/* ============================================================================
   Auto Data — 公开门户（/home 介绍页 + /agent 接入页）设计系统
   概念：绿色深色星空 · AI 原生数据采集平台
   ========================================================================== */

:root {
  /* 绿色调色板 */
  --c1: #15803d;
  --c2: #16a34a;
  --c3: #22c55e;
  --c4: #4ade80;

  --ink:   #f0fdf4;
  --dim:   rgba(160,240,185,.82);
  --faint: rgba(120,200,140,.5);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang SC", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1140px;
  --r:    8px;
  --r-lg: 14px;

  /* 兼容旧 agent.html 引用的旧变量（行内样式里有用到） */
  --amber-ink: var(--c2);
  --line:      rgba(34,197,94,.18);
  --line-soft: rgba(34,197,94,.10);
  --paper:     #020d05;
  --paper-sink:#010802;
  --surface:   rgba(5,25,10,.55);
  --ink-soft:  var(--dim);
  --ink-faint: var(--faint);
  --signal:    var(--c3);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: #020d05;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(ellipse 70% 55% at 20% 28%, rgba(21,128,61,.16) 0%, transparent 68%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(22,163,74,.12) 0%, transparent 64%),
    radial-gradient(ellipse 55% 50% at 72% 80%, rgba(34,197,94,.10) 0%, transparent 62%),
    linear-gradient(165deg, #020d05 0%, #031007 52%, #040e08 100%);
  background-attachment: fixed;
}

a { color: inherit; text-decoration: none; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

/* ============================================================
   导航
   ============================================================ */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 20px;
  padding: 16px 32px;
  background: rgba(2,13,5,.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(34,197,94,.12);
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800; letter-spacing: -0.02em; font-size: 18px;
  background: linear-gradient(92deg, var(--c1) 0%, var(--c2) 50%, #86efac 100%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
}
.nav-logo .mark { width: 28px; height: 28px; object-fit: contain; filter: brightness(0) invert(1); -webkit-text-fill-color: initial; }
.nav-spacer { flex: 1; }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a {
  font-size: 14px; color: var(--faint); transition: color .15s;
}
.nav-links a:hover { color: var(--ink); }
.nav .cta {
  padding: 8px 18px;
  background: linear-gradient(135deg, var(--c1), var(--c2));
  color: #fff; border-radius: var(--r); font-size: 14px; font-weight: 600;
  box-shadow: 0 4px 16px rgba(21,128,61,.35);
  transition: transform .2s, box-shadow .2s;
}
.nav .cta:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(34,197,94,.45); }
.lang-btn {
  font-family: var(--font-mono); font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  color: var(--faint); background: transparent;
  border: 1px solid rgba(34,197,94,.28); border-radius: var(--r);
  padding: 7px 11px; cursor: pointer; min-width: 46px;
  transition: border-color .2s, color .2s;
}
.lang-btn:hover { color: var(--ink); border-color: var(--c3); }
@media (max-width: 720px) { .nav-links { display: none; } .nav { padding: 14px 18px; } }

/* ============================================================
   通用按钮
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: var(--r); font-size: 15px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; font-family: inherit;
  transition: transform .22s cubic-bezier(0.2,.8,.2,1), background .2s, border-color .2s, box-shadow .2s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c1), var(--c2)); color: #fff;
  box-shadow: 0 6px 24px rgba(21,128,61,.36);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(34,197,94,.5); }
.btn-ghost {
  background: rgba(21,128,61,.06); color: var(--c3);
  border-color: rgba(74,222,128,.3);
}
.btn-ghost:hover { border-color: var(--c3); background: rgba(34,197,94,.14); transform: translateY(-2px); }
.btn .arr { transition: transform .2s; }
.btn:hover .arr { transform: translateX(3px); }

/* ============================================================
   /home 专区
   ============================================================ */

/* 星空 canvas（由 home.html 内联 JS 驱动）*/
#bg { position: fixed; inset: 0; z-index: -2; }
canvas#c { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* ── 满屏居中 Hero ── */
.home-hero {
  position: relative; z-index: 1;
  min-height: calc(100vh - 57px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: clamp(48px,8vw,88px) 0 0;
  overflow: hidden;
}
.home-hero > * { position: relative; z-index: 1; }

