/* ==========================================================
   小芽待办 · 官网原型 v2
   设计语言与 App 对齐：
   - 冷白底 #F7F8FB + slate 文字 #29364B
   - 五模块各一低饱和主题色（待办雾蓝 / 日程靛蓝 / 打卡抹茶 / 目标香芋紫 / 我的暖棕）
   - 组件只用 --mc / --mc-soft / --mc-ink
   ========================================================== */
@font-face {
  font-family: 'Barlow Semi Condensed';
  font-weight: 600;
  font-style: normal;
  font-display: swap;
  src: url('barlow-semi-condensed-600.woff2') format('woff2');
}
:root {
  --bg: #F7F8FB;
  --surface: #FFFFFF;
  --surface-top: #FCFCFE;
  --ink: #29364B;
  --ink2: #3A4860;
  --muted: #97A2B5;
  --muted2: #B0BAC9;
  --line: #EAF0F5;
  --line-soft: #F3F7FB;
  --brand: #4F7590;          /* 待办雾蓝 · ink 档，按钮主色与 App 保存按钮一致 */
  --brand-soft: #EAF2F8;
  --brand-ink: #4F7590;
  --on-accent: #22303F;
  --danger: #B4707A;
  --danger-soft: #F8EFF1;
  --r: 16px;
  --r-lg: 26px;
  --max: 1140px;
  --shadow-s: 0 1px 2px rgba(41, 54, 75, .04), 0 10px 30px -18px rgba(41, 54, 75, .18);
  --shadow-m: 0 2px 6px rgba(41, 54, 75, .05), 0 28px 56px -28px rgba(41, 54, 75, .25);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --num: 'Barlow Semi Condensed', 'Arial Narrow', var(--font);
}
/* 模块色 */
.m-todo   { --mc: #6E9CBB; --mc-soft: #EAF2F8; --mc-ink: #4F7590; }
.m-sched  { --mc: #788BD1; --mc-soft: #EDF0FC; --mc-ink: #5A6CAF; }
.m-habit  { --mc: #83BBA9; --mc-soft: #F0F8F4; --mc-ink: #5A8F7F; }
.m-goal   { --mc: #A18AC2; --mc-soft: #F2EDF8; --mc-ink: #7C679C; }
.m-me     { --mc: #B19A83; --mc-soft: #F3EEE8; --mc-ink: #8A7360; }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: var(--font); font-size: 16px; line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.25; letter-spacing: -.01em; font-weight: 700; }
p { margin: 0; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section--tight { padding: 64px 0; }
.center { text-align: center; }
.num { font-family: var(--num); font-weight: 600; letter-spacing: .01em; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: .04em;
  color: var(--mc-ink, var(--brand-ink));
  background: var(--mc-soft, var(--brand-soft));
  border: 1px solid #dfe9f1;
  padding: 5px 12px; border-radius: 999px;
}
.eyebrow i { width: 6px; height: 6px; border-radius: 50%; background: var(--mc, var(--brand)); display: block; }

.h1 { font-size: clamp(36px, 5vw, 58px); letter-spacing: -.02em; }
.h2 { font-size: clamp(27px, 3.5vw, 40px); letter-spacing: -.02em; }
.h3 { font-size: 20px; }
.lead { font-size: clamp(15.5px, 1.4vw, 17.5px); color: var(--ink2); line-height: 1.8; }
.muted { color: var(--muted); }
.small { font-size: 14px; }
.h1 em { font-style: normal; color: var(--brand); position: relative; white-space: nowrap; z-index: 0; }
.h1 em::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .05em; height: .34em;
  background: #DCEAF3; z-index: -1; border-radius: 3px;
}

