/* ===========================================================
   枝繁叶茂 · 官网设计系统
   Design Token / 组件 / 页面样式
   品牌主色：#ff6500（与 App 端一致）
   =========================================================== */

:root {
  /* —— 品牌色 —— */
  --brand: #ff6500;
  --brand-2: #ff9500;
  --brand-3: #ff3d00;
  --brand-grad: linear-gradient(135deg, #ffa726 0%, #ff6500 55%, #ff3d00 100%);
  --brand-soft: rgba(255, 101, 0, .12);
  --brand-line: rgba(255, 101, 0, .28);
  --cyan: #2fe0c5;
  --blue: #4a90e2;
  --green: #52c41a;

  /* —— 背景 —— */
  --bg: #070a11;
  --bg-2: #0b101a;
  --surface: #111827;
  --surface-2: #151d2e;
  --surface-3: #1b2438;
  --line: rgba(255, 255, 255, .09);
  --line-2: rgba(255, 255, 255, .06);

  /* —— 文字 —— */
  --text: #f3f6fb;
  --text-2: rgba(243, 246, 251, .70);
  --text-3: rgba(243, 246, 251, .45);
  --text-4: rgba(243, 246, 251, .28);

  /* —— 圆角 / 阴影 —— */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;
  --shadow-1: 0 4px 20px rgba(0, 0, 0, .35);
  --shadow-2: 0 18px 50px rgba(0, 0, 0, .45);
  --shadow-brand: 0 12px 34px rgba(255, 101, 0, .28);

  /* —— 尺寸 —— */
  --max: 1200px;
  --nav-h: 68px;

  --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
ul { list-style: none; }

/* 全局氛围背景 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(900px 520px at 78% -8%, rgba(255, 101, 0, .16), transparent 62%),
    radial-gradient(760px 460px at 8% 12%, rgba(47, 224, 197, .08), transparent 60%),
    radial-gradient(1000px 700px at 50% 108%, rgba(255, 101, 0, .07), transparent 65%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .5;
  background-image:
    linear-gradient(rgba(255, 255, 255, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .028) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
}

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; z-index: 1; }

/* ===================== 导航 ===================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; height: var(--nav-h);
  z-index: 100; display: flex; align-items: center;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(7, 10, 17, .82);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark { width: 34px; height: 34px; flex-shrink: 0; filter: drop-shadow(0 4px 12px rgba(255, 101, 0, .35)); }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-cn { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.logo-en { font-size: 10px; color: var(--text-3); letter-spacing: 1.6px; text-transform: uppercase; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu a {
  padding: 8px 14px; border-radius: var(--r-pill); font-size: 14px; color: var(--text-2);
  transition: color .2s, background .2s;
}
.nav-menu a:hover { color: var(--text); background: rgba(255, 255, 255, .06); }
.nav-menu a.is-active { color: var(--brand-2); background: var(--brand-soft); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--line); background: var(--surface); border-radius: 12px; cursor: pointer; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 16px; height: 1.6px; background: var(--text); position: relative; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 16px; height: 1.6px; background: var(--text); }
.nav-toggle span::before { top: -5px; } .nav-toggle span::after { top: 5px; }

/* ===================== 按钮 ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: var(--r-pill); font-size: 14px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .18s, box-shadow .25s, background .25s, opacity .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(.98); }
.btn-primary { background: var(--brand-grad); color: #fff; box-shadow: var(--shadow-brand); }
.btn-primary:hover { box-shadow: 0 16px 40px rgba(255, 101, 0, .42); }
.btn-ghost { background: rgba(255, 255, 255, .05); border-color: var(--line); color: var(--text); }
.btn-ghost:hover { background: rgba(255, 255, 255, .09); border-color: rgba(255, 255, 255, .2); }
.btn-outline-brand { background: transparent; border-color: var(--brand-line); color: var(--brand-2); }
.btn-outline-brand:hover { background: var(--brand-soft); }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 14px 30px; font-size: 15px; }