.home-hero-inner {
  max-width: 900px; padding: 0 28px;
  display: flex; flex-direction: column; align-items: center;
}

/* Tag 徽标 */
.tag {
  display: inline-flex; align-items: center;
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--c2); background: rgba(21,128,61,.10);
  border: 1px solid rgba(34,197,94,.28);
  border-radius: 999px; padding: 6px 16px; margin-bottom: 22px;
}
.tag .dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--c3); margin-right: 8px; vertical-align: 1px;
}
.tag .dot.live {
  background: var(--c3);
  box-shadow: 0 0 0 0 rgba(34,197,94,.5);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(34,197,94,.5); }
  70%  { box-shadow: 0 0 0 7px rgba(34,197,94,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.home-hero h1 {
  font-size: clamp(38px,6.6vw,76px);
  line-height: 1.04; letter-spacing: -0.035em; font-weight: 800;
  margin: 0; text-wrap: balance; color: var(--ink);
}
.home-hero h1 .grad,
.home-hero h1 .g {
  background: linear-gradient(100deg, var(--c1) 0%, var(--c2) 46%, #86efac 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.home-lead {
  margin: 20px 0 0;
  font-size: clamp(18px,2.6vw,26px); line-height: 1.3;
  color: var(--ink); font-weight: 600; text-wrap: balance; max-width: 720px;
}
.home-tagline {
  margin: 16px 0 0;
  font-size: clamp(14px,1.8vw,19px); color: var(--faint); font-weight: 500;
}
.home-cta { display: flex; gap: 14px; margin-top: 38px; flex-wrap: wrap; justify-content: center; }

/* ── 信号读数带 ── */
.readout {
  width: 100%; margin-top: clamp(48px,7vw,76px);
  border-top: 1px solid rgba(34,197,94,.12);
  border-bottom: 1px solid rgba(34,197,94,.12);
  background: rgba(21,128,61,.05);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.readout-track {
  display: inline-flex; white-space: nowrap; will-change: transform;
  animation: sig-scroll 46s linear infinite;
}
.readout:hover .readout-track { animation-play-state: paused; }
.sig {
  display: inline-flex; align-items: baseline; gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-mono); font-size: 12px;
  border-right: 1px solid rgba(34,197,94,.12);
}
.sig .src { color: var(--faint); font-weight: 500; }
.sig .kw  { color: var(--ink); font-weight: 600; }
.sig .n   { color: var(--c3); font-weight: 600; }
.sig .ms  { color: var(--c2); font-weight: 700; }
@keyframes sig-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* ── 下滑提示 ── */
.home-scroll {
  position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%);
  color: var(--faint); font-size: 12px; letter-spacing: .1em; z-index: 1;
}
.home-scroll svg {
  display: block; margin: 8px auto 0; width: 22px; height: 22px;
  animation: home-bounce 2s infinite;
}
@keyframes home-bounce {
  0%,100% { transform: translateY(0); }
  50%      { transform: translateY(7px); }
}

/* ── Showcase 卡片（水平交替） ── */
.eyebrow {
  position: relative; z-index: 1; text-align: center;
  font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
  color: var(--c4); margin: 32px 0 6px;
}
.showcase-wrap {
  position: relative; z-index: 1;
  max-width: 1000px; margin: 0 auto;
  padding: 0 24px 90px; display: flex; flex-direction: column; gap: 28px;
}
/* 旧版 .showcase / .reverse 兼容（agent.html 路径不用这些，但 home.html 旧 onclick 结构要保持） */
.showcase {
  text-decoration: none; color: inherit; display: block;
  cursor: pointer;
  opacity: 0; transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.16,1,.3,1), transform .7s cubic-bezier(.16,1,.3,1);
}
.showcase.in,
.showcase.reveal.in { opacity: 1; transform: none; }
.showcase-inner {
  display: flex; align-items: center; gap: 40px;
  padding: 38px 36px; position: relative; overflow: hidden;
  background: linear-gradient(160deg, rgba(5,25,10,.5), rgba(5,16,8,.55));
  border: 1px solid rgba(20,160,60,.14); border-radius: 22px;
  backdrop-filter: blur(12px);
  transition: transform .25s cubic-bezier(.16,1,.3,1), border-color .25s, box-shadow .25s;
}
.showcase-inner::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(21,128,61,.10) 0%, transparent 60%);
  opacity: 0; transition: opacity .25s;
}
.showcase:hover .showcase-inner {
  transform: translateY(-4px); border-color: rgba(34,197,94,.38);
  box-shadow: 0 24px 64px rgba(21,128,61,.12);
}
.showcase:hover .showcase-inner::before { opacity: 1; }
.showcase.reverse .showcase-inner { flex-direction: row-reverse; }

