/* ============================================================
   SayDo 官网样式 v2 — 杂交终稿(风格定稿 docs/site/style-demos/11-hybrid.html:
   03 海报皮肤 × 01 对话骨架 × 04 环线图 × 08 总装图)

   与 v1 的关系:子页类名契约保持不变(docs/privacy/support/terms 零改动换新皮肤);
   颜色一律消费语义 token(亮色=tokens.css 纸上账本,暗色=本文件夜色账本扩展层),
   组件不写死色值。两处例外(有意为之的「实物道具」,注释标明):
     · .map-card 闭环运行图 = 印刷图纸,暗色下仍是纸;
     · .sheet   隐私总装图 = 蓝图,本来就是深底。
   ============================================================ */

/* ============ 官网专用 · 夜色账本原色层(唯一个字面量出处)============ */
:root {
  --nl-bg: #171410;            /* 夜纸:深暖墨 */
  --nl-card: #201c15;          /* 夜纸:卡片 */
  --nl-raised: #262119;        /* 夜纸:抬升面 */
  --nl-soft: rgb(38 33 25 / 55%);
  --nl-control: rgb(46 40 30 / 70%);
  --nl-line: rgb(233 224 206 / 11%);
  --nl-line-soft: rgb(233 224 206 / 18%);
  --nl-text: #ede5d3;          /* 暖白 */
  --nl-text-secondary: #b7ac97;
  --nl-text-muted: #8d8471;
  --nl-text-faint: #6b6353;
  --nl-wash: rgb(237 229 211 / 5%);
  --nl-scrim: rgb(10 8 5 / 55%);
  --nl-indigo: #93add6;        /* 夜黛蓝 */
  --nl-indigo-wash: rgb(147 173 214 / 12%);
  --nl-indigo-line: rgb(147 173 214 / 36%);
  --nl-pine: #74a88c;          /* 夜松绿 */
  --nl-pine-wash: rgb(116 168 140 / 11%);
  --nl-ochre: #d09a58;         /* 夜赭石 */
  --nl-ochre-wash: rgb(208 154 88 / 11%);
  --nl-seal: #d0513c;          /* 夜印朱(文字/线框) */
  --nl-seal-fill: #b8442f;     /* 夜印朱·填充底(与暖白文字对比 ≥4.5) */
  --nl-seal-wash: rgb(208 81 60 / 12%);
  --nl-seal-line: rgb(208 81 60 / 45%);
  --nl-seal-fg: #fff5e8;
  --nl-fg-on-fill: #241d13;
  --nl-glow-a: rgb(208 154 88 / 7%);
  --nl-glow-b: rgb(147 173 214 / 6%);
  --nl-shadow: 0 1px 2px rgb(0 0 0 / 24%), 0 10px 32px rgb(0 0 0 / 32%);
  --nl-shadow-hover: 0 2px 6px rgb(0 0 0 / 28%), 0 18px 52px rgb(0 0 0 / 42%);
}

/* 亮色侧官网补充语义:填充朱与淡朱(消费 tokens.css 矿彩层) */
:root {
  --brand-seal-fill: var(--seal);
  --brand-seal-wash: var(--seal-wash);
  /* 横向滚动边缘提示阴影:随主题从文字色派生,无字面色 */
  --scroll-hint: color-mix(in srgb, var(--text-primary) 26%, transparent);
  /* 宽度阶梯:全站只有两级——阅读栏(聚焦连续内容)与整幅(容器 1120) */
  --w-read: 760px;
  /* 海报硬投影(朱字块/对话窗/命令行块的偏移实影) */
  --offset-shadow: 10px 10px 0 rgb(75 64 47 / 12%);
  --offset-shadow-strong: 12px 12px 0 var(--text-primary);
  /* 蓝图(深底道具)固定色:两主题同一副图纸 */
  --sheet-bg: #3c5f96;
  --sheet-paper: #f0ede4;
  --sheet-line: rgb(240 237 228 / 85%);
  --sheet-line-soft: rgb(240 237 228 / 26%);
  --sheet-accent: #f3b8a9;
}

/* 夜账本:覆盖语义层(手动 dark 与跟随系统两处同构) */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg-app: var(--nl-bg);
  --bg-glow-a: var(--nl-glow-a);
  --bg-glow-b: var(--nl-glow-b);
  --surface: var(--nl-card);
  --surface-raised: var(--nl-raised);
  --surface-soft: var(--nl-soft);
  --surface-control: var(--nl-control);
  --surface-ink-wash: var(--nl-wash);
  --scrim: var(--nl-scrim);
  --line: var(--nl-line);
  --line-soft: var(--nl-line-soft);
  --text-primary: var(--nl-text);
  --text-secondary: var(--nl-text-secondary);
  --text-muted: var(--nl-text-muted);
  --text-faint: var(--nl-text-faint);
  --fg-on-fill: var(--nl-fg-on-fill);
  --active-ink: var(--nl-indigo);
  --active-ink-fg: var(--nl-fg-on-fill);
  --active-ink-wash: var(--nl-indigo-wash);
  --active-ink-border: var(--nl-indigo-line);
  --color-success: var(--nl-pine);
  --color-success-wash: var(--nl-pine-wash);
  --color-warning: var(--nl-ochre);
  --color-warning-wash: var(--nl-ochre-wash);
  --color-error: var(--nl-seal);
  --color-error-wash: var(--nl-seal-wash);
  --color-info: var(--nl-indigo);
  --brand-seal: var(--nl-seal);
  --brand-seal-fg: var(--nl-seal-fg);
  --brand-seal-border: var(--nl-seal-line);
  --brand-seal-fill: var(--nl-seal-fill);
  --brand-seal-wash: var(--nl-seal-wash);
  --shadow-card: var(--nl-shadow);
  --shadow-card-hover: var(--nl-shadow-hover);
  --noise-opacity: 0.05;
  --offset-shadow: 10px 10px 0 rgb(0 0 0 / 42%);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;
    --bg-app: var(--nl-bg);
    --bg-glow-a: var(--nl-glow-a);
    --bg-glow-b: var(--nl-glow-b);
    --surface: var(--nl-card);
    --surface-raised: var(--nl-raised);
    --surface-soft: var(--nl-soft);
    --surface-control: var(--nl-control);
    --surface-ink-wash: var(--nl-wash);
    --scrim: var(--nl-scrim);
    --line: var(--nl-line);
    --line-soft: var(--nl-line-soft);
    --text-primary: var(--nl-text);
    --text-secondary: var(--nl-text-secondary);
    --text-muted: var(--nl-text-muted);
    --text-faint: var(--nl-text-faint);
    --fg-on-fill: var(--nl-fg-on-fill);
    --active-ink: var(--nl-indigo);
    --active-ink-fg: var(--nl-fg-on-fill);
    --active-ink-wash: var(--nl-indigo-wash);
    --active-ink-border: var(--nl-indigo-line);
    --color-success: var(--nl-pine);
    --color-success-wash: var(--nl-pine-wash);
    --color-warning: var(--nl-ochre);
    --color-warning-wash: var(--nl-ochre-wash);
    --color-error: var(--nl-seal);
    --color-error-wash: var(--nl-seal-wash);
    --color-info: var(--nl-indigo);
    --brand-seal: var(--nl-seal);
    --brand-seal-fg: var(--nl-seal-fg);
    --brand-seal-border: var(--nl-seal-line);
    --brand-seal-fill: var(--nl-seal-fill);
    --brand-seal-wash: var(--nl-seal-wash);
    --shadow-card: var(--nl-shadow);
    --shadow-card-hover: var(--nl-shadow-hover);
    --noise-opacity: 0.05;
    --offset-shadow: 10px 10px 0 rgb(0 0 0 / 42%);
  }
}