/* ===================== 通用区块 ===================== */
.section { padding: 96px 0; position: relative; z-index: 1; }
.section-sm { padding: 64px 0; }
.section-head { max-width: 720px; margin-bottom: 52px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 1.4px; color: var(--brand-2);
  background: var(--brand-soft); border: 1px solid var(--brand-line);
  padding: 5px 14px; border-radius: var(--r-pill); margin-bottom: 18px; text-transform: uppercase;
}
.eyebrow::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 8px var(--brand); }

.h1 { font-size: clamp(34px, 4.6vw, 58px); line-height: 1.2; font-weight: 800; letter-spacing: -.5px; }
.h2 { font-size: clamp(26px, 3vw, 38px); line-height: 1.3; font-weight: 750; letter-spacing: -.3px; }
.h3 { font-size: 20px; font-weight: 700; }
.lead { font-size: 16px; color: var(--text-2); line-height: 1.9; }
.muted { color: var(--text-3); }
.grad-text { background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line), transparent); }

/* 卡片 */
.card {
  background: linear-gradient(160deg, var(--surface-2), var(--surface));
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  transition: transform .3s, border-color .3s, box-shadow .3s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); border-color: var(--brand-line); box-shadow: var(--shadow-2); }

/* 滚动淡入 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.22,.7,.3,1), transform .7s cubic-bezier(.22,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; } .reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; } .reveal-d4 { transition-delay: .32s; }

/* ===================== Hero ===================== */
.hero { padding: calc(var(--nav-h) + 76px) 0 84px; position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.06fr .94fr; gap: 56px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 8px 6px 14px;
  border: 1px solid var(--line); border-radius: var(--r-pill); background: rgba(255, 255, 255, .04);
  font-size: 13px; color: var(--text-2); margin-bottom: 26px;
}
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); }
.hero-badge b { color: var(--brand-2); font-weight: 600; }
.hero-badge .pill { background: var(--brand-grad); color: #fff; font-size: 11px; padding: 3px 10px; border-radius: var(--r-pill); font-weight: 600; }

.hero h1 { font-size: clamp(36px, 5vw, 62px); line-height: 1.16; font-weight: 800; letter-spacing: -1px; }
.hero h1 em { font-style: normal; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { margin-top: 22px; font-size: 17px; color: var(--text-2); line-height: 1.9; max-width: 560px; }
.hero-cta { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }

.hero-notes { margin-top: 26px; display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--text-3); }
.hero-notes span { display: inline-flex; align-items: center; gap: 7px; }
.hero-notes svg { width: 15px; height: 15px; flex-shrink: 0; }

/* 手机 mock */
.phone-wrap { position: relative; display: flex; justify-content: center; }
.phone-glow { position: absolute; width: 460px; height: 460px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 101, 0, .30), transparent 62%); filter: blur(28px); top: 50%; left: 50%; transform: translate(-50%, -50%); }
.phone {
  position: relative; width: 300px; height: 606px; border-radius: 44px; padding: 11px;
  background: linear-gradient(160deg, #2a3142, #12161f);
  box-shadow: 0 40px 90px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .08) inset;
}
.phone-screen { width: 100%; height: 100%; border-radius: 34px; overflow: hidden; background: #f4f5f7; position: relative; }
.phone-notch { position: absolute; top: 11px; left: 50%; transform: translateX(-50%); width: 108px; height: 22px; border-radius: 0 0 14px 14px; background: #12161f; z-index: 5; }

