:root {
  /* assets/css 原变量（静态 HTML features.html 等用） */
  --bg: #0b0e1a;
  --bg-soft: #11152a;
  --surface: #161b33;
  --surface-2: #1d2342;
  --text: #e8ebf7;
  --muted: #9aa3c4;
  --line: #2a3157;
  --brand: #6d5efc;
  --brand-2: #a855f7;
  --brand-3: #22d3ee;
  --accent: #34d399;
  --warn: #fbbf24;
  --danger: #fb7185;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 50px -18px rgba(0, 0, 0, 0.6);
  --maxw: 1180px;

  /* 同步 src/style.css 变量（Vue 组件用）—— 两套并存避免 Vite 合并 CSS 时变量丢失 */
  --bg-deep: #0b0e1a;        /* 与 --bg 同色，统一深色背景 */
  --bg-surface: #11152a;     /* 与 --bg-soft 同色 */
  --bg-elevated: #161b33;    /* 与 --surface 同色 */
  --text-muted: #9aa3c4;     /* 与 --muted 同色 */
  --text-dim: #6b7390;       /* 比 muted 更暗 */
  --primary: #6d5efc;        /* 与 --brand 同色 */
  --primary-soft: rgba(109, 94, 252, 0.12);
  --cta: #fbbf24;            /* 与 --warn 同色（橙色 CTA） */
  --cta-soft: rgba(251, 191, 36, 0.14);
  --border: rgba(42, 49, 87, 0.6);  /* 与 --line 同色系 */
  --success: #34d399;        /* 与 --accent 同色 */
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-glow: 0 0 40px rgba(109, 94, 252, 0.18);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.grad {
  background: linear-gradient(100deg, var(--brand-3), var(--brand) 45%, var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-weight: 600; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap; font-size: 15px;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary {
  background: linear-gradient(100deg, var(--brand), var(--brand-2));
  color: #fff; box-shadow: 0 12px 30px -10px rgba(109, 94, 252, .7);
}
.btn-primary:hover { box-shadow: 0 16px 38px -10px rgba(109, 94, 252, .9); }
.btn-ghost { background: rgba(255,255,255,.06); color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-lg { padding: 15px 30px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ===== 导航 ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 14, 26, .72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-color: var(--line); background: rgba(11, 14, 26, .92); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff; font-weight: 800; box-shadow: 0 6px 16px -6px rgba(109,94,252,.8);
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a { color: var(--muted); font-size: 15px; white-space: nowrap; transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--brand-3); font-weight: 600; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }

/* ===== Hero ===== */
.hero { position: relative; padding: 110px 0 90px; overflow: hidden; }
.hero-bg {
  position: absolute; inset: -20% -10% auto -10%; height: 120%;
  background:
    radial-gradient(60% 50% at 20% 10%, rgba(109,94,252,.35), transparent 60%),
    radial-gradient(50% 50% at 85% 20%, rgba(168,85,247,.30), transparent 60%),
    radial-gradient(50% 50% at 60% 90%, rgba(34,211,238,.18), transparent 60%);
  filter: blur(10px); z-index: 0;
}
.hero-inner { position: relative; z-index: 1; }
.hero-copy { max-width: 820px; }
.pill {
  display: inline-block; padding: 7px 16px; border-radius: 999px; font-size: 13.5px;
  color: #cdd3f5; background: rgba(109,94,252,.14); border: 1px solid rgba(109,94,252,.35);
  margin-bottom: 22px;
}
.hero-title { font-size: clamp(34px, 5.4vw, 60px); line-height: 1.12; font-weight: 800; letter-spacing: -.5px; }
.hero-sub { margin: 24px 0 34px; font-size: clamp(16px, 2vw, 19px); color: var(--muted); max-width: 720px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 34px; margin-top: 46px; }
.trust-item { display: flex; flex-direction: column; }
.trust-item strong { font-size: 26px; background: linear-gradient(100deg,var(--brand-3),var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.trust-item span { font-size: 13.5px; color: var(--muted); }
.scroll-hint { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); color: var(--muted); font-size: 22px; animation: bounce 1.8s infinite; z-index: 1; }
@keyframes bounce { 0%,100%{ transform: translate(-50%,0);} 50%{ transform: translate(-50%,8px);} }

/* ===== 通用 section ===== */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.eyebrow { color: var(--brand-3); font-weight: 700; font-size: 14px; letter-spacing: 2px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(28px, 3.6vw, 42px); margin: 12px 0 14px; font-weight: 800; letter-spacing: -.5px; }
.section-head p { color: var(--muted); font-size: 17px; }

.grid { display: grid; gap: 22px; }
.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(--radius);
  padding: 26px; transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(109,94,252,.5); box-shadow: var(--shadow); }