/* ============ 基础 reset 与排版 ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 76px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .docs-toc a, .docs-toc-mobile a { transition: none; }
}
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--text-primary);
  background: var(--bg-app);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--duration-base) ease, color var(--duration-base) ease;
}
body > main { flex: 1; }
html[lang="en"] body { font-size: var(--text-md); }
html[lang="en"] h1, html[lang="en"] h2, html[lang="en"] h3, html[lang="en"] .display-font {
  font-family: var(--font-display); letter-spacing: 0;
}
html[lang="en"] .glyph { letter-spacing: .01em; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; padding: 0; }
ul, ol { padding-left: 1.4em; }
img { display: inline-block; vertical-align: middle; }
a { color: var(--active-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--brand-seal-fill); color: var(--brand-seal-fg); }
:focus-visible { outline: var(--focus-ring-width) solid var(--focus-ring); outline-offset: var(--focus-ring-offset); }
code { font-family: var(--font-mono); font-size: .9em; background: var(--code-bg); padding: 1px 5px; border-radius: var(--radius-2xs); }

/* 印刷颗粒(03 质感,全页画框) */
body::after {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 200;
  mix-blend-mode: multiply; opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0.3 0 0 0 0 0.28 0 0 0 0 0.25 0 0 0 0.045 0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}
:root[data-theme="dark"] body::after { mix-blend-mode: overlay; opacity: .3; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) body::after { mix-blend-mode: overlay; opacity: .3; }
}

.skip-link {
  position: absolute; left: var(--space-4); top: -48px; z-index: 300;
  background: var(--brand-seal-fill); color: var(--brand-seal-fg);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-xs);
  font-size: var(--text-sm); font-weight: 600; transition: top var(--duration-base) var(--ease-out);
}
.skip-link:focus { top: var(--space-2); text-decoration: none; }

.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 5vw; min-width: 0; }

/* ============ 节标题系统(poster 画框)============ */
.sec, .section { padding: 76px 0; }
.section--tight { padding: var(--space-7) 0; }
.section--alt { background: var(--surface-soft); border-block: 2px solid var(--text-primary); }
.ph, .section-head { max-width: var(--w-read); margin-bottom: 40px; }
.section-head.is-center { text-align: center; margin-inline: auto; }
.section-head.is-center .section-lead, .section-head.is-center .ph-lead { margin-inline: auto; }
.ph-kick, .eyebrow {
  font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: .3em;
  color: var(--brand-seal); display: flex; align-items: center; gap: 14px;
  margin-bottom: 18px; font-weight: 700; text-transform: uppercase;
}
.section-head.is-center .ph-kick, .section-head.is-center .eyebrow { justify-content: center; }
.ph-kick::after, .eyebrow::after { content: ""; width: 76px; height: 2px; background: var(--brand-seal); flex: none; }
.ph-title, .section-title {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(32px, 5vw, 56px); line-height: 1.2; letter-spacing: .02em;
}
.ph-title em, .section-title em { font-style: normal; color: var(--brand-seal); }
.ph-title u, .section-title u { text-decoration: none; color: transparent; -webkit-text-stroke: 1.6px var(--text-primary); }
.ph-lead, .section-lead { margin-top: 16px; font-size: 15.5px; color: var(--text-secondary); max-width: 600px; }
.ph-lead b, .section-lead b { color: var(--text-primary); }

/* ============ 顶栏(03 海报式:整栏 2px 墨线分格)============ */
.site-header {
  position: sticky; top: 0; z-index: 60;
  background: var(--bg-app);
  border-bottom: 2px solid var(--text-primary);
}
.site-header .container { display: flex; align-items: stretch; max-width: none; padding: 0; }
.brand-lockup {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display); font-weight: 700; font-size: 19px; letter-spacing: .1em;
  color: var(--text-primary); padding: 14px 22px; border-right: 2px solid var(--text-primary);
  text-decoration: none; white-space: nowrap;
}
.brand-lockup:hover { text-decoration: none; }
.brand-mark { display: inline-block; width: 26px; height: 26px; border-radius: 6px; flex: none; }
.brand-lockup .brand-en { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-muted); letter-spacing: .12em; font-weight: 400; }
.nav { flex: 1; display: flex; align-items: center; gap: 24px; padding: 0 26px; font-size: 13px; font-weight: 600; min-width: 0; }
.nav-link { color: var(--text-primary); text-decoration: none; white-space: nowrap; }
.nav-link:hover { color: var(--brand-seal); text-decoration: none; }
.nav-link[aria-current="page"] { color: var(--brand-seal); }
.header-actions { display: flex; align-items: stretch; margin-left: auto; }
.lang-switch { display: flex; align-items: center; gap: 2px; padding: 0 16px; border-left: 2px solid var(--text-primary); font-size: 12px; font-family: var(--font-mono); }
.lang-switch a { color: var(--text-muted); padding: 2px 6px; text-decoration: none; }
.lang-switch a:hover { color: var(--text-primary); text-decoration: none; }
.lang-switch a.is-active { color: var(--brand-seal); font-weight: 700; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; border: none; border-left: 2px solid var(--text-primary);
  background: none; color: var(--text-secondary); cursor: pointer; transition: .15s;
}
.icon-btn:hover { background: var(--surface-ink-wash); color: var(--brand-seal); }
.icon-btn svg { width: 19px; height: 19px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme]) .theme-toggle .icon-moon { display: none; }
}
.menu-toggle { display: none; }
/* 顶栏主 CTA:墨块(03 海报 .go) */
.go {
  display: flex; align-items: center; padding: 0 24px;
  background: var(--text-primary); color: var(--bg-app);
  font-weight: 700; font-size: 13.5px; letter-spacing: .08em;
  text-decoration: none; transition: .2s; white-space: nowrap; border-left: 2px solid var(--text-primary);
}
.go:hover { background: var(--brand-seal-fill); color: var(--brand-seal-fg); text-decoration: none; }