.showcase-text { flex: 1; min-width: 0; }
.showcase-badge {
  font-family: var(--font-mono); font-size: 11px; font-weight: 700;
  letter-spacing: .2em; text-transform: uppercase;
  background: linear-gradient(90deg, var(--c1), var(--c2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 10px;
}
.showcase-text h3 {
  font-size: clamp(20px,2.4vw,26px); font-weight: 700; letter-spacing: -.3px;
  margin-bottom: 8px; color: #fff;
}
.showcase-sub { font-size: 15px; font-weight: 500; color: rgba(100,220,140,.85); margin-bottom: 14px; }
.showcase-text > p:not(.showcase-sub) {
  font-size: 14px; line-height: 1.7; color: var(--dim); margin-bottom: 18px; max-width: 46ch;
}
.showcase-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.showcase-tags span {
  padding: 4px 12px; border-radius: 999px;
  background: rgba(21,128,61,.10); border: 1px solid rgba(20,160,60,.2);
  font-size: 11.5px; color: var(--dim); font-weight: 500;
  font-family: var(--font-mono);
}
.showcase-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; color: var(--c2);
  transition: transform .2s, color .2s;
}
.showcase-cta .arr { transition: transform .2s; }
.showcase:hover .showcase-cta { color: var(--c4); }
.showcase:hover .showcase-cta .arr { transform: translateX(4px); }
.showcase-visual {
  flex-shrink: 0; width: 160px; height: 160px;
  display: flex; align-items: center; justify-content: center;
  color: var(--c2); opacity: .85;
}
.showcase-visual svg { width: 88px; height: 88px; }

@media (max-width: 820px) {
  .showcase-inner,
  .showcase.reverse .showcase-inner { flex-direction: column; text-align: center; padding: 28px 22px; }
  .showcase-tags { justify-content: center; }
  .showcase-visual { width: 100px; height: 100px; }
  .showcase-visual svg { width: 64px; height: 64px; }
}
@media (max-width: 560px) {
  .home-cta { width: 100%; max-width: 320px; flex-direction: column; }
  .home-cta .btn { width: 100%; justify-content: center; }
}

/* ============================================================
   /agent 专区（复用 portal.css，在此提供深色版本的覆盖变量）
   ============================================================ */

/* 旧 agent.html 的 .section / .section-head / .hero / .hero-sub / .hero-cta */
.hero { padding: clamp(56px,9vw,116px) 0 clamp(48px,7vw,92px); position: relative; z-index: 1; }
.hero h1 {
  font-size: clamp(38px,6.4vw,74px); line-height: 1.02;
  letter-spacing: -0.035em; font-weight: 800;
  margin: 20px 0 0; text-wrap: balance; color: var(--ink);
}
.hero h1 .amber { color: var(--c3); }
.hero-sub {
  margin: 26px 0 0; max-width: 34ch;
  font-size: clamp(16px,1.7vw,19px); color: var(--dim); line-height: 1.62;
}
.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }

.section {
  padding: clamp(52px,8vw,104px) 0;
  border-top: 1px solid rgba(34,197,94,.12);
  position: relative; z-index: 1;
}
.section-head { max-width: 60ch; margin-bottom: clamp(32px,5vw,56px); }
.section-head h2 {
  font-size: clamp(26px,3.6vw,42px); letter-spacing: -0.03em; font-weight: 800;
  margin: 14px 0 0; line-height: 1.08; text-wrap: balance; color: var(--ink);
}
.section-head p { margin: 16px 0 0; color: var(--dim); max-width: 52ch; line-height: 1.65; }

