) both;
}
html[data-theme="light"] .donate-modal__panel { background: radial-gradient(120% 90% at 0% 0%, rgba(255, 95, 162, .06), transparent 56%), #fff; }
@keyframes dm-fade { from { opacity: 0; } }
@keyframes dm-in { from { opacity: 0; transform: translateY(16px) scale(.97); } }

.donate-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: var(--fg-3);
  transition: all .2s ease;
}
.donate-modal__close:hover { color: var(--fg); background: var(--panel-2); }
.donate-modal__close svg { width: 16px; height: 16px; }

.donate-modal__title { font-size: 1.25rem; font-weight: 700; letter-spacing: -.02em; margin-bottom: 6px; }
.donate-modal__lead { font-size: .875rem; line-height: 1.75; color: var(--fg-2); margin-bottom: 18px; }
.donate-modal__hint {
  font-size: .75rem;
  color: #ff9dc2;
  min-height: 18px;
  margin-top: 10px;
  transition: color .2s ease;
}
html[data-theme="light"] .donate-modal__hint { color: #c02669; }
.donate-modal__foot {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: .75rem;
  color: var(--fg-3);
}
.donate-modal__foot a { color: var(--fg-2); text-decoration: underline; text-underline-offset: 3px; }
.donate-modal__foot a:hover { color: var(--accent); }

/* ---------- 26.6 页脚邮箱 ---------- */
.footer__mail {
  display: flex !important;
  align-items: flex-start;
  gap: 9px;
  line-height: 1.45;
}
.footer__mail svg { width: 15px; height: 15px; margin-top: 3px; flex-shrink: 0; opacity: .65; }
.footer__mail-body { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.footer__mail-addr {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: -.01em;
  color: var(--fg);
  overflow-wrap: anywhere;
}
.footer__mail-label { font-size: .68rem; color: var(--fg-3); letter-spacing: .01em; }
.footer__mail:hover .footer__mail-addr { color: var(--accent); }
.footer__mail--dev .footer__mail-label { color: #ff9dc2; }
html[data-theme="light"] .footer__mail--dev .footer__mail-label { color: #c02669; }

/* ---------- 26.7 联系页多邮箱 ---------- */
.contact-card__mails {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: var(--font-mono);
  font-size: .82rem;
  overflow-wrap: anywhere;
}
.contact-card__mails a { color: var(--fg); transition: color .2s ease; }
.contact-card__mails a:hover { color: var(--accent); }
.contact-card__mails .is-dev { color: var(--fg-2); font-size: .76rem; }
.contact-card__mails .is-dev:hover { color: #ff9dc2; }
.contact-card__mails-tag {
  font-family: var(--font-sans);
  font-size: .66rem;
  color: var(--fg-3);
  letter-spacing: .02em;
  margin-top: 4px;
}
.contact-card__dev-mail {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--fg-2);
  overflow-wrap: anywhere;
}
.contact-card__dev-mail svg { width: 13px; height: 13px; opacity: .6; flex-shrink: 0; }
.contact-card__dev-mail:hover { color: #ff9dc2; }

/* ---------- 26.8 后台邮箱体检用（前台不显示，防止误用） ---------- */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* 赞助面板：未上传收款码时的邮件引导 */
.donate__panel-empty {
  font-size: .8125rem;
  line-height: 1.75;
  color: var(--fg-2);
  margin-bottom: 14px;
}
.donate__panel-link {
  display: block;
  margin-top: 10px;
  text-align: center;
  font-size: .75rem;
  color: var(--fg-3);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.donate__panel-link:hover { color: var(--accent); }

/* 超窄屏（iPhone SE / 390px）：导航按钮间距收紧，避免顶栏被裁切 */
@media (max-width: 420px) {
  .nav__actions { gap: 4px; }
  .lang-toggle__opt { min-width: 30px; padding: 0 5px; }
}