/* ============ 按钮与徽章 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-family: var(--font-body); font-size: 14px; font-weight: 600;
  border-radius: var(--radius-xs); padding: 9px 18px; cursor: pointer;
  text-decoration: none; border: 1px solid transparent; transition: .2s;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-seal { background: var(--brand-seal-fill); color: var(--brand-seal-fg); box-shadow: 0 4px 14px rgb(177 58 43 / 30%); }
.btn-seal:hover { transform: translateY(-2px); color: var(--brand-seal-fg); }
.btn-primary { background: var(--text-primary); color: var(--bg-app); }
.btn-primary:hover { background: var(--brand-seal-fill); color: var(--brand-seal-fg); }
.btn-secondary, .btn-line { background: transparent; color: var(--active-ink); border-color: var(--active-ink-border); }
.btn-secondary:hover, .btn-line:hover { background: var(--active-ink-wash); color: var(--active-ink); }
.btn-lg { padding: 13px 30px; font-size: 15px; font-weight: 700; }
.btn.done { background: var(--color-success); color: #fffaf0; box-shadow: none; pointer-events: none; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 600; letter-spacing: .04em;
  padding: 2px 10px; border-radius: var(--radius-pill);
  border: 1px solid currentColor; white-space: nowrap;
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: var(--radius-pill); background: currentColor; }
.badge-live { background: var(--color-success-wash); color: var(--color-success); }
.badge-soon { background: var(--active-ink-wash); color: var(--active-ink); }
.badge-progress { background: var(--color-warning-wash); color: var(--color-warning); }

/* ============ Hero(03 海报语言)============ */
.hero { position: relative; padding: 56px 5vw 64px; border-bottom: 2px solid var(--text-primary); overflow: hidden; }
/* 桌面端 hero 撑满首屏(减去顶栏约 58px),内容垂直居中;移动端保持自然高度 */
@media (min-width: 981px) {
  .hero { min-height: calc(100vh - 58px); display: flex; flex-direction: column; justify-content: center; }
}
.hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(330px, 5fr); gap: 44px; align-items: center; }
/* row-gap 给第二行的朱印「就」让出旋转上侵的空间,两行不再相叠 */
.glyph-field { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0 1.2vw; row-gap: .26em; line-height: 1; }
/* 字阵固定两行:第一行「说到,」第二行「就做到。」(en 同构:Say it, it's / done.) */
.glyph-br { flex-basis: 100%; height: 0; }
.glyph { font-family: var(--font-display); font-weight: 700; font-size: clamp(62px, 8.4vw, 146px); }
.glyph.g1 { color: var(--text-primary); }
.glyph.g2 { color: var(--text-primary); transform: translateY(.12em); }
.glyph.g3 { color: transparent; -webkit-text-stroke: 2.5px var(--text-primary); transform: translateY(-.06em); }
.glyph.g4 { color: var(--brand-seal-fg); background: var(--brand-seal-fill); padding: 0 .06em; transform: rotate(-3deg) translateY(.05em); box-shadow: var(--offset-shadow-strong); }
.glyph.g5 { color: var(--brand-seal); }
.rough { filter: url(#inkRough); }
/* 套准十字(海报画框) */
.reg { position: absolute; width: 22px; height: 22px; pointer-events: none; opacity: .55; }
.reg::before, .reg::after { content: ""; position: absolute; background: var(--text-primary); }
.reg::before { left: 50%; top: 0; width: 1.5px; height: 100%; transform: translateX(-50%); }
.reg::after { top: 50%; left: 0; height: 1.5px; width: 100%; transform: translateY(-50%); }
.reg.tl { top: 14px; left: 14px; } .reg.tr { top: 14px; right: 14px; }
.reg.bl { bottom: 14px; left: 14px; } .reg.br { bottom: 14px; right: 14px; }
.hero-ru { position: absolute; top: 16px; right: 5vw; text-align: right; font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); letter-spacing: .14em; line-height: 1.9; }
.hero .map-card { margin: 0; }
.hero-sub { margin-top: 40px; max-width: 580px; font-size: 16.5px; color: var(--text-secondary); border-left: 6px solid var(--brand-seal-fill); padding-left: 20px; }
.hero-sub b { color: var(--text-primary); }
.hero-note { margin-top: 20px; font-size: 12.5px; color: var(--text-muted); font-family: var(--font-mono); display: flex; gap: 18px; flex-wrap: wrap; }
.hero-note i { font-style: normal; color: var(--color-success); }
.hero-note .wip { color: var(--color-warning); }
.hero-note a { color: var(--active-ink); }

/* Hero 双联按钮(描边墨框,左边朱底) */
.hero-cta { margin-top: 28px; display: flex; flex-wrap: wrap; }
.hero-cta a { text-decoration: none; font-weight: 700; font-size: 15px; padding: 14px 32px; border: 2px solid var(--text-primary); color: var(--text-primary); }
.hero-cta a:first-child { background: var(--brand-seal-fill); border-color: var(--brand-seal-fill); color: var(--brand-seal-fg); }
.hero-cta a:first-child:hover { background: var(--text-primary); border-color: var(--text-primary); color: var(--bg-app); }
.hero-cta a + a { margin-left: -2px; }
.hero-cta a + a:hover { background: var(--text-primary); color: var(--bg-app); }

/* ============ 跑马灯(墨带 + 反向描边带)============ */
.marquee { border-bottom: 2px solid var(--text-primary); background: var(--text-primary); color: var(--bg-app); overflow: hidden; padding: 11px 0; }
.marquee-track { display: flex; white-space: nowrap; animation: mq 44s linear infinite; width: max-content; }
.marquee span { font-family: var(--font-display); font-size: 16px; letter-spacing: .2em; padding: 0 28px; }
.marquee b { color: var(--brand-seal); font-weight: 400; padding: 0 4px; }
.marquee.rev { background: var(--bg-app); color: transparent; border-top: 2px solid var(--text-primary); border-bottom: none; }
.marquee.rev span { -webkit-text-stroke: 1.2px var(--text-primary); }
.marquee.rev .marquee-track { animation-direction: reverse; }
@keyframes mq { to { transform: translateX(-50%); } }

/* ============ 环线图(04 零件;印刷图纸道具:暗色下仍是纸)============ */
.map-card {
  background: var(--paper-card); color: var(--ink);
  border: 1px solid var(--rule); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card); padding: 18px 10px 8px;
  max-width: 860px; margin: 0 auto;
  background-image: linear-gradient(rgb(60 95 150 / 5.5%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(60 95 150 / 5.5%) 1px, transparent 1px);
  background-size: 28px 28px;
}
.map-card svg { width: 100%; height: auto; display: block; }
.map-cap { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding: 8px 14px 10px; font-family: var(--font-mono); font-size: 11px; color: var(--ink-faint); letter-spacing: .12em; }
.st-name { font-family: var(--font-body); font-size: 14.5px; font-weight: 600; fill: var(--ink); }
.st-en { font-family: var(--font-mono); font-size: 8.5px; fill: var(--ink-faint); letter-spacing: .1em; }
.seg-note { font-family: var(--font-mono); font-size: 9px; fill: var(--ink-muted); letter-spacing: .08em; }
.loop-name { font-family: var(--font-display); font-weight: 700; font-size: 26px; fill: var(--ink); letter-spacing: .14em; }
.loop-en { font-family: var(--font-mono); font-size: 10px; fill: var(--ink-muted); letter-spacing: .3em; }