/* ===== 信任背书 ===== */
.trust-strip { padding: 54px 0; border-bottom: 1px solid var(--line); background: linear-gradient(180deg, var(--bg), var(--bg-soft)); }
.trust-label { text-align: center; color: var(--muted); font-size: 14.5px; margin-bottom: 28px; }
.trust-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; text-align: center; }
.trust-stat strong { display: block; font-size: 40px; font-weight: 800; background: linear-gradient(100deg,var(--brand-3),var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.trust-stat span { color: var(--muted); font-size: 13.5px; }
.industry-tags { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 30px; }
.industry-tags span { background: var(--surface); border: 1px solid var(--line); padding: 7px 15px; border-radius: 999px; font-size: 13.5px; color: #cdd3f5; }

/* ===== 技术爆点（商家视角） ===== */
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.why-card { display: flex; gap: 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .25s, border-color .25s, box-shadow .25s; }
.why-card:hover { transform: translateY(-4px); border-color: rgba(109,94,252,.5); box-shadow: var(--shadow); }
.why-no { font-size: 30px; font-weight: 800; line-height: 1; flex: 0 0 auto; background: linear-gradient(135deg,var(--brand),var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.why-body h3 { font-size: 19px; margin-bottom: 12px; }
.why-worry { color: var(--muted); font-size: 14px; margin-bottom: 8px; padding-left: 14px; border-left: 3px solid var(--danger); }
.why-fix { color: #d4d9f2; font-size: 14.5px; padding-left: 14px; border-left: 3px solid var(--accent); }
.why-fix strong, .why-worry + .why-fix strong { color: var(--brand-3); }
.why-foot { text-align: center; margin-top: 36px; font-size: 18px; color: var(--muted); }
.why-foot strong { color: var(--text); }

/* ===== 核心引擎 ===== */
.engine-card .eng-icon { font-size: 30px; margin-bottom: 12px; }
.engine-card h3 { font-size: 19px; margin-bottom: 10px; }
.engine-card p { color: var(--muted); font-size: 14.5px; }
.engine-card code { background: var(--surface-2); border: 1px solid var(--line); padding: 1px 7px; border-radius: 6px; font-size: 12.5px; color: var(--brand-3); }

/* ===== 系统架构图 ===== */
.arch { max-width: 980px; margin: 0 auto; }
.arch-layer { display: flex; gap: 18px; align-items: stretch; }
.arch-label {
  flex: 0 0 152px; display: flex; flex-direction: column; justify-content: center;
  font-weight: 700; font-size: 16px; color: #e6e9fb; text-align: right;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.arch-label small { font-weight: 500; font-size: 12px; color: var(--brand-3); margin-top: 4px; }
.arch-boxes { flex: 1; display: flex; flex-wrap: wrap; gap: 12px; align-content: center; }
.arch-box {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 12px 16px; font-size: 14px; color: #d4d9f2;
  flex: 1 1 calc(33.333% - 12px); min-width: 150px;
}
.arch-box strong { color: var(--brand-3); }
.arch-box.arch-wide { flex-basis: 100%; color: var(--muted); font-size: 13.5px; background: var(--bg-soft); }
.arch-brain .arch-label { border-color: var(--brand); background: linear-gradient(135deg, rgba(109,94,252,.18), rgba(168,85,247,.12)); }
.arch-brain .arch-box { border-color: rgba(109,94,252,.4); }
.arch-conn { text-align: center; color: var(--brand); font-size: 22px; font-weight: 700; line-height: 1; margin: 4px 0; }
.arch-cap { max-width: 860px; margin: 26px auto 0; text-align: center; font-size: 14.5px; color: var(--muted); line-height: 1.7; }

/* ===== 智能体 vs 工作流 ===== */
.vs-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 980px; margin: 0 auto; }
.vs-col { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.vs-workflow { border-color: rgba(251,191,36,.35); }
.vs-agent { border-color: rgba(109,94,252,.5); background: linear-gradient(160deg, rgba(109,94,252,.12), rgba(168,85,247,.06)); }
.vs-head { font-size: 19px; font-weight: 800; margin-bottom: 18px; }
.vs-workflow .vs-head { color: var(--warn); }
.vs-agent .vs-head { color: var(--brand-3); }
.vs-list { list-style: none; }
.vs-list li { position: relative; padding-left: 26px; margin-bottom: 12px; font-size: 14.5px; color: #d4d9f2; }
.vs-workflow .vs-list li::before { content: "✕"; position: absolute; left: 0; top: 0; color: var(--danger); font-weight: 800; }
.vs-agent .vs-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.vs-agent .vs-list li strong { color: var(--brand-3); }

/* ===== 安全合规 ===== */
.sec-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.sec-card h3 { font-size: 19px; margin-bottom: 14px; }
.check-list { list-style: none; }
.check-list li { position: relative; padding-left: 26px; margin-bottom: 10px; font-size: 14.5px; color: #d4d9f2; }
.check-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }

/* ===== 部署集成 ===== */
.deploy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.deploy-card h3 { font-size: 19px; margin-bottom: 10px; }
.deploy-card p { color: var(--muted); font-size: 14.5px; }
.llm-block { margin-top: 36px; text-align: center; }
.llm-block h4 { font-size: 16px; color: var(--muted); font-weight: 600; margin-bottom: 16px; }
.llm-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.llm-chips span { background: var(--surface); border: 1px solid var(--line); padding: 8px 16px; border-radius: 999px; font-size: 14px; color: #d4d9f2; }