/* ---------- 顶部导航 ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(247, 248, 251, .88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 26px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; }
.brand img { width: 32px; height: 32px; border-radius: 9px; display: block; }
.brand small { display: block; font-weight: 500; font-size: 11px; color: var(--muted); letter-spacing: .06em; line-height: 1; margin-top: 2px; }
.nav-links { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-links a { padding: 8px 12px; border-radius: 9px; font-size: 15px; color: var(--ink2); transition: background .18s, color .18s; }
.nav-links a:hover { background: var(--brand-soft); color: var(--brand-ink); }
.nav-links a[aria-current="page"] { color: var(--brand-ink); font-weight: 600; }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-toggle {
  display: none; margin-left: auto; width: 40px; height: 40px; border: 1px solid var(--line);
  background: #fff; border-radius: 10px; cursor: pointer; color: var(--ink2); font-size: 18px; line-height: 1;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 42px; padding: 0 18px; border-radius: 11px;
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; white-space: nowrap;
  transition: transform .16s, background .18s, box-shadow .18s, border-color .18s;
}
.btn-lg { height: 50px; padding: 0 26px; font-size: 16px; border-radius: 13px; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 18px -10px rgba(79, 117, 144, .8); }
.btn-primary:hover { background: #436982; transform: translateY(-1px); }
.btn-ghost { background: #fff; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: #d3dde8; background: var(--line-soft); transform: translateY(-1px); }
.btn-link { color: var(--brand-ink); font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; gap: 6px; }
.btn-link:hover { gap: 10px; }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 88px; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; right: -160px; top: -140px; width: 580px; height: 580px;
  background: radial-gradient(circle at 50% 50%, #E3EEF6 0%, rgba(227, 238, 246, 0) 68%); z-index: 0;
}
.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; }
.hero-copy .h1 { margin: 20px 0 22px; }
.hero-copy .lead { max-width: 520px; }
.hero-actions { display: flex; gap: 12px; margin: 30px 0 24px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 18px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; font-size: 13.5px; color: var(--muted); }
.hero-badges li { display: flex; align-items: center; gap: 7px; }
.hero-badges li::before {
  content: ""; width: 15px; height: 15px; border-radius: 50%; flex: none;
  background: #fff url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4.2 8.4l2.4 2.4 5-5.2' fill='none' stroke='%234F7590' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/12px no-repeat;
  border: 1px solid var(--line);
}
.hero-visual { display: flex; justify-content: center; }