/* ============ 对话流(01 骨架)============ */
.thread { max-width: var(--w-read); margin: 0 auto; }
.day-divider { display: flex; align-items: center; gap: 14px; margin: 34px 0 24px; color: var(--text-faint); font-size: 12px; letter-spacing: .12em; }
.day-divider::before, .day-divider::after { content: ""; flex: 1; height: 1px; background: var(--line-soft); }
.day-divider b { font-weight: 600; color: var(--text-muted); }
.msg { display: flex; gap: 10px; margin: 18px 0; max-width: 88%; }
.msg .avatar { width: 30px; height: 30px; border-radius: var(--radius-xs); flex: none; margin-top: 2px; display: grid; place-items: center; font-size: 13px; font-family: var(--font-display); font-weight: 700; }
.msg .bubble { border-radius: 4px 14px 14px 14px; padding: 12px 16px; position: relative; box-shadow: var(--shadow-card); min-width: 0; }
.msg .who { font-size: 11px; color: var(--text-faint); margin-bottom: 4px; letter-spacing: .06em; }
.msg.saydo .avatar { background: var(--brand-seal-fill); color: var(--brand-seal-fg); }
.msg.saydo .bubble { background: var(--surface); border: 1px solid var(--line-soft); color: var(--text-primary); }
.msg.me { margin-left: auto; flex-direction: row-reverse; }
.msg.me .avatar { background: var(--text-primary); color: var(--bg-app); }
.msg.me .bubble { background: var(--active-ink); color: var(--active-ink-fg); border-radius: 14px 4px 14px 14px; box-shadow: var(--paper-shadow-ink); }
.msg.me .bubble b { color: inherit; }
.msg.me .read { display: block; font-size: 11px; opacity: .62; margin-top: 6px; text-align: right; }
.msg.saydo .bubble b { color: var(--text-primary); }
.voice { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.voice svg { flex: none; }
.wave { display: inline-flex; align-items: flex-end; gap: 2.5px; height: 16px; }
.wave i { width: 3px; background: currentColor; border-radius: 2px; animation: wv 1.1s ease-in-out infinite; }
.wave i:nth-child(1) { height: 6px; } .wave i:nth-child(2) { height: 13px; animation-delay: .15s; }
.wave i:nth-child(3) { height: 9px; animation-delay: .3s; } .wave i:nth-child(4) { height: 15px; animation-delay: .45s; }
.wave i:nth-child(5) { height: 7px; animation-delay: .6s; }
@keyframes wv { 50% { transform: scaleY(.45); } }
.v-dur { height: 3px; background: rgb(255 250 240 / 35%); border-radius: 2px; overflow: hidden; margin-top: 9px; }
:root[data-theme="dark"] .v-dur { background: rgb(36 29 19 / 30%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme]) .v-dur { background: rgb(36 29 19 / 30%); } }
.v-dur i { display: block; height: 100%; width: 0; background: currentColor; }
.in .v-dur i, .sim-in .v-dur i { animation: vdur 3s linear .5s forwards; }
@keyframes vdur { to { width: 100%; } }
.typing { display: inline-flex; gap: 4px; padding: 4px 2px; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--text-faint); animation: tp 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: .2s; } .typing i:nth-child(3) { animation-delay: .4s; }
@keyframes tp { 30% { transform: translateY(-4px); opacity: 1; } 60% { opacity: .4; } }

/* 气泡内卡片:决策包 / 账本 */
.bcard { background: var(--surface-raised); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; margin-top: 10px; font-size: 14px; position: relative; }
.bcard h4 { font-family: var(--font-display); font-size: 16px; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.bcard h4 .seal-dot { width: 8px; height: 8px; background: var(--brand-seal-fill); border-radius: 2px; transform: rotate(45deg); flex: none; }
.pkg { display: grid; gap: 8px; }
.pkg .pkg-item { border: 1px solid var(--line-soft); border-radius: var(--radius-xs); padding: 10px 12px; background: var(--surface); }
.pkg .pkg-item b { font-size: 13.5px; }
.pkg .pkg-item p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-top: 2px; }
.pkg .cost { font-size: 12px; color: var(--color-warning); font-family: var(--font-mono); }
.ledger-row { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; border-top: 1px dashed var(--line-soft); transition: background .5s; }
.ledger-row:first-of-type { border-top: none; }
.ledger-row .dot { width: 9px; height: 9px; border-radius: 50%; margin-top: 7px; flex: none; }
.ledger-row .body { flex: 1; min-width: 0; }
.ledger-row .t { font-size: 14px; line-height: 1.5; }
.ledger-row .meta { font-size: 12px; color: var(--text-muted); }
.ledger-row .chip { margin-left: auto; flex: none; font-size: 11px; padding: 2px 9px; border-radius: var(--radius-pill); border: 1px solid; line-height: 1.7; white-space: nowrap; }
.tone-ochre .dot { background: var(--color-warning); }
.tone-ochre .chip { color: var(--color-warning); border-color: var(--ochre-line); background: var(--color-warning-wash); }
.tone-indigo .dot { background: var(--active-ink); }
.tone-indigo .chip { color: var(--active-ink); border-color: var(--active-ink-border); background: var(--active-ink-wash); }
.tone-pine .dot { background: var(--color-success); }
.tone-pine .chip { color: var(--color-success); border-color: var(--pine-line); background: var(--color-success-wash); }
.tone-muted .dot { background: var(--text-faint); }
.tone-muted .chip { color: var(--text-muted); border-color: var(--line); background: var(--surface-ink-wash); }
.ledger-row.flash { background: var(--color-success-wash); }
.approve-row { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.stamp-ok {
  position: absolute; top: 12px; right: 14px;
  transform: rotate(-12deg) scale(1.7); opacity: 0;
  border: 2.5px solid var(--brand-seal); color: var(--brand-seal);
  border-radius: 6px; padding: 4px 12px;
  font-family: var(--font-display); font-weight: 700; font-size: 16px; letter-spacing: .16em;
  transition: .35s var(--ease-spring); pointer-events: none;
  background: var(--surface); background: color-mix(in srgb, var(--surface) 70%, transparent);
}
.stamp-ok.on { opacity: 1; transform: rotate(-12deg) scale(1); }
.sys { text-align: center; font-size: 12px; color: var(--text-faint); margin: 24px 0 6px; }
.sys span { background: var(--surface-ink-wash); border-radius: var(--radius-pill); padding: 3px 14px; }