/* 手机内 App UI */
.app { background: #f4f5f7; height: 100%; display: flex; flex-direction: column; font-size: 11px; color: #1a1a1a; }
.app-status { height: 34px; display: flex; align-items: flex-end; justify-content: space-between; padding: 0 16px 3px; font-size: 10px; font-weight: 600; background: var(--brand-grad); color: #fff; }
.app-bar { background: var(--brand-grad); padding: 6px 14px 12px; }
.app-search { background: #fff; border-radius: 20px; height: 30px; display: flex; align-items: center; padding: 0 6px 0 12px; gap: 6px; font-size: 11px; color: #999; }
.app-search .go { margin-left: auto; background: var(--brand-grad); color: #fff; border-radius: 16px; padding: 3px 10px; font-size: 10px; font-weight: 600; }
.app-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px 4px; padding: 12px 10px 10px; background: #fff; }
.app-grid i { display: block; width: 30px; height: 30px; border-radius: 10px; margin: 0 auto 3px; }
.app-grid span { display: block; text-align: center; font-size: 8.5px; color: #666; }
.app-body { flex: 1; background: #f4f5f7; padding: 8px 10px 10px; overflow: hidden; }
.app-sec { display: flex; align-items: center; justify-content: space-between; margin: 2px 2px 7px; }
.app-sec b { font-size: 11.5px; }
.app-sec em { font-style: normal; font-size: 9px; color: #999; }
.app-card { background: #fff; border-radius: 12px; padding: 10px; display: flex; gap: 9px; margin-bottom: 8px; box-shadow: 0 2px 8px rgba(23, 32, 51, .06); }
.app-avatar { width: 34px; height: 34px; border-radius: 9px; flex-shrink: 0; }
.app-card .t { font-size: 11px; font-weight: 600; line-height: 1.35; }
.app-card .tag { display: inline-block; font-size: 8px; color: #ff6500; background: #fff1e8; border-radius: 4px; padding: 1px 5px; margin-top: 4px; }
.app-card .sub { font-size: 8.5px; color: #aaa; margin-top: 4px; }
.app-card .money { margin-left: auto; text-align: right; color: #ff6500; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.app-card .money small { display: block; font-size: 8px; color: #bbb; font-weight: 400; margin-top: 2px; }
.app-tabbar { height: 52px; background: #fff; border-top: 1px solid #eee; display: flex; align-items: center; padding-bottom: 6px; }
.app-tabbar div { flex: 1; text-align: center; font-size: 8px; color: #999; }
.app-tabbar div.on { color: #ff6500; font-weight: 600; }
.app-tabbar div i { display: block; width: 18px; height: 18px; border-radius: 6px; margin: 0 auto 3px; background: #ddd; }
.app-tabbar div.on i { background: var(--brand-grad); }

/* 下载浮卡 */
.dl-card {
  position: absolute; right: -14px; bottom: 26px; width: 176px; padding: 14px;
  background: rgba(17, 24, 39, .92); backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: var(--r-md); box-shadow: var(--shadow-2);
  text-align: center; z-index: 3;
}
.dl-card .qr { width: 118px; height: 118px; margin: 0 auto 10px; border-radius: 10px; background: #fff; padding: 6px; }
.dl-card p { font-size: 11px; color: var(--text-3); line-height: 1.6; }
.dl-card b { display: block; font-size: 13px; margin-bottom: 2px; color: var(--text); }

/* ===================== 数据带 ===================== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.stat { background: var(--surface); padding: 30px 26px; }
.stat .num { font-size: 34px; font-weight: 800; letter-spacing: -.5px; background: var(--brand-grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.2; }
.stat .num small { font-size: 15px; font-weight: 700; }
.stat .lbl { font-size: 13px; color: var(--text-3); margin-top: 4px; }