/* ================= 27. 赞助奖励展示（网站 3.0） ================= */
.donate__custom { margin-top: 8px; }
.donate__custom input {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: 9px;
  color: var(--fg);
  padding: 8px 12px;
  font-size: .8rem;
  font-family: inherit;
  outline: none;
  transition: border-color .2s var(--ease);
}
.donate__custom input:focus { border-color: rgba(255, 122, 168, .55); }
.donate__custom input::placeholder { color: var(--fg-3); }

.sd-reward {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 13px;
  border: 1px solid rgba(255, 122, 168, .28);
  background: linear-gradient(135deg, rgba(255, 95, 162, .1), rgba(178, 75, 255, .08));
}
html[data-theme="light"] .sd-reward {
  border-color: rgba(192, 38, 105, .25);
  background: linear-gradient(135deg, rgba(255, 95, 162, .08), rgba(178, 75, 255, .06));
}
.sd-reward__icon {
  flex: none;
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: #ff9dc2;
  animation: sd-pop .38s var(--ease);
}
html[data-theme="light"] .sd-reward__icon { color: #c02669; }
.sd-reward__icon svg { width: 40px; height: 40px; overflow: visible; }
.sd-reward__text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.sd-reward__text b { font-size: .92rem; color: var(--fg); }
.sd-reward__text span { font-size: .74rem; color: var(--fg-3); }
@keyframes sd-pop {
  0% { transform: scale(.55); opacity: 0; }
  60% { transform: scale(1.12); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* 图标动态细节：珍珠浮动 / 蒸汽流动 / 电池充电闪烁 */
.sd-pearl { animation: sd-bob 2.6s ease-in-out infinite; }
.sd-pearl:nth-of-type(2) { animation-delay: .45s; }
.sd-pearl:nth-of-type(3) { animation-delay: .9s; }
@keyframes sd-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-1.8px); }
}
.sd-steam {
  stroke-dasharray: 22;
  animation: sd-steam 2.4s linear infinite;
  opacity: .65;
}
.sd-steam + .sd-steam { animation-delay: 1.1s; }
@keyframes sd-steam {
  0% { stroke-dashoffset: 0; opacity: .15; }
  35% { opacity: .8; }
  100% { stroke-dashoffset: -44; opacity: .08; }
}
.sd-bolt { animation: sd-flash 1.8s ease-in-out infinite; }
@keyframes sd-flash {
  0%, 100% { opacity: .4; }
  50% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
  .sd-pearl, .sd-steam, .sd-bolt { animation: none; }
  .sd-reward__icon { animation: none; }
}

/* ================= 28. 动态详情弹层（毛玻璃） ================= */
.sd-news-modal {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 20px;
}
.sd-news-modal__scrim {
  position: absolute;
  inset: 0;
  background: rgba(8, 8, 12, .45);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  opacity: 0;
  transition: opacity .2s var(--ease);
}
html[data-theme="light"] .sd-news-modal__scrim { background: rgba(240, 240, 246, .55); }
.sd-news-modal__panel {
  position: relative;
  width: min(680px, 100%);
  max-height: min(78vh, 720px);
  overflow-y: auto;
  border-radius: 18px;
  border: 1px solid var(--line-2);
  background: var(--panel);
  padding: clamp(22px, 4vw, 36px);
  opacity: 0;
  transform: translateY(14px) scale(.98);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.sd-news-modal.is-in .sd-news-modal__scrim { opacity: 1; }
.sd-news-modal.is-in .sd-news-modal__panel { opacity: 1; transform: none; }
.sd-news-modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--fg-2);
  cursor: pointer;
  transition: color .2s, border-color .2s;
}
.sd-news-modal__close:hover { color: var(--fg); border-color: var(--fg-3); }
.sd-news-modal__close svg { width: 16px; height: 16px; }
.sd-news-modal__meta {
  display: flex;
  gap: 10px;
  font-size: .76rem;
  color: var(--fg-3);
  font-family: var(--mono, 'JetBrains Mono', monospace);
  margin-bottom: 10px;
}
.sd-news-modal__title { font-size: 1.35rem; line-height: 1.3; color: var(--fg); }
.sd-news-modal__lead { margin-top: 10px; font-size: .92rem; color: var(--accent); }
.sd-news-modal__body {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: .92rem;
  line-height: 1.85;
  color: var(--fg-2);
}
.news__item--detail { cursor: pointer; }