/* ============ 影院式对话窗(一屏高 · 自动播放 · 旧消息被挤走)============ */
.chatwin { max-width: var(--w-read); margin: 0 auto; border: 2px solid var(--text-primary); border-radius: var(--radius-xl); overflow: hidden; background: var(--surface); box-shadow: var(--offset-shadow); }
.chatwin-bar { display: flex; align-items: center; gap: 12px; padding: 10px 16px; border-bottom: 2px solid var(--text-primary); background: var(--surface-raised); }
.chatwin-bar .peerdot { width: 30px; height: 30px; border-radius: var(--radius-xs); background: var(--brand-seal-fill); color: var(--brand-seal-fg); display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 14px; flex: none; }
.chatwin-bar .pmeta { flex: 1; min-width: 0; line-height: 1.35; }
.chatwin-bar .pmeta b { font-size: 13.5px; display: block; }
.chatwin-bar .pmeta span { font-size: 11px; color: var(--color-success); display: flex; align-items: center; gap: 5px; }
.chatwin-bar .pmeta span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--color-success); }
.sim-btn { font-family: var(--font-body); font-size: 12px; color: var(--text-secondary); background: none; border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 5px 14px; cursor: pointer; transition: .15s; }
.sim-btn:hover { color: var(--brand-seal); border-color: var(--brand-seal-border); }
.chatlive { height: clamp(500px, calc(100vh - 280px), 640px); min-height: 420px; overflow-y: auto; padding: 18px 18px 24px; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
.chatlive .thread { max-width: none; }
.chatlive .day-divider { margin: 22px 0 16px; }
.chatwin-foot { border-top: 1px solid var(--line-soft); padding: 8px 16px; font-family: var(--font-mono); font-size: 10.5px; color: var(--text-faint); display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
/* beat 入场 / 离场 */
.beat { transition: opacity .45s ease, transform .45s var(--ease-out); }
.beat.pre { opacity: 0; transform: translateY(16px); }
.beat.gone { opacity: 0; transform: translateY(-14px); }

/* ============ 痛点对照 / 四义 / 现状(poster 件)============ */
.versus { display: grid; grid-template-columns: 1fr 1fr; border: 2px solid var(--text-primary); max-width: 960px; }
.versus > div { padding: 30px 30px 34px; }
.versus .before { border-right: 2px solid var(--text-primary); }
.versus .after { background: var(--surface); }
.versus h3 { font-family: var(--font-display); font-size: 22px; margin-bottom: 12px; letter-spacing: .05em; }
.versus .before h3 { color: var(--text-muted); text-decoration: line-through; text-decoration-color: var(--brand-seal); text-decoration-thickness: 3px; }
.versus .after h3 { color: var(--brand-seal); }
.versus p { font-size: 14.5px; color: var(--text-secondary); }
.versus .after p b { color: var(--text-primary); }

.tenets { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; background: var(--text-primary); border: 2px solid var(--text-primary); max-width: 1100px; }
.tenet { background: var(--bg-app); padding: 24px 22px 28px; position: relative; transition: .2s; }
.tenet:hover { background: var(--surface); transform: translateY(-4px); }
.tenet::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px; background: var(--tc, var(--active-ink)); }
.tenet .tn { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; color: var(--tc, var(--active-ink)); font-weight: 700; }
.tenet h3 { font-family: var(--font-display); font-size: 19px; margin: 10px 0 8px; letter-spacing: .04em; }
.tenet p { font-size: 13px; color: var(--text-secondary); line-height: 1.75; }

/* 产品现状(诚实标注):海报画框 + 完成度徽章 */
.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; background: var(--text-primary); border: 2px solid var(--text-primary); max-width: 1100px; }
.status-card { background: var(--bg-app); padding: 24px 24px 28px; transition: .2s; }
.status-card:hover { background: var(--surface); }
.status-card .sc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.status-card h3 { font-family: var(--font-display); font-size: 19px; letter-spacing: .04em; }
.status-card p { font-size: 13.5px; color: var(--text-secondary); line-height: 1.75; }

/* ============ 隐私总装图(08 零件;蓝图道具:两主题同一副深底图纸)============ */
.sheet {
  background: var(--sheet-bg); color: var(--sheet-paper); position: relative;
  background-image: linear-gradient(rgb(20 28 48 / 25%), rgb(20 28 48 / 25%)),
    repeating-linear-gradient(0deg, var(--sheet-line-soft) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(90deg, var(--sheet-line-soft) 0 1px, transparent 1px 26px);
}
.sheet-inner { border: 2px solid var(--sheet-line); margin: 26px; position: relative; padding: 56px 40px 40px; }
.corner { position: absolute; width: 18px; height: 18px; border: 2px solid var(--sheet-line); }
.corner.tl { top: -2px; left: -2px; border-right: none; border-bottom: none; }
.corner.tr { top: -2px; right: -2px; border-left: none; border-bottom: none; }
.corner.bl { bottom: -2px; left: -2px; border-right: none; border-top: none; }
.corner.br { bottom: -2px; right: -2px; border-left: none; border-top: none; }
.sheet .ph-kick, .sheet .eyebrow { color: var(--sheet-accent); }
.sheet .ph-kick::after, .sheet .eyebrow::after { background: var(--sheet-accent); }
.sheet .ph-title, .sheet .section-title { color: var(--sheet-paper); }
.sheet .ph-title em, .sheet .section-title em { color: var(--sheet-accent); }
.sheet .ph-title u, .sheet .section-title u { -webkit-text-stroke-color: var(--sheet-paper); }
.sheet .ph-lead, .sheet .section-lead { color: rgb(240 237 228 / 82%); }
.sheet .ph-lead b, .sheet .section-lead b { color: var(--sheet-paper); }
.sheet .btn-secondary { color: var(--sheet-paper); border-color: var(--sheet-line); }
.sheet .btn-secondary:hover { background: rgb(240 237 228 / 10%); color: var(--sheet-paper); }
.fig svg { width: 100%; height: auto; display: block; max-width: 820px; margin: 10px auto 0; }
.sl { stroke: var(--sheet-line); stroke-width: 1.6; fill: none; }
.sl2 { stroke: var(--sheet-line); stroke-width: 1; fill: none; stroke-dasharray: 5 5; }
.sc { stroke: var(--sheet-accent); stroke-width: 1.6; fill: none; }
.st { fill: var(--sheet-paper); font-family: var(--font-body); font-size: 13px; }
.sts { fill: var(--sheet-paper); opacity: .72; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .12em; }
.sheet-foot { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; max-width: 820px; margin: 26px auto 0; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .14em; opacity: .75; }
.sheet-cta { max-width: 820px; margin: 22px auto 0; }

/* ============ 收尾 CTA(03 整幅朱版)============ */
.finale { background: var(--brand-seal-fill); color: var(--brand-seal-fg); text-align: center; padding: 100px 5vw 110px; position: relative; }
.finale h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(44px, 8vw, 104px); line-height: 1.2; letter-spacing: .04em; }
.finale p { margin: 24px auto 34px; max-width: 520px; font-size: 15.5px; opacity: .88; }
.finale .cmd { display: block; margin: 0 auto 30px; max-width: 720px; background: var(--ink); color: #e8e4d8; border-radius: var(--radius-2xs); padding: 18px 22px; font-family: var(--font-mono); font-size: clamp(10.5px, 1.4vw, 13px); line-height: 1.8; word-break: break-all; text-align: left; box-shadow: var(--offset-shadow); }
.finale .cmd b { color: #8fc7a3; font-weight: 400; }
.finale .plat { display: flex; gap: 2px; justify-content: center; flex-wrap: wrap; margin-bottom: 36px; }
.finale .plat span { border: 1.5px solid color-mix(in srgb, currentColor 55%, transparent); padding: 8px 18px; font-weight: 700; font-size: 12.5px; }
.finale .plat span i { font-style: normal; font-family: var(--font-mono); font-size: 10px; display: block; letter-spacing: .1em; opacity: .85; }
.finale .cta-final { display: inline-block; background: var(--ink); color: var(--paper-fg); text-decoration: none; font-weight: 700; font-size: 16px; padding: 16px 46px; letter-spacing: .1em; transition: .2s; }
.finale .cta-final:hover { transform: translate(-3px, -3px); box-shadow: 6px 6px 0 rgb(52 51 46 / 45%); text-decoration: none; }
.finale .alt-links { margin-top: 26px; font-size: 13px; display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; }
.finale .alt-links a { color: var(--brand-seal-fg); text-decoration: underline; text-underline-offset: 3px; opacity: .92; }
.finale .alt-links a:hover { opacity: 1; }