/* ===================== 产品矩阵 ===================== */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card { display: flex; flex-direction: column; min-height: 300px; }
.prod-card .ico { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px; background: var(--brand-soft); border: 1px solid var(--brand-line); }
.prod-card .ico svg { width: 24px; height: 24px; }
.prod-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.prod-card p { font-size: 13.5px; color: var(--text-2); line-height: 1.85; }
.prod-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 7px; }
.prod-card li { font-size: 13px; color: var(--text-3); display: flex; gap: 8px; }
.prod-card li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--brand); margin-top: 9px; flex-shrink: 0; }
.prod-foot { margin-top: auto; padding-top: 20px; display: flex; align-items: center; justify-content: space-between; }
.status { font-size: 11.5px; padding: 4px 11px; border-radius: var(--r-pill); font-weight: 600; }
.status.live { background: rgba(82, 196, 26, .14); color: #7bd94a; border: 1px solid rgba(82, 196, 26, .3); }
.status.plan { background: rgba(255, 255, 255, .06); color: var(--text-3); border: 1px solid var(--line); }
.prod-card.is-plan { opacity: .78; }
.prod-card.is-plan .ico { background: rgba(255, 255, 255, .05); border-color: var(--line); }
.prod-card.is-plan:hover { opacity: 1; }
.link-arrow { font-size: 13px; color: var(--brand-2); display: inline-flex; align-items: center; gap: 5px; }
.link-arrow:hover { gap: 9px; }

/* ===================== 能力宫格 ===================== */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feat { padding: 30px 26px; }
.feat .ico { width: 44px; height: 44px; border-radius: 13px; background: var(--brand-grad); display: grid; place-items: center; margin-bottom: 18px; box-shadow: 0 8px 22px rgba(255, 101, 0, .25); }
.feat .ico svg { width: 22px; height: 22px; }
.feat h4 { font-size: 16.5px; font-weight: 700; margin-bottom: 8px; }
.feat p { font-size: 13.5px; color: var(--text-2); line-height: 1.85; }

/* ===================== 角色方案 ===================== */
.roles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.role { padding: 0; overflow: hidden; }
.role-top { padding: 30px 28px 24px; background: linear-gradient(160deg, rgba(255, 101, 0, .16), rgba(255, 101, 0, .02)); border-bottom: 1px solid var(--line); }
.role-top .who { font-size: 12px; color: var(--brand-2); letter-spacing: .6px; margin-bottom: 8px; }
.role-top h4 { font-size: 21px; font-weight: 750; }
.role-top .one { font-size: 13.5px; color: var(--text-2); margin-top: 8px; line-height: 1.8; }
.role-body { padding: 22px 28px 28px; }
.role-body li { display: flex; gap: 10px; font-size: 13.5px; color: var(--text-2); padding: 7px 0; }
.role-body li svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 5px; }

/* ===================== 安全合规 ===================== */
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.trust { padding: 26px 22px; text-align: center; }
.trust .ico { width: 42px; height: 42px; margin: 0 auto 14px; border-radius: 12px; background: rgba(47, 224, 197, .12); border: 1px solid rgba(47, 224, 197, .26); display: grid; place-items: center; }
.trust .ico svg { width: 21px; height: 21px; }
.trust h4 { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.trust p { font-size: 12.5px; color: var(--text-3); line-height: 1.75; }

/* ===================== 后台能力 ===================== */
.console { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.console-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.console-item { padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); display: flex; gap: 12px; align-items: flex-start; transition: border-color .25s, transform .25s; }
.console-item:hover { border-color: var(--brand-line); transform: translateY(-3px); }
.console-item b { display: block; font-size: 14px; font-weight: 650; }
.console-item span { font-size: 12px; color: var(--text-3); line-height: 1.7; }
.console-item .n { font-size: 11px; color: var(--brand-2); font-weight: 700; margin-top: 2px; }