/* 手机模型 · 待办屏 */
.phone {
  position: relative; width: 316px; background: #fff; border: 1px solid #E3E9F1;
  border-radius: 36px; padding: 18px 18px 0; box-shadow: var(--shadow-m);
}
.phone::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%); top: 9px;
  width: 56px; height: 5px; border-radius: 99px; background: #E8EDF3;
}
.ph-head { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; }
.ph-head .t { font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.ph-head .d { font-size: 11px; color: var(--muted); margin-top: 2px; }
.ph-ring {
  width: 40px; height: 40px; border-radius: 50%; flex: none;
  background: conic-gradient(var(--brand) calc(var(--p, 0) * 1%), #E4EBF2 0);
  display: grid; place-items: center; position: relative;
}
.ph-ring::before { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: #fff; }
.ph-ring span { position: relative; font-size: 11px; color: var(--brand-ink); }
.ph-ring span b { font-weight: 600; }
.ph-seg { display: flex; gap: 4px; margin: 14px 0 12px; background: var(--line-soft); border-radius: 11px; padding: 4px; }
.ph-seg span { flex: 1; text-align: center; font-size: 11.5px; color: var(--muted); padding: 5px 0; border-radius: 8px; }
.ph-seg span.on { background: #fff; color: var(--brand-ink); font-weight: 600; box-shadow: 0 1px 3px rgba(41, 54, 75, .08); }
.ph-tasks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ph-tasks li {
  display: flex; align-items: flex-start; gap: 10px; padding: 12px 12px;
  border: 1px solid var(--line); border-radius: 14px; background: #fff;
  font-size: 13.5px; line-height: 1.45;
}
.ph-tasks .ck {
  width: 18px; height: 18px; border-radius: 50%; flex: none; margin-top: 1px;
  border: 1.7px solid #CBD5E1; background: #fff; display: grid; place-items: center;
}
.ph-tasks li.done .ck { background: var(--mc, var(--brand)); border-color: var(--mc, var(--brand)); }
.ph-tasks li.done .ck::after {
  content: ""; width: 8px; height: 4px; border-left: 1.8px solid #fff; border-bottom: 1.8px solid #fff;
  transform: rotate(-45deg) translate(1px, -1px);
}
.ph-tasks li.done .tx { color: var(--muted2); text-decoration: line-through; text-decoration-color: #CBD5E1; }
.ph-tasks .tx { flex: 1; }
.ph-tasks .tx i { display: block; font-style: normal; font-size: 11px; color: var(--muted); margin-top: 3px; }
.ph-tasks .tx i.late { color: var(--danger); }
.chip { display: inline-flex; align-items: center; gap: 4px; height: 18px; padding: 0 7px; border-radius: 6px; font-size: 10.5px; font-weight: 600; }
.chip::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--mc, var(--brand)); }
.ph-hint {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  margin: 10px 0 0; padding: 10px 12px; border: 1px dashed #D8E2EC; border-radius: 12px;
  font-size: 11.5px; color: var(--muted); background: var(--line-soft);
}
.ph-hint b { color: var(--brand-ink); font-weight: 600; }
.ph-hint .go { color: var(--brand-ink); font-weight: 600; flex: none; }
/* 悬浮胶囊导航 */
.ph-dock {
  position: relative; z-index: 2; margin: 14px -6px 0; padding: 8px 6px 12px;
  background: linear-gradient(180deg, rgba(255,255,255,0), rgba(255,255,255,.94) 38%);
  border-radius: 0 0 34px 34px;
}
.ph-dock ul {
  list-style: none; margin: 0; padding: 6px; display: flex; gap: 2px;
  background: rgba(255,255,255,.96); border: 1px solid #EDF1F6; border-radius: 999px;
  box-shadow: 0 10px 30px rgba(41, 54, 75, .12);
}
.ph-dock li { flex: 1; text-align: center; font-size: 10px; color: #8D9CB2; padding: 5px 0 4px; border-radius: 999px; }
.ph-dock li svg { width: 17px; height: 17px; display: block; margin: 0 auto 2px; }
.ph-dock li.on { background: var(--mc-soft); color: var(--mc-ink); font-weight: 600; }
.floating {
  position: absolute; right: -44px; bottom: 96px; background: #fff; border: 1px solid var(--line);
  border-radius: 14px; padding: 11px 14px; font-size: 12.5px; color: var(--ink2);
  box-shadow: var(--shadow-s); max-width: 200px; line-height: 1.5;
}
.floating b { color: var(--mc-ink, var(--brand-ink)); }

/* ---------- 通用卡片 / 网格 ---------- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r);
  padding: 26px 24px; box-shadow: var(--shadow-s);
  transition: transform .22s, box-shadow .22s, border-color .22s;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); border-color: #DCE5EE; }
.card h3 { font-size: 17.5px; margin-bottom: 8px; }
.card p { font-size: 14.5px; color: var(--muted); line-height: 1.75; }
.icon-box {
  width: 42px; height: 42px; border-radius: 12px; background: var(--mc-soft, var(--brand-soft));
  display: grid; place-items: center; margin-bottom: 16px; color: var(--mc-ink, var(--brand-ink));
  border: 1px solid #E2EBF2;
}
.icon-box svg { width: 22px; height: 22px; }
.sec-head { max-width: 680px; margin: 0 auto 48px; text-align: center; }
.sec-head .h2 { margin: 16px 0 14px; }
.sec-head p { color: var(--muted); font-size: 16px; }
.sec-head--left { margin: 0 0 44px; text-align: left; max-width: 640px; }

/* 双栏分栏 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split--proj { grid-template-columns: .92fr 1.08fr; }
.split--sync { grid-template-columns: .85fr 1.15fr; align-items: start; }
.split--faq { grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }

/* 投影图 */
.proj { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 26px 22px; box-shadow: var(--shadow-s); }
.proj svg { display: block; width: 100%; height: auto; }
.proj .cap { text-align: center; font-size: 12.5px; color: var(--muted); margin-top: 10px; }

/* 模块卡 */
.mod-card { position: relative; overflow: hidden; }
.mod-card::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--mc); border-radius: 4px 0 0 4px; }
.mod-card h3 { display: flex; align-items: center; gap: 8px; }
.mod-card h3 .tagchip { font-size: 11px; font-weight: 600; color: var(--mc-ink); background: var(--mc-soft); padding: 2px 8px; border-radius: 6px; }
.mod-card ul { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 7px; font-size: 13.5px; color: var(--ink2); }
.mod-card ul li { display: flex; gap: 8px; }
.mod-card ul li::before { content: "·"; color: var(--mc-ink); font-weight: 700; }

/* 快速记录演示 */
.composer-demo { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 24px; box-shadow: var(--shadow-s); }
.composer-input {
  display: flex; align-items: center; gap: 10px; padding: 14px 16px;
  border: 1.6px solid var(--brand); border-radius: 14px; font-size: 15px; color: var(--ink);
  background: #fff;
}
.composer-input .mic {
  width: 30px; height: 30px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand-ink);
}
.composer-input .mic svg { width: 15px; height: 15px; }
.parsed { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; font-size: 12.5px; }
.parsed .chip { height: 24px; padding: 0 10px; border-radius: 8px; font-size: 12px; background: var(--mc-soft); color: var(--mc-ink); }
.parsed .chip::before { width: 5px; height: 5px; }
.caret { display: inline-block; width: 1.5px; height: 1.1em; background: var(--brand); vertical-align: text-bottom; margin-left: 2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* 多端 */
.platform-card .p-top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.platform-card .p-ico { width: 44px; height: 44px; border-radius: 12px; background: var(--mc-soft, var(--brand-soft)); display: grid; place-items: center; flex: none; border: 1px solid #E2EBF2; font-size: 20px; }
.platform-card .p-top b { font-size: 16px; display: block; }
.platform-card .p-top span { font-size: 12.5px; color: var(--muted); }
.platform-card ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 7px; font-size: 13.5px; color: var(--ink2); }
.platform-card ul li { display: flex; gap: 8px; }
.platform-card ul li::before { content: "·"; color: var(--mc-ink, var(--brand-ink)); font-weight: 700; }

/* 承诺 */
.promise { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 52px; display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; box-shadow: var(--shadow-s); }
.promise h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
.promise > div > p { color: var(--ink2); font-size: 15px; }
.checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.checks li { display: flex; gap: 12px; font-size: 15px; color: var(--ink); line-height: 1.6; }
.checks li::before {
  content: ""; width: 22px; height: 22px; flex: none; border-radius: 7px; margin-top: 1px;
  background: var(--brand-soft) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4.2 8.4l2.4 2.4 5-5.2' fill='none' stroke='%234F7590' stroke-width='1.9' stroke-linecap='round' stroke-linejoin='round'/></svg>") center/13px no-repeat;
  border: 1px solid #D8E5EF;
}
.checks li b { font-weight: 700; }