/* ============ 页脚(poster 墨线收口)============ */
.site-footer { border-top: 2px solid var(--text-primary); padding: 40px 0 26px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
.footer-brand-col .footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text-primary); font-weight: 700; font-family: var(--font-display); font-size: 17px; letter-spacing: .06em; margin-bottom: 12px; }
.footer-brand img { display: inline-block; width: 24px; height: 24px; border-radius: 6px; }
.footer-brand-col p { font-size: var(--text-sm); color: var(--text-muted); max-width: 32ch; }
.footer-col h4 { font-family: var(--font-mono); font-size: 11px; letter-spacing: .2em; color: var(--text-faint); font-weight: 700; margin-bottom: 14px; text-transform: uppercase; }
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.footer-col a { color: var(--text-muted); font-size: var(--text-sm); }
.footer-col a:hover { color: var(--brand-seal); text-decoration: none; }
.footer-meta { display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 18px; font-size: 12.5px; color: var(--text-muted); font-family: var(--font-mono); }
.footer-meta a { color: var(--text-muted); }
.footer-meta a:hover { color: var(--brand-seal); text-decoration: none; }
.footer-meta a.icp-beian { color: var(--text-faint); }
.footer-meta a.icp-beian:hover { color: var(--text-primary); }

/* ============ 法律页(隐私/条款/支持)============ */
.legal { padding: var(--space-7) 0 var(--space-8); }
.legal .container { max-width: calc(var(--w-read) + 2 * var(--space-5)); }
.legal h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(28px, 4vw, 40px); margin-bottom: var(--space-2); }
.legal .lede { font-size: var(--text-sm); color: var(--text-muted); margin-bottom: var(--space-5); }
.legal h2 { font-family: var(--font-display); font-size: var(--text-lg); margin: var(--space-6) 0 var(--space-2); }
.legal p { margin: var(--space-2) 0; color: var(--text-secondary); }
.legal .card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: var(--space-4); margin: var(--space-3) 0; }
.legal .card p:last-child { margin-bottom: 0; }
.legal table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); margin: var(--space-3) 0; }
.legal th, .legal td { border: 1px solid var(--line); padding: var(--space-2) var(--space-3); text-align: left; vertical-align: top; color: var(--text-secondary); }
.legal th:first-child, .legal td:first-child { white-space: nowrap; }
.legal th { background: var(--surface-ink-wash); color: var(--text-primary); font-weight: 600; }
.legal ul { margin: var(--space-2) 0; color: var(--text-secondary); }
.legal a { text-decoration: underline; text-underline-offset: 2px; }

/* ============ Docs 页 ============ */
.docs-hero { padding-block: var(--space-7) var(--space-5); }
.docs-hero h1 { font-family: var(--font-display); font-weight: 700; font-size: clamp(30px, 4.5vw, 44px); margin-bottom: var(--space-3); }
.docs-hero .docs-lede { font-size: var(--text-lg); color: var(--text-secondary); max-width: 56ch; }
.docs-layout { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: var(--space-7); padding-bottom: var(--space-6); min-width: 0; }
.docs-toc { position: sticky; top: 88px; align-self: start; max-height: calc(100vh - 112px); overflow-y: auto; padding-right: var(--space-2); }
.toc-group { display: block; font-family: var(--font-mono); font-size: 11px; letter-spacing: .12em; color: var(--text-muted); margin: var(--space-4) 0 var(--space-2); }
.docs-toc .toc-group:first-child { margin-top: 0; }
.docs-toc a, .docs-toc-mobile a {
  display: block; font-size: var(--text-sm); color: var(--text-secondary);
  padding: 3px var(--space-2) 3px var(--space-3);
  border-left: 2px solid var(--line); border-radius: 0 var(--radius-2xs) var(--radius-2xs) 0;
  font-weight: 400;
  transition: color var(--duration-fast) var(--ease-out), background-color var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out);
}
.docs-toc a:hover, .docs-toc-mobile a:hover { color: var(--text-primary); text-decoration: none; border-left-color: var(--brand-seal); background: var(--hover-wash); }
/* 当前章:墨字 + 黛蓝竖线 + 选中底,权重大于 hover */
.docs-toc a.is-current, .docs-toc-mobile a.is-current,
.docs-toc a[aria-current="location"], .docs-toc-mobile a[aria-current="location"],
.docs-toc a.is-current:hover, .docs-toc-mobile a.is-current:hover,
.docs-toc a[aria-current="location"]:hover, .docs-toc-mobile a[aria-current="location"]:hover {
  color: var(--text-primary); background: var(--selected-wash); border-left-color: var(--active-ink); font-weight: 600; text-decoration: none;
}
.docs-toc-mobile { display: none; }