.access-grid {
  display: grid; grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px,4vw,56px); align-items: start;
}
@media (max-width: 860px) { .access-grid { grid-template-columns: 1fr; gap: 36px; } }
.access-points { display: flex; flex-direction: column; gap: 22px; }
.point { display: grid; grid-template-columns: auto 1fr; gap: 14px; align-items: start; }
.point .idx { font-family: var(--font-mono); font-size: 13px; color: var(--c3); padding-top: 2px; }
.point h4 { margin: 0 0 4px; font-size: 16px; font-weight: 700; color: var(--ink); }
.point p { margin: 0; font-size: 14px; color: var(--dim); line-height: 1.5; }
.point p code { font-family: var(--font-mono); font-size: 12px; color: var(--c3); background: rgba(21,128,61,.12); padding: 1px 5px; border-radius: 4px; }

/* 代码块 */
.code {
  background: #010802;
  color: #d6e4d6;
  border: 1px solid rgba(34,197,94,.16);
  border-radius: var(--r-lg); overflow: hidden;
  font-family: var(--font-mono); font-size: 13px; line-height: 1.7;
  box-shadow: 0 18px 50px -28px rgba(0,0,0,.6);
  position: relative; z-index: 1;
}
.code-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 15px; border-bottom: 1px solid rgba(34,197,94,.12);
  font-size: 11.5px; letter-spacing: 0.08em; color: var(--faint);
}
.code-head .copy {
  cursor: pointer; color: var(--c3); background: rgba(21,128,61,.1);
  border: 1px solid rgba(34,197,94,.22); border-radius: 5px;
  padding: 4px 9px; font-family: var(--font-mono); font-size: 11px;
  transition: background .15s;
}
.code-head .copy:hover { background: rgba(21,128,61,.24); }
.code pre { margin: 0; padding: 16px 18px; overflow-x: auto; }
.code .c { color: rgba(100,200,120,.55); }
.code .k { color: var(--c3); }
.code .s { color: rgba(134,239,172,.9); }

/* 管线五段 */
.pipe { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; counter-reset: step; }
@media (max-width: 860px) { .pipe { grid-template-columns: repeat(2,1fr); gap: 22px 0; } }
@media (max-width: 480px) { .pipe { grid-template-columns: 1fr; } }
.stage { position: relative; padding: 22px 20px 22px 0; }
.stage:not(:last-child)::after {
  content: "→"; position: absolute; right: 14px; top: 24px;
  color: var(--c2); font-family: var(--font-mono); font-size: 15px;
}
@media (max-width: 860px) { .stage::after { display: none; } }
.stage .step { font-family: var(--font-mono); font-size: 12px; color: var(--faint); letter-spacing: .1em; }
.stage .step::before { counter-increment: step; content: counter(step, decimal-leading-zero) "  "; color: var(--c3); }
.stage h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; margin: 12px 0 6px; color: var(--ink); }
.stage p { font-size: 14px; color: var(--dim); margin: 0; line-height: 1.5; }

/* 数据源栅格 */
.sources { display: grid; grid-template-columns: repeat(auto-fit, minmax(232px,1fr)); gap: 14px; }
.source {
  padding: 18px; background: rgba(5,25,10,.5);
  border: 1px solid rgba(20,160,60,.14); border-radius: var(--r-lg);
  transition: border-color .2s, transform .2s;
}
.source:hover { border-color: var(--c3); transform: translateY(-2px); }
.source .name { font-weight: 700; font-size: 16px; letter-spacing: -0.01em; color: var(--ink); }
.source .cid { font-family: var(--font-mono); font-size: 11.5px; color: var(--c2); margin-top: 4px; }
.source .kinds { font-size: 13px; color: var(--dim); margin-top: 10px; line-height: 1.45; }

/* status legend */
.status-legend {
  display: flex; flex-wrap: wrap; gap: 10px 20px;
  font-family: var(--font-mono); font-size: 12.5px; margin-top: 18px;
}
.status-legend span b { color: var(--ink); font-weight: 700; }
.status-legend span { color: var(--dim); }