/* CTA 条 */
.cta-bar {
  background: #22303F; color: #fff; border-radius: var(--r-lg); padding: 52px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
  background-image: radial-gradient(circle at 88% 16%, rgba(110, 156, 187, .45), transparent 46%),
    radial-gradient(circle at 12% 92%, rgba(161, 138, 194, .28), transparent 42%);
}
.cta-bar h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 10px; color: #fff; }
.cta-bar p { color: #AAB8C9; font-size: 15px; max-width: 480px; }
.cta-bar .btn-primary { background: #fff; color: #22303F; box-shadow: none; }
.cta-bar .btn-primary:hover { background: var(--brand-soft); }
.cta-bar .btn-ghost { background: transparent; border-color: rgba(255, 255, 255, .3); color: #fff; }
.cta-bar .btn-ghost:hover { background: rgba(255, 255, 255, .1); }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: #fff; padding: 56px 0 28px; margin-top: 40px; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand p { font-size: 13.5px; color: var(--muted); max-width: 300px; margin-top: 14px; line-height: 1.8; }
.footer h4 { font-size: 13px; letter-spacing: .06em; color: var(--muted); font-weight: 600; margin-bottom: 14px; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer ul a { font-size: 14px; color: var(--ink2); }
.footer ul a:hover { color: var(--brand-ink); text-decoration: underline; text-underline-offset: 3px; }
.footer-legal { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--muted); line-height: 2; }
.footer-legal a { margin-right: 6px; }
.footer-legal a:hover { color: var(--brand-ink); }
.footer-legal .row { display: flex; flex-wrap: wrap; gap: 0 18px; }
.legal-note {
  margin-top: 10px; padding: 10px 12px; background: var(--line-soft); border: 1px dashed #D8E2EC;
  border-radius: 8px; font-size: 12px; color: var(--muted);
}

/* ---------- 子页面 ---------- */
.page-head { padding: 64px 0 40px; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, #EFF3F8, var(--bg)); }
.page-head .h1 { font-size: clamp(30px, 4vw, 46px); margin: 14px 0 14px; }
.page-head p { color: var(--muted); max-width: 640px; font-size: 16px; }
.crumb { font-size: 13px; color: var(--muted); }
.crumb a:hover { color: var(--brand-ink); }

.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; padding: 56px 0; border-bottom: 1px solid var(--line); }
.feature-row:last-of-type { border-bottom: 0; }
.feature-row h3 { font-size: 24px; margin-bottom: 12px; letter-spacing: -.01em; }
.feature-row p { color: var(--muted); font-size: 15px; margin-bottom: 16px; }
.feature-row ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 9px; font-size: 14.5px; color: var(--ink2); }
.feature-row ul li { display: flex; gap: 9px; }
.feature-row ul li::before { content: "·"; color: var(--mc-ink, var(--brand-ink)); font-weight: 700; }
.feature-row .visual {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 24px; box-shadow: var(--shadow-s); display: grid; align-content: center; gap: 10px;
}
.feature-row:nth-child(even) .visual { order: -1; }
.mini-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; font-size: 13.5px; background: #fff; }
.mini-row .k { width: 8px; height: 8px; border-radius: 50%; background: var(--mc, var(--brand)); flex: none; }
.mini-row .k--gray { background: #CBD5E1; }
.mini-row .t { flex: 1; }
.mini-row .m { color: var(--muted); font-size: 12px; }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; font-size: 14.5px; background: #fff; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.tbl th, .tbl td { text-align: left; padding: 13px 18px; border-bottom: 1px solid var(--line); }
.tbl th { background: var(--line-soft); font-size: 13px; color: var(--ink2); font-weight: 600; letter-spacing: .02em; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl td:first-child { color: var(--muted); width: 190px; }
.yes { color: #5A8F7F; font-weight: 600; }
.no { color: var(--muted2); }

/* 下载 / 同步页 */
.dl-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: start; }
.dl-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px; box-shadow: var(--shadow-s); }
.platform { display: flex; align-items: center; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.platform:last-child { border-bottom: 0; }
.platform .p-ico { width: 44px; height: 44px; border-radius: 12px; background: var(--line-soft); display: grid; place-items: center; flex: none; border: 1px solid var(--line); font-size: 18px; }
.platform .p-main { flex: 1; min-width: 0; }
.platform .p-main b { display: block; font-size: 15px; }
.platform .p-main span { font-size: 12.5px; color: var(--muted); overflow-wrap: anywhere; }
.qr { width: 168px; height: 168px; border-radius: 14px; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; margin: 0 auto 12px; }
.qr-label { text-align: center; font-size: 12.5px; color: var(--muted); }
.sync-steps { counter-reset: s; display: grid; gap: 18px; }
.sync-step { position: relative; padding-left: 62px; }
.sync-step::before {
  counter-increment: s; content: "0" counter(s);
  position: absolute; left: 0; top: 2px; width: 44px; height: 44px; border-radius: 12px;
  background: var(--brand-soft); color: var(--brand-ink); display: grid; place-items: center;
  font-size: 14px; font-weight: 700; letter-spacing: .04em; border: 1px solid #D8E5EF;
}
.sync-step h3 { font-size: 18px; margin-bottom: 6px; }
.sync-step p { color: var(--muted); font-size: 14.5px; }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 18px 2px; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 15.5px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 18px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin-top: 12px; color: var(--muted); font-size: 14.5px; max-width: 760px; }