/* 宽内容各有滚动容器(.table-scroll / pre),正文列不再整体 overflow */
.docs-body { min-width: 0; padding-bottom: var(--space-5); }
.docs-body h2 { font-family: var(--font-display); font-weight: 700; font-size: var(--text-2xl); margin: var(--space-8) 0 var(--space-4); padding-top: var(--space-5); border-top: 2px solid var(--text-primary); }
.docs-body > h2:first-child { margin-top: 0; padding-top: 0; border-top: none; }
.docs-body h3 { font-family: var(--font-display); font-size: var(--text-lg); margin: var(--space-6) 0 var(--space-2); }
.docs-body h4 { font-size: var(--text-md); margin: var(--space-5) 0 var(--space-2); }
.docs-body p { margin: var(--space-2) 0 var(--space-3); color: var(--text-secondary); max-width: 76ch; }
.docs-body ul, .docs-body ol { margin: var(--space-2) 0 var(--space-3); color: var(--text-secondary); max-width: 76ch; }
.docs-body li { margin: .35em 0; }
.docs-body li > ul, .docs-body li > ol { margin: var(--space-1) 0; }
.docs-body table { width: 100%; border-collapse: collapse; font-size: var(--text-sm); margin: var(--space-3) 0 var(--space-4); }
.docs-body th, .docs-body td { border: 1px solid var(--line); padding: var(--space-2) var(--space-3); text-align: left; vertical-align: top; color: var(--text-secondary); overflow-wrap: break-word; min-width: 6em; }
.docs-body th:first-child, .docs-body td:first-child { min-width: 8em; }
.docs-body td code { word-break: break-all; }
.docs-body th { background: var(--surface-ink-wash); color: var(--text-primary); font-weight: 600; }
.docs-body code { font-family: var(--font-mono); font-size: .88em; background: var(--surface-ink-wash); padding: 1px 5px; border-radius: var(--radius-2xs); overflow-wrap: break-word; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.docs-body pre { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: var(--space-4); overflow-x: auto; margin: var(--space-3) 0 var(--space-4); white-space: pre-wrap; overflow-wrap: break-word; }
.docs-body pre code { background: none; padding: 0; font-size: var(--text-sm); line-height: 1.65; display: block; white-space: inherit; overflow-wrap: inherit; }
/* ASCII 图(架构图/状态机):保持等宽对齐不换行,横向滚动 + 两侧渐隐提示 */
.docs-body pre.fig {
  white-space: pre; overflow-wrap: normal;
  background-image:
    linear-gradient(to right, var(--surface) 25%, transparent),
    linear-gradient(to left, var(--surface) 25%, transparent),
    radial-gradient(farthest-side at 0 50%, var(--scroll-hint), transparent),
    radial-gradient(farthest-side at 100% 50%, var(--scroll-hint), transparent);
  background-position: left, right, left, right; background-repeat: no-repeat;
  background-size: 28px 100%, 28px 100%, 10px 100%, 10px 100%;
  background-attachment: local, local, scroll, scroll;
}
.docs-body pre.fig code { white-space: pre; overflow-wrap: normal; font-size: var(--text-xs); }
/* 标题里的数字术语(S0–S3 / Gate 0 / M0–M3):换等宽字形 */
.hnum { font-family: var(--font-mono); font-size: .86em; letter-spacing: 0; }
/* 表格横向滚动容器:窄屏保持整词,超出横滑 */
.table-scroll {
  overflow-x: auto; margin: var(--space-3) 0 var(--space-4);
  background-image:
    linear-gradient(to right, var(--bg-app) 25%, transparent),
    linear-gradient(to left, var(--bg-app) 25%, transparent),
    radial-gradient(farthest-side at 0 50%, var(--scroll-hint), transparent),
    radial-gradient(farthest-side at 100% 50%, var(--scroll-hint), transparent);
  background-position: left, right, left, right; background-repeat: no-repeat;
  background-size: 28px 100%, 28px 100%, 10px 100%, 10px 100%;
  background-attachment: local, local, scroll, scroll;
}
.table-scroll > table { margin: 0; }
.docs-body h2 .badge, .docs-body h3 .badge { vertical-align: 2px; margin-left: var(--space-2); }
.docs-body h3 .h3-note { font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 400; letter-spacing: .06em; color: var(--text-muted); }
.docs-note { border-left: 3px solid var(--active-ink); background: var(--active-ink-wash); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: var(--space-3) var(--space-4); margin: var(--space-3) 0 var(--space-4); }
.docs-note p { margin: 0; }
.back-top { display: inline-flex; margin-top: var(--space-6); }

/* ============ 滚动入场(data-reveal 子页 / data-pop 首页,同源)============ */
[data-reveal], [data-pop] {
  opacity: 0; transform: translateY(18px);
  transition: opacity .65s ease, transform .65s var(--ease-out);
}
[data-reveal].is-visible, [data-pop].in { opacity: 1; transform: none; }
[data-reveal][data-reveal-delay="1"] { transition-delay: 70ms; }
[data-reveal][data-reveal-delay="2"] { transition-delay: 140ms; }
[data-reveal][data-reveal-delay="3"] { transition-delay: 210ms; }

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
  .hero-ru { display: none; }
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero .map-card { max-width: 560px; margin: 0 auto; }
  .hero-right { margin-top: 8px; }
}
@media (max-width: 960px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  /* 平板宽度顶栏收进汉堡 */
  .menu-toggle { display: inline-flex; }
  .nav {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg-app);
    border-bottom: 2px solid var(--text-primary);
    padding: var(--space-2) 5vw var(--space-4);
    box-shadow: var(--shadow-card);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-base) var(--ease-out);
  }
  .nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-link { padding: var(--space-3) 0; border-bottom: 1px solid var(--line); font-size: var(--text-md); }
  .nav-link:last-child { border-bottom: none; }
  .go { display: none; }
  .docs-layout { grid-template-columns: 1fr; gap: var(--space-4); }
  .docs-toc { display: none; }
  .docs-toc-mobile { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); }
  .docs-toc-mobile summary { cursor: pointer; font-size: var(--text-md); font-weight: 500; color: var(--text-primary); list-style: none; display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
  .docs-toc-mobile summary::-webkit-details-marker { display: none; }
  .docs-toc-mobile summary::after { content: ""; flex: none; width: 8px; height: 8px; border-right: 2px solid var(--text-muted); border-bottom: 2px solid var(--text-muted); transform: rotate(45deg) translateY(-2px); transition: transform var(--duration-base) var(--ease-out); }
  .docs-toc-mobile[open] summary::after { transform: rotate(225deg) translateY(-2px); }
  .docs-toc-mobile nav { margin-top: var(--space-3); }
}
@media (max-width: 920px) {
  .tenets { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .versus { grid-template-columns: 1fr; }
  .versus .before { border-right: none; border-bottom: 2px solid var(--text-primary); }
  .status-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .sec, .section { padding: 56px 0; }
  .hero { padding: 40px 5vw 48px; }
  .hero-sub { font-size: 15px; margin-top: 30px; }
  .hero-cta a { padding: 12px 22px; font-size: 14px; }
  .sheet-inner { margin: 14px; padding: 40px 18px 24px; }
  .finale { padding: 72px 5vw 80px; }
  /* 移动端页脚:品牌通栏 + 链接组双列网格,元信息堆叠收紧 */
  .site-footer { padding: 32px 0 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 26px 24px; margin-bottom: 24px; }
  .footer-brand-col { grid-column: 1 / -1; }
  .footer-col h4 { margin-bottom: 10px; }
  .footer-col ul { gap: 4px; }
  .footer-col li { line-height: 1.5; }
  .footer-col a { font-size: 13px; }
  .footer-meta { flex-direction: column; align-items: flex-start; gap: 6px; font-size: 11.5px; line-height: 1.6; }
  .brand-lockup { padding: 12px 16px; font-size: 17px; }
  .lang-switch { padding: 0 10px; }
  .icon-btn { width: 44px; }
  .docs-hero { padding-block: var(--space-6) var(--space-4); }
  .docs-body h2 { font-size: var(--text-xl); }
  .docs-body table { font-size: var(--text-xs); }
  .docs-body .table-scroll > table { min-width: 600px; }
  .docs-body pre.fig, .docs-body pre.fig code { font-size: 11px; }
}
@media (max-width: 560px) {
  .tenets { grid-template-columns: 1fr; }
}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-pop] { opacity: 1 !important; transform: none !important; transition: none; }
  .beat { transition: none; }
  .chatlive { scroll-behavior: auto; }
  .marquee-track { animation: none; }
  .wave i, .typing i { animation: none; }
  .glyph.g4 { transition: none; }
}