/* ep table */
.ep { border: 1px solid rgba(34,197,94,.14); border-radius: var(--r-lg); overflow: hidden; background: rgba(5,25,10,.5); }
.ep-row { display: grid; grid-template-columns: 190px 1fr; gap: 0; border-bottom: 1px solid rgba(34,197,94,.10); }
.ep-row:last-child { border-bottom: 0; }
.ep-row > div { padding: 14px 18px; }
.ep-row .plat { font-weight: 700; letter-spacing: -0.01em; border-right: 1px solid rgba(34,197,94,.10); color: var(--ink); }
.ep-row .plat small { display: block; font-family: var(--font-mono); font-size: 11px; color: var(--c2); font-weight: 500; margin-top: 3px; letter-spacing: 0.02em; }
.ep-row .body { color: var(--dim); font-size: 13.5px; }
.ep-row .body code { font-family: var(--font-mono); font-size: 12px; color: var(--ink); background: rgba(21,128,61,.12); padding: 2px 6px; border-radius: 4px; }
.ep-row .body .req { color: var(--c3); }
@media (max-width: 640px) { .ep-row { grid-template-columns: 1fr; } .ep-row .plat { border-right: 0; border-bottom: 1px solid rgba(34,197,94,.10); } }

/* notes cards */
.notes { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr)); gap: 16px; }
.note { padding: 18px; border: 1px solid rgba(34,197,94,.14); border-radius: var(--r-lg); background: rgba(5,25,10,.5); }
.note h4 { margin: 0 0 6px; font-size: 15px; font-weight: 700; color: var(--ink); }
.note p { margin: 0; font-size: 13.5px; color: var(--dim); line-height: 1.5; }
.note code { font-family: var(--font-mono); font-size: 12px; color: var(--c3); }

/* ============================================================
   /agent 新版（autovideo 风格 Step 1-5）
   ============================================================ */
.agent-page-wrap {
  max-width: 920px; margin: 0 auto;
  padding: 48px 28px 80px; position: relative; z-index: 1;
}
.agent-hero-section {
  text-align: center; padding: 40px 0 48px;
}
.agent-hero-section .badge {
  display: inline-block; font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c2);
  border: 1px solid rgba(34,197,94,.35); background: rgba(21,128,61,.08);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 22px;
}
.agent-hero-section h1 {
  font-size: clamp(30px,5.5vw,52px); line-height: 1.08;
  margin: 0 0 18px; font-weight: 700; color: var(--ink);
}
.agent-hero-section h1 .accent {
  background: linear-gradient(90deg, var(--c2), var(--c4));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.agent-hero-section p.lead {
  font-size: 17px; line-height: 1.7; color: var(--dim); max-width: 660px; margin: 0 auto;
}

.agent-section { margin-top: 56px; }
.agent-section > h2 {
  font-size: 22px; margin: 0 0 8px; font-weight: 700; color: var(--ink);
}
.agent-section > h2 .step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(21,128,61,.16); border: 1px solid rgba(34,197,94,.38);
  color: var(--c2); font-size: 15px; margin-right: 10px; vertical-align: middle;
}
.agent-section > p.sub {
  color: var(--dim); font-size: 15px; line-height: 1.7; margin: 0 0 18px;
}

/* card */
.card {
  background: rgba(5,25,10,.5);
  border: 1px solid rgba(20,160,60,.14); border-radius: 16px;
  padding: 22px 24px; margin-bottom: 16px;
}
.card h3 { font-size: 17px; margin: 0 0 10px; font-weight: 650; color: var(--ink); }
.card p { color: var(--dim); line-height: 1.7; margin: 0 0 10px; font-size: 14.5px; }
.card p:last-child { margin-bottom: 0; }
.card ol, .card ul { color: var(--dim); line-height: 1.8; padding-left: 1.3em; margin: 0 0 10px; font-size: 14.5px; }
.card code.inline {
  background: rgba(21,128,61,.14); border: 1px solid rgba(34,197,94,.2);
  border-radius: 5px; padding: 1px 6px;
  font-family: var(--font-mono); font-size: 0.88em; color: var(--c3); word-break: break-word;
}

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  .agent-page-wrap { padding: 32px 18px 60px; }
}