.mock-window { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: var(--surface); box-shadow: var(--shadow-2); }
.mock-bar { height: 40px; background: var(--surface-2); border-bottom: 1px solid var(--line); display: flex; align-items: center; padding: 0 14px; gap: 6px; }
.mock-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255, 255, 255, .16); }
.mock-bar i:first-child { background: #ff5f57; } .mock-bar i:nth-child(2) { background: #febc2e; } .mock-bar i:nth-child(3) { background: #28c840; }
.mock-bar .url { margin-left: 10px; font-size: 11px; color: var(--text-4); background: rgba(255, 255, 255, .05); padding: 3px 12px; border-radius: 6px; }
.mock-body { display: grid; grid-template-columns: 150px 1fr; min-height: 320px; }
.mock-side { background: var(--surface-2); border-right: 1px solid var(--line); padding: 14px 12px; }
.mock-side .grp { font-size: 10px; color: var(--text-4); padding: 8px 10px 4px; letter-spacing: .5px; }
.mock-side .it { font-size: 12px; color: var(--text-3); padding: 7px 10px; border-radius: 8px; display: flex; align-items: center; gap: 8px; }
.mock-side .it.on { background: var(--brand-soft); color: var(--brand-2); }
.mock-side .it i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .6; }
.mock-main { padding: 16px; }
.mock-kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.mock-kpi { border: 1px solid var(--line); border-radius: 10px; padding: 12px; background: var(--surface-2); }
.mock-kpi .v { font-size: 20px; font-weight: 800; }
.mock-kpi .v.o { color: var(--brand-2); }
.mock-kpi .k { font-size: 10.5px; color: var(--text-3); margin-top: 2px; }
.mock-table { margin-top: 14px; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.mock-row { display: grid; grid-template-columns: 1.4fr 1fr .8fr .9fr; gap: 8px; padding: 9px 12px; font-size: 11px; color: var(--text-3); border-bottom: 1px solid var(--line-2); }
.mock-row:last-child { border-bottom: 0; }
.mock-row.head { background: var(--surface-2); color: var(--text-4); font-size: 10.5px; }
.mock-row .chip { font-size: 10px; padding: 1px 7px; border-radius: 5px; width: fit-content; }
.chip.ok { background: rgba(82, 196, 26, .16); color: #7bd94a; }
.chip.wait { background: rgba(255, 101, 0, .16); color: var(--brand-2); }
.chip.no { background: rgba(255, 77, 79, .16); color: #ff7875; }

/* ===================== 里程碑 ===================== */
.timeline { position: relative; padding-left: 26px; }
.timeline::before { content: ""; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 1px; background: linear-gradient(180deg, var(--brand), rgba(255, 101, 0, .1)); }
.tl-item { position: relative; padding-bottom: 30px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before { content: ""; position: absolute; left: -26px; top: 7px; width: 11px; height: 11px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(255, 101, 0, .16); }
.tl-item .y { font-size: 12px; color: var(--brand-2); font-weight: 700; letter-spacing: .5px; }
.tl-item h4 { font-size: 16px; font-weight: 700; margin: 3px 0 5px; }
.tl-item p { font-size: 13.5px; color: var(--text-3); line-height: 1.8; max-width: 640px; }

/* ===================== 价值观 ===================== */
.values { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.value { padding: 26px 24px; }
.value .n { font-size: 26px; font-weight: 800; color: rgba(255, 101, 0, .3); line-height: 1; }
.value h4 { font-size: 16px; margin: 10px 0 8px; font-weight: 700; }
.value p { font-size: 13px; color: var(--text-3); line-height: 1.8; }

/* ===================== CTA ===================== */
.cta-box {
  position: relative; overflow: hidden; border-radius: var(--r-xl);
  border: 1px solid var(--brand-line);
  background: radial-gradient(120% 140% at 12% 0%, rgba(255, 101, 0, .22), rgba(17, 24, 39, .85) 58%);
  padding: 56px 48px; text-align: center;
}
.cta-box::before { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; top: -160px; border-radius: 50%; background: radial-gradient(circle, rgba(255, 101, 0, .22), transparent 65%); }
.cta-box h2 { position: relative; }
.cta-box p { position: relative; margin-top: 14px; color: var(--text-2); font-size: 15.5px; }
.cta-box .btns { position: relative; margin-top: 30px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===================== 下载区 ===================== */
.dl-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.dl-list { display: flex; flex-direction: column; gap: 14px; margin-top: 26px; }
.dl-item { display: flex; align-items: center; gap: 16px; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); transition: border-color .25s; }
.dl-item:hover { border-color: var(--brand-line); }
.dl-item .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--surface-3); display: grid; place-items: center; flex-shrink: 0; }
.dl-item .ico svg { width: 22px; height: 22px; }
.dl-item b { font-size: 15px; }
.dl-item span { display: block; font-size: 12.5px; color: var(--text-3); }
.dl-item .btn { margin-left: auto; }