/* 法务长文 */
.doc { display: grid; grid-template-columns: 220px 1fr; gap: 56px; align-items: start; padding: 56px 0 80px; }
.doc-toc { position: sticky; top: 92px; font-size: 13.5px; }
.doc-toc b { display: block; font-size: 12px; letter-spacing: .06em; color: var(--muted); margin-bottom: 12px; }
.doc-toc ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; counter-reset: toc; }
.doc-toc a { color: var(--ink2); display: block; padding-left: 26px; position: relative; }
.doc-toc a::before { counter-increment: toc; content: counter(toc) "."; position: absolute; left: 0; color: var(--muted); font-size: 12px; top: 1px; }
.doc-toc a:hover { color: var(--brand-ink); }
.doc-body { max-width: 760px; }
.doc-body h2 { font-size: 19px; margin: 40px 0 12px; scroll-margin-top: 90px; }
.doc-body h2:first-of-type { margin-top: 0; }
.doc-body p, .doc-body li { font-size: 14.8px; color: var(--ink2); line-height: 1.9; }
.doc-body p + p { margin-top: 12px; }
.doc-body ul, .doc-body ol { padding-left: 22px; margin: 10px 0; }
.doc-body li { margin-bottom: 6px; }
.doc-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-bottom: 28px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.notice {
  background: #FFF9EC; border: 1px solid #F0E3C4; border-radius: 12px; padding: 14px 16px;
  font-size: 13.5px; color: #7A5A1E; margin-bottom: 28px; line-height: 1.75;
}
.hl {
  background: var(--brand-soft); border: 1px solid #D8E5EF; border-radius: 10px;
  padding: 12px 14px; margin: 10px 0; font-size: 14px;
}
.hl b { color: var(--brand-ink); }

/* 待填占位标记 */
.ph { color: #B4453C; background: #FDF4F3; padding: 1px 6px; border-radius: 5px; font-size: .94em; }

/* 动效 */
html.js .reveal { opacity: 0; transform: translateY(18px); }
html.js .reveal.in { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s cubic-bezier(.2, .7, .3, 1); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .split, .split--proj, .split--sync, .split--faq { grid-template-columns: 1fr; gap: 32px; }
  .hero-visual { order: 2; }
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .promise { grid-template-columns: 1fr; gap: 28px; padding: 36px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .doc { grid-template-columns: 1fr; gap: 28px; }
  .doc-toc { position: static; }
  .dl-grid { grid-template-columns: 1fr; }
  .feature-row { grid-template-columns: 1fr; gap: 28px; padding: 40px 0; }
  .feature-row:nth-child(even) .visual { order: 0; }
  .cta-bar { flex-direction: column; align-items: flex-start; padding: 36px; }
  .floating { right: -6px; }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; position: absolute; left: 0; right: 0; top: 68px; background: #fff; border-bottom: 1px solid var(--line); padding: 10px 16px 16px; flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 11px 12px; }
  .nav-toggle { display: block; }
  .nav-cta .btn-ghost { display: none; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .floating { right: -6px; bottom: 80px; }
  .hero { padding: 48px 0 72px; }
  .footer-top { grid-template-columns: 1fr; }
  .cta-bar { padding: 28px; }
  .promise { padding: 28px; }
}