/* ================= 29. 赞助名单（署名墙） ================= */
.donate-wall__toggle {
  width: 100%;
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 12px;
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--fg-2);
  font-size: .84rem;
  cursor: pointer;
  font-family: inherit;
  transition: border-color .2s var(--ease);
}
.donate-wall__toggle:hover { border-color: var(--fg-3); }
.donate-wall__toggle b {
  color: #ff9dc2;
  font-weight: 600;
  white-space: nowrap;
}
.donate-wall__chev {
  margin-left: auto;
  display: grid;
  place-items: center;
  transition: transform .2s var(--ease);
}
.donate-wall__chev svg { width: 15px; height: 15px; }
.donate-wall__toggle.is-open .donate-wall__chev { transform: rotate(180deg); }
.donate-wall {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 260px;
  overflow-y: auto;
  padding: 2px;
}
.donate-wall__empty {
  padding: 16px 14px;
  text-align: center;
  font-size: .8rem;
  color: var(--fg-3);
}
.donate-wall__item {
  padding: 10px 13px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--panel-2);
}
.donate-wall__row { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.donate-wall__name { font-size: .88rem; color: var(--fg); }
.donate-wall__tier {
  font-size: .7rem;
  padding: 1px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 122, 168, .35);
  color: #ff9dc2;
}
.donate-wall__date {
  margin-left: auto;
  font-size: .7rem;
  color: var(--fg-3);
  font-family: var(--mono, 'JetBrains Mono', monospace);
}
.donate-wall__msg {
  margin-top: 5px;
  font-size: .78rem;
  line-height: 1.6;
  color: var(--fg-3);
}

/* ================= 30. 课程合集分组 ================= */
.course-group__head {
  grid-column: 1 / -1;
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-top: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}
.course-group__head:first-child { margin-top: 0; }
.course-group__count { font-size: .78rem; color: var(--fg-3); }

/* ================= 31. 短剧板块 ================= */
.drama { overflow: hidden; display: flex; flex-direction: column; padding: 0; }
.drama__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-3);
  border-bottom: 1px solid var(--line);
}
.drama__img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.2, .7, .2, 1);
}
.drama:hover .drama__img { transform: scale(1.05); }
.drama__play {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  background: linear-gradient(180deg, rgba(6,6,10,.05), rgba(6,6,10,.42));
  color: #fff;
  opacity: 0; transition: opacity .25s ease;
}
.drama__play svg { width: 54px; height: 54px; filter: drop-shadow(0 6px 18px rgba(0,0,0,.5)); }
.drama:hover .drama__play { opacity: 1; }
.drama__badge { position: absolute; top: 12px; left: 12px; z-index: 2; }
.drama__body { padding: 16px 18px 20px; display: flex; flex-direction: column; gap: 8px; }
.drama__title { margin: 2px 0 0; line-height: 1.3; }
.drama__meta { font-size: .82rem; color: var(--fg-3); }
.drama__meta:empty { display: none; }