body {
  background: var(--paper-raised);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  line-height: 1.7;
}
body::after { display: none; }
a { color: inherit; }
.container { max-width: 1600px; padding-inline: clamp(24px, 4.45vw, 80px); }
.site-header {
  min-height: 82px;
  background: color-mix(in srgb, var(--paper-raised) 94%, transparent);
  border-bottom: 1px solid var(--rule-soft);
  backdrop-filter: blur(18px);
}
.site-header .container { min-height: 82px; padding-inline: clamp(24px, 4.45vw, 80px); }
.brand-lockup {
  border: 0;
  padding: 0;
  gap: 13px;
  font-family: inherit;
  font-size: 30px;
  letter-spacing: -.06em;
}
.brand-lockup .brand-en { display: none; }
.brand-mark { width: 27px; height: 27px; border-radius: 7px; }
.nav { justify-content: center; flex: 0 1 auto; margin-inline: auto; gap: 31px; padding-inline: 34px; font-size: 12px; font-weight: 500; }
.nav-link { position: relative; }
.nav-link::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 1px; background: currentColor; transition: right var(--duration-base) var(--ease-out); }
.nav-link:hover::after, .nav-link[aria-current="page"]::after { right: 0; }
.header-actions { min-height: 82px; align-items: center; gap: 4px; }
.lang-switch { border: 0; padding: 0 9px; font-family: inherit; }
.icon-btn { width: 44px; height: 44px; border: 0; border-radius: 50%; }
.menu-toggle { border: 0; }
.go { min-height: 44px; margin-left: 5px; padding-inline: 17px; border: 1px solid var(--rule-soft); background: transparent; color: var(--ink); font-size: 12px; letter-spacing: .01em; }
.go:hover { background: var(--paper-soft); color: var(--ink); }
.docs-hero { padding-block: 88px 52px; border-bottom: 1px solid var(--rule-soft); }
.docs-hero .eyebrow { margin: 0 0 18px; color: var(--ink-muted); font-size: 10px; letter-spacing: .13em; }
.docs-hero .eyebrow::after { display: none; }
.docs-hero h1 { font-family: inherit; font-size: clamp(48px, 6vw, 88px); font-weight: 550; letter-spacing: -.065em; line-height: 1.08; }
.docs-lede { max-width: 680px; margin-top: 25px; color: var(--ink-secondary); font-size: 15px; }
.docs-layout { grid-template-columns: 230px minmax(0, 860px); justify-content: center; gap: clamp(52px, 7vw, 112px); padding-block: 58px 110px; }
.docs-toc { top: 112px; max-height: calc(100vh - 136px); border: 0; border-right: 1px solid var(--rule-soft); border-radius: 0; background: transparent; padding: 0 25px 24px 0; box-shadow: none; }
.docs-toc .toc-group { margin: 26px 0 8px; color: var(--ink-faint); font-size: 9px; letter-spacing: .11em; }
.docs-toc .toc-group:first-child { margin-top: 0; }
.docs-toc a { border: 0; border-left: 1px solid transparent; border-radius: 0; margin-left: -1px; padding: 7px 0 7px 15px; color: var(--ink-muted); font-size: 12px; }
.docs-toc a:hover, .docs-toc a.is-current { border-left-color: var(--ink); background: transparent; color: var(--ink); }
.docs-body { max-width: 860px; min-width: 0; }
.docs-body h2 { margin-top: 72px; padding-top: 0; border-top: 0; font-family: inherit; font-size: 34px; font-weight: 520; letter-spacing: -.045em; line-height: 1.3; }
.docs-body h2:first-child { margin-top: 0; }
.docs-body h3 { margin-top: 39px; font-family: inherit; font-size: 20px; font-weight: 550; letter-spacing: -.025em; }
.docs-body p, .docs-body li { color: var(--ink-secondary); font-size: 14px; line-height: 1.95; }
.docs-body strong { color: var(--ink); }
.docs-body table { border: 1px solid var(--rule-soft); border-collapse: collapse; background: transparent; box-shadow: none; }
.docs-body th { background: var(--paper-soft); color: var(--ink); font-size: 11px; letter-spacing: .04em; }
.docs-body th, .docs-body td { border: 1px solid var(--rule-soft); padding: 13px 15px; }
.docs-body pre, .docs-body pre.fig, .docs-note { border: 1px solid var(--rule-soft); border-radius: 0; background: var(--paper-soft); box-shadow: none; }
.legal { padding: 92px 0 118px; }
.legal .container { max-width: 980px; }
.legal h1 { max-width: 850px; font-family: inherit; font-size: clamp(44px, 5vw, 72px); font-weight: 550; letter-spacing: -.06em; line-height: 1.16; }
.legal .lede { margin-top: 24px; padding-bottom: 44px; border-bottom: 1px solid var(--rule-soft); color: var(--ink-muted); font-size: 12px; }
.legal h2 { margin-top: 58px; font-family: inherit; font-size: 26px; font-weight: 520; letter-spacing: -.035em; }
.legal h3 { font-family: inherit; font-weight: 550; }
.legal p, .legal li { color: var(--ink-secondary); font-size: 14px; line-height: 2; }
.legal table { border-collapse: collapse; box-shadow: none; }
.legal th, .legal td { border: 1px solid var(--rule-soft); padding: 14px 16px; }
.site-footer { margin-top: auto; padding: 58px 0 28px; border-top: 1px solid var(--rule-soft); background: var(--paper-soft); color: var(--ink); }
.footer-grid { gap: 48px; }
.footer-brand { font-family: inherit; font-size: 24px; font-weight: 550; letter-spacing: -.045em; }
.footer-brand-col p, .footer-col a, .footer-meta { color: var(--ink-muted); }
.footer-col h4 { color: var(--ink); font-size: 10px; letter-spacing: .1em; text-transform: uppercase; }
.footer-col a { font-size: 12px; }
.footer-meta { border-color: var(--rule-soft); font-size: 10px; }
@media (max-width: 1080px) {
  .site-header, .site-header .container, .header-actions { min-height: 76px; }
  .nav { top: 76px; margin: 0; padding: 12px clamp(24px, 4.45vw, 80px) 20px; border-bottom: 1px solid var(--rule-soft); background: var(--paper-raised); }
  .go { display: flex; }
  .menu-toggle { display: inline-flex; }
  .docs-layout { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .docs-toc { display: none; }
  .docs-toc-mobile { display: block; }
}
@media (max-width: 700px) {
  .container { padding-inline: 24px; }
  .site-header, .site-header .container, .header-actions { min-height: 70px; }
  .site-header .container { padding-inline: 24px; }
  .brand-lockup { font-size: 27px; }
  .brand-mark { display: none; }
  .go { display: none; }
  .docs-hero { padding-block: 55px 34px; }
  .docs-hero h1 { font-size: 48px; }
  .docs-layout { padding-block: 30px 75px; }
  .docs-toc-mobile { border: 1px solid var(--rule-soft); border-radius: 0; background: var(--paper-soft); }
  .docs-body h2 { margin-top: 56px; font-size: 28px; }
  .legal { padding: 58px 0 80px; }
  .legal h1 { font-size: 42px; }
  .site-footer { padding-top: 38px; }
}