.qr-panel { text-align: center; padding: 32px; }
.qr-panel .qr { width: 190px; height: 190px; margin: 0 auto 16px; padding: 10px; background: #fff; border-radius: 16px; }
.qr-panel b { font-size: 15px; }
.qr-panel p { font-size: 12.5px; color: var(--text-3); margin-top: 6px; }

/* ===================== 表单 ===================== */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--text-2); }
.field label em { color: var(--brand-2); font-style: normal; }
.field input, .field select, .field textarea {
  background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 12px 14px; color: var(--text); outline: none; transition: border-color .2s, background .2s;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); background: var(--surface-3); }
.field input::placeholder, .field textarea::placeholder { color: var(--text-4); }
.form-tip { font-size: 12.5px; color: var(--text-3); margin-top: 16px; display: flex; gap: 8px; align-items: flex-start; }
.form-tip svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 3px; }

/* ===================== 联系信息 ===================== */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.contact-card { padding: 28px; text-align: center; }
.contact-card .ico { width: 44px; height: 44px; margin: 0 auto 14px; border-radius: 13px; background: var(--brand-soft); border: 1px solid var(--brand-line); display: grid; place-items: center; }
.contact-card .ico svg { width: 21px; height: 21px; }
.contact-card h4 { font-size: 15px; margin-bottom: 6px; }
.contact-card p { font-size: 14px; color: var(--text-2); }
.contact-card span { font-size: 12.5px; color: var(--text-3); display: block; margin-top: 4px; }

/* 合作类型 */
.co-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.co { padding: 26px; display: flex; gap: 16px; }
.co .ico { width: 40px; height: 40px; border-radius: 12px; background: var(--brand-grad); display: grid; place-items: center; flex-shrink: 0; }
.co .ico svg { width: 20px; height: 20px; }
.co h4 { font-size: 16px; margin-bottom: 6px; }
.co p { font-size: 13.5px; color: var(--text-2); line-height: 1.8; }
.co .tags { margin-top: 12px; display: flex; gap: 8px; flex-wrap: wrap; }
.co .tags i { font-style: normal; font-size: 11.5px; padding: 3px 10px; border-radius: var(--r-pill); border: 1px solid var(--line); color: var(--text-3); }

/* ===================== FAQ ===================== */
.faq { max-width: 860px; margin: 0 auto; }
.faq-item { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); margin-bottom: 12px; overflow: hidden; }
.faq-q { padding: 18px 22px; display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; font-size: 15px; font-weight: 600; user-select: none; }
.faq-q:hover { color: var(--brand-2); }
.faq-q i { width: 20px; height: 20px; position: relative; flex-shrink: 0; }
.faq-q i::before, .faq-q i::after { content: ""; position: absolute; background: var(--text-3); border-radius: 2px; transition: transform .3s; }
.faq-q i::before { width: 14px; height: 2px; top: 9px; left: 3px; }
.faq-q i::after { width: 2px; height: 14px; top: 3px; left: 9px; }
.faq-item.open .faq-q i::after { transform: rotate(90deg); opacity: 0; }
.faq-item.open .faq-q { color: var(--brand-2); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-a-inner { padding: 0 22px 20px; font-size: 14px; color: var(--text-2); line-height: 1.9; }

/* ===================== 页脚 ===================== */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 60px 0 28px; position: relative; z-index: 1; }
.footer-grid { display: grid; grid-template-columns: 1.6fr repeat(4, 1fr); gap: 36px; }
.footer .about p { font-size: 13px; color: var(--text-3); line-height: 1.85; margin-top: 16px; max-width: 300px; }
.footer h5 { font-size: 14px; margin-bottom: 16px; font-weight: 700; }
.footer ul { display: flex; flex-direction: column; gap: 10px; }
.footer ul a { font-size: 13px; color: var(--text-3); transition: color .2s; }
.footer ul a:hover { color: var(--brand-2); }
.footer-bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: var(--text-4); }
.footer-bottom a { color: var(--text-3); }