/* 移动端竖屏刷流（抖音式上下滑动切集） */
.drama-story { position: fixed; top: 0; left: 0; right: 0; bottom: 0; width: 100%; height: 100%; z-index: 9999; background: #000; display: none; }
@media (max-width: 820px) { .drama-story.is-active { display: block; } }
.drama-story__track { height: 100%; overflow-y: scroll; scroll-snap-type: y mandatory; -webkit-overflow-scrolling: touch; scrollbar-width: none; }
.drama-story__track::-webkit-scrollbar { display: none; }
.drama-story__slide { position: relative; height: 100%; width: 100%; scroll-snap-align: start; display: flex; align-items: center; justify-content: center; background: #000; }
.drama-story__video { width: 100%; height: 100%; object-fit: contain; background: #000; }
.drama-story__iframe { width: 100%; height: 100%; border: 0; background: #000; }
.drama-story__fallback { max-width: 100%; max-height: 100%; object-fit: contain; }
.drama-story__overlay { position: absolute; left: 0; right: 0; bottom: 0; padding: 28px 20px 44px; color: #fff; background: linear-gradient(180deg, transparent, rgba(0,0,0,.72)); pointer-events: none; }
.drama-story__overlay h3 { margin: 0 0 6px; font-size: 1.05rem; }
.drama-story__overlay p { margin: 0; font-size: .86rem; line-height: 1.5; opacity: .9; max-width: 92%; }
.drama-story__close { position: fixed; top: calc(env(safe-area-inset-top, 0px) + 14px); right: 16px; z-index: 6; width: 42px; height: 42px; border-radius: 50%; border: 0; background: rgba(0,0,0,.4); color: #fff; display: grid; place-items: center; cursor: pointer; }
.drama-story__close svg { width: 22px; height: 22px; }
/* 左右边缘滑动区：覆盖在 iframe/视频之上，保证嵌入内容也能上下刷切集（中间留给播放控制） */
.drama-story__edge { position: absolute; top: 0; bottom: 0; width: 16%; z-index: 4; }
.drama-story__edge--l { left: 0; }
.drama-story__edge--r { right: 0; }
@media (hover: hover) and (pointer: fine) { .drama-story__edge { display: none; } }

/* ===== 短剧独立播放页（drama.html，整页跳转，不使用浮层） ===== */
.drama-view-wrap { padding-top: clamp(24px, 4vw, 48px); padding-bottom: clamp(40px, 6vw, 80px); }
.drama-back { display: inline-flex; align-items: center; gap: 6px; color: var(--fg-2); text-decoration: none; font-size: .92rem; margin-bottom: 18px; transition: color .2s; }
.drama-back:hover { color: var(--brand-cyan); }
.drama-back svg { width: 18px; height: 18px; }
.drama-view { max-width: 960px; margin: 0 auto; }
.drama-player { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; border-radius: 16px; overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.45); border: 1px solid var(--line); }
.drama-player__frame, .drama-player__video { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; background: #000; }
.drama-player__fallback { width: 100%; height: 100%; object-fit: contain; }
.drama-info { margin-top: 22px; }
.drama-info__title { margin: 10px 0 8px; }
.drama-info__desc { color: var(--fg-2); line-height: 1.7; margin: 0 0 18px; max-width: 70ch; }
.detail__specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px 18px; margin: 0 0 22px; padding: 18px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.detail__spec { display: flex; flex-direction: column; gap: 4px; }
.detail__spec dt { font-size: .78rem; color: var(--fg-3); }
.detail__spec dd { margin: 0; font-weight: 600; }
.drama-nav { display: flex; gap: 12px; margin: 6px 0 22px; }
.drama-nav__btn { flex: 1; display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; color: var(--fg); text-decoration: none; font-weight: 600; transition: .2s; }
.drama-nav__btn svg { width: 20px; height: 20px; flex: none; }
.drama-nav__btn:hover { border-color: var(--brand-cyan); color: var(--brand-cyan); }
.drama-nav__btn--next { justify-content: flex-end; text-align: right; }
.drama-nav__btn--disabled { flex: 1; display: flex; align-items: center; padding: 14px 16px; color: var(--fg-3); background: transparent; border: 1px dashed var(--line); border-radius: 12px; font-size: .9rem; }
.drama-eps { margin-top: 6px; }
.drama-eps__label { display: block; font-size: .82rem; color: var(--fg-3); margin-bottom: 10px; }
.drama-eps__list { display: flex; flex-wrap: wrap; gap: 10px; }
.drama-eps__item { padding: 9px 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; color: var(--fg-2); text-decoration: none; font-size: .88rem; transition: .2s; }
.drama-eps__item:hover { border-color: var(--brand-cyan); color: var(--brand-cyan); }
.drama-eps__item.is-active { background: linear-gradient(135deg, var(--brand-cyan), var(--brand-magenta)); color: #fff; border-color: transparent; }