/* codeblock */
.codeblock {
  position: relative; background: #010802;
  border: 1px solid rgba(34,197,94,.16); border-radius: 12px;
  margin: 10px 0; overflow: hidden;
}
.codeblock pre {
  margin: 0; padding: 16px 20px; padding-right: 88px;
  overflow-x: auto; font-family: var(--font-mono);
  font-size: 13px; line-height: 1.65; color: #d6e4d6;
  white-space: pre-wrap; word-break: break-word;
}
.copy-btn {
  position: absolute; top: 10px; right: 10px;
  font-size: 11px; padding: 5px 12px; border-radius: 7px;
  border: 1px solid rgba(34,197,94,.28); background: rgba(21,128,61,.12);
  color: var(--c3); cursor: pointer; font-family: inherit;
  transition: background .15s, color .15s;
}
.copy-btn:hover { background: rgba(21,128,61,.26); color: #fff; }
.copy-btn.copied { background: rgba(34,197,94,.22); border-color: rgba(34,197,94,.5); color: var(--c4); }

/* btn-primary / btn-secondary for agent page */
.btn-primary-ag, .btn-secondary-ag {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  font-weight: 600; border-radius: 10px; padding: 11px 20px; font-size: 15px;
  cursor: pointer; border: 1px solid transparent;
  transition: transform .12s, box-shadow .15s, background .15s;
}
.btn-primary-ag {
  background: linear-gradient(135deg, var(--c1), var(--c2)); color: #fff;
  box-shadow: 0 6px 22px rgba(21,128,61,.36);
}
.btn-primary-ag:hover { transform: translateY(-1px); box-shadow: 0 10px 28px rgba(34,197,94,.45); }
.btn-secondary-ag {
  background: rgba(21,128,61,.10); border-color: rgba(34,197,94,.28); color: var(--c4);
}
.btn-secondary-ag:hover { background: rgba(21,128,61,.22); }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }

/* download CTA */
.download-cta {
  text-align: center;
  background: rgba(5,25,10,.6);
  border: 1px solid rgba(34,197,94,.2); border-radius: 20px;
  padding: 52px 28px;
  background-image: radial-gradient(600px 300px at 50% -20%, rgba(21,128,61,.18), transparent 70%);
}
.download-cta h2 { font-size: 26px; margin: 0 0 10px; color: var(--ink); }
.download-cta p { color: var(--dim); max-width: 540px; margin: 0 auto 24px; line-height: 1.7; }
.download-cta .btn-primary-ag { font-size: 17px; padding: 14px 32px; }

/* billing note */
.billing-note {
  display: flex; gap: 12px; align-items: flex-start;
  background: rgba(21,128,61,.08); border: 1px solid rgba(34,197,94,.22);
  border-radius: 12px; padding: 16px 18px; color: var(--dim); line-height: 1.7; font-size: 14px;
}
.billing-note .dot { color: var(--c3); font-size: 18px; line-height: 1.2; }

/* agent footer */
.agent-footer {
  margin-top: 56px; padding-top: 28px;
  border-top: 1px solid rgba(34,197,94,.12);
  text-align: center; color: var(--faint); font-size: 13px;
}

/* ============================================================
   页脚（两页共用）
   ============================================================ */
.footer {
  border-top: 1px solid rgba(34,197,94,.12);
  padding: 44px 0 56px; position: relative; z-index: 1;
}
.footer-grid { display: flex; justify-content: space-between; align-items: flex-start; gap: 28px; flex-wrap: wrap; }
.footer .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); font-size: 16px; }
.footer .brand .mark { width: 26px; height: 26px; object-fit: contain; filter: brightness(0) invert(1); }
.footer .meta { font-family: var(--font-mono); font-size: 12px; color: var(--faint); letter-spacing: 0.04em; margin-top: 8px; }
.footer .links { display: flex; gap: 22px; font-size: 14px; color: var(--faint); flex-wrap: wrap; }
.footer .links a:hover { color: var(--ink); }

/* ── 入场动画 ── */
.reveal { opacity: 0; transform: translateY(14px); }
.reveal.in { opacity: 1; transform: none; transition: opacity .7s ease, transform .7s cubic-bezier(0.2,.8,.2,1); }

/* ── 视觉隐藏（喂 AI-agent / 屏幕阅读器） ── */
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important; animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}