/* ===================== 页面头部（内页） ===================== */
.page-head { padding: calc(var(--nav-h) + 68px) 0 20px; position: relative; z-index: 1; }
.crumb { font-size: 12.5px; color: var(--text-4); margin-bottom: 16px; }
.crumb a { color: var(--text-3); }
.crumb a:hover { color: var(--brand-2); }
.crumb span { margin: 0 7px; }

/* 内页锚点导航 */
.subnav { position: sticky; top: var(--nav-h); z-index: 90; background: rgba(7, 10, 17, .86); backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
.subnav-inner { display: flex; gap: 4px; overflow-x: auto; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.subnav a { padding: 14px 14px; font-size: 13.5px; color: var(--text-3); white-space: nowrap; border-bottom: 2px solid transparent; }
.subnav a:hover { color: var(--text); }
.subnav a.is-active { color: var(--brand-2); border-bottom-color: var(--brand); }

/* 流程步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.step { padding: 26px 22px; position: relative; }
.step .n { width: 34px; height: 34px; border-radius: 11px; background: var(--brand-grad); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 15px; margin-bottom: 14px; box-shadow: 0 8px 20px rgba(255, 101, 0, .25); }
.step h4 { font-size: 15.5px; margin-bottom: 7px; }
.step p { font-size: 13px; color: var(--text-3); line-height: 1.8; }

/* 规格表 */
.spec-table { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 200px 1fr; border-bottom: 1px solid var(--line-2); }
.spec-row:last-child { border-bottom: 0; }
.spec-row .k { padding: 16px 22px; background: var(--surface-2); font-size: 13.5px; color: var(--text-2); font-weight: 600; }
.spec-row .v { padding: 16px 22px; font-size: 13.5px; color: var(--text-2); line-height: 1.85; }

/* Toast */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: rgba(17, 24, 39, .96); border: 1px solid var(--brand-line); color: var(--text);
  padding: 12px 22px; border-radius: var(--r-pill); font-size: 14px; z-index: 200;
  opacity: 0; pointer-events: none; transition: opacity .28s, transform .28s; box-shadow: var(--shadow-2);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ===================== 响应式 ===================== */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 48px; }
  .hero-sub { max-width: none; }
  .prod-grid, .feat-grid, .roles { grid-template-columns: repeat(2, 1fr); }
  .stats, .trust-grid, .values { grid-template-columns: repeat(2, 1fr); }
  .console { grid-template-columns: 1fr; gap: 34px; }
  .dl-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; top: var(--nav-h); left: 12px; right: 12px;
    background: rgba(11, 16, 26, .97); backdrop-filter: blur(18px);
    border: 1px solid var(--line); border-radius: var(--r-lg); padding: 10px; box-shadow: var(--shadow-2);
  }
  .nav-menu.open a { padding: 12px 14px; }
  .nav-toggle { display: flex; }
  .nav-actions .btn-ghost { display: none; }
  .section { padding: 64px 0; }
  .prod-grid, .feat-grid, .roles, .co-grid, .contact-grid { grid-template-columns: 1fr; }
  .console-list { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .phone { width: 268px; height: 542px; }
  .dl-card { right: 50%; transform: translateX(50%); bottom: -18px; }
  .cta-box { padding: 38px 24px; }
  .mock-body { grid-template-columns: 1fr; }
  .mock-side { display: none; }
  .spec-row { grid-template-columns: 1fr; }
  .spec-row .k { background: var(--surface-3); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-cta .btn { flex: 1; }
}

@media (max-width: 480px) {
  .stats, .trust-grid, .values { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}