/* ===== 客户案例 ===== */
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
.case { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .25s, border-color .25s, box-shadow .25s; }
.case:hover { transform: translateY(-4px); border-color: rgba(109,94,252,.5); box-shadow: var(--shadow); }
.case-head { font-weight: 700; font-size: 16px; color: var(--brand-3); margin-bottom: 10px; }
.case-desc { color: var(--muted); font-size: 14.5px; margin-bottom: 18px; }
.case-metrics { display: flex; gap: 14px; border-top: 1px solid var(--line); padding-top: 16px; }
.case-metrics div { flex: 1; }
.case-metrics strong { display: block; font-size: 22px; font-weight: 800; background: linear-gradient(100deg,var(--brand-3),var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.case-metrics span { font-size: 12px; color: var(--muted); }

/* ===== 实施流程 ===== */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 22px; position: relative; }
.step-num { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; margin-bottom: 14px; background: linear-gradient(135deg,var(--brand),var(--brand-2)); color: #fff; font-weight: 800; font-size: 18px; }
.step h4 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--muted); font-size: 14.5px; }

/* ===== 定价 ===== */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.pricing.single { display: flex; justify-content: center; }
.pricing.single .price-card { max-width: 440px; width: 100%; }
.price-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; display: flex; flex-direction: column; position: relative; }
.price-card.featured { border-color: var(--brand); box-shadow: 0 18px 50px -18px rgba(109,94,252,.6); transform: translateY(-8px); }
.price-badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: linear-gradient(100deg,var(--brand),var(--brand-2)); color: #fff; font-size: 12.5px; font-weight: 700; padding: 5px 14px; border-radius: 999px; white-space: nowrap; }
.price-card h3 { font-size: 20px; margin-bottom: 12px; }
.price { margin-bottom: 4px; }
.price .amt { font-size: 26px; font-weight: 800; background: linear-gradient(100deg,var(--brand-3),var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.price-sub { color: var(--muted); font-size: 13.5px; margin-bottom: 18px; }
.price-unit { color: var(--muted); font-size: 14px; font-weight: 500; }

/* ===== 部署资源与架构优势 ===== */
.deploy-spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 44px; }
.spec-block { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.spec-block h4 { font-size: 17px; margin-bottom: 16px; color: #e6e9fb; }
.price-list { list-style: none; margin-bottom: 22px; flex: 1; }
.price-list li { position: relative; padding-left: 24px; margin-bottom: 10px; font-size: 14.5px; color: #d4d9f2; }
.price-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.btn-block { width: 100%; }
.price-note { text-align: center; color: var(--muted); font-size: 13.5px; margin-top: 28px; }

/* ===== 通用内联图标 ===== */
.svg-ico { display: inline-flex; align-items: center; justify-content: center; width: 1em; height: 1em; }
.svg-ico svg { width: 100%; height: 100%; display: block; }
/* 各页面卡片图标容器统一以品牌色描边 SVG 呈现 */
.eng-icon, .sec-icon, .ic-icon, .ind-icon {
  width: 40px; height: 40px; margin-bottom: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px; color: var(--brand-3);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.18);
}
.eng-icon svg, .sec-icon svg, .ic-icon svg, .ind-icon svg { width: 22px; height: 22px; display: block; }
/* 行内标签图标（来源/邮件/短信等） */
.inline-ico { display: inline-flex; vertical-align: -3px; margin-right: 6px; }
.inline-ico svg { width: 15px; height: 15px; display: block; }

/* ===== 痛点 ===== */
.pain-icon { width: 34px; height: 34px; margin-bottom: 12px; display: flex; align-items: center; justify-content: center; color: var(--brand-3); }
.pain-icon svg { width: 100%; height: 100%; display: block; }
.pain h3 { font-size: 19px; margin-bottom: 8px; }
.pain p { color: var(--muted); font-size: 15px; }

/* ===== 闭环 loop ===== */
.loop { display: flex; align-items: stretch; justify-content: center; flex-wrap: wrap; gap: 10px; }
.loop-step {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; width: 220px; text-align: center;
}
.loop-num {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 10px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; font-weight: 800;
}
.loop-step h4 { font-size: 17px; margin-bottom: 6px; }
.loop-step p { color: var(--muted); font-size: 13.5px; }
.loop-arrow { align-self: center; color: var(--brand); font-size: 24px; font-weight: 700; }

/* ===== 功能 feature ===== */
.feature { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin-bottom: 72px; }
.feature:last-child { margin-bottom: 0; }
.feature-rev .feature-text { order: 2; }
.feature-tag {
  display: inline-block; padding: 5px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: rgba(34,211,238,.12); color: var(--brand-3); border: 1px solid rgba(34,211,238,.3); margin-bottom: 14px;
}
.feature h3 { font-size: clamp(22px, 2.6vw, 30px); margin-bottom: 12px; font-weight: 800; }
.feature-lead { color: var(--text); font-size: 16px; margin-bottom: 16px; }
.pros { list-style: none; margin-bottom: 14px; }
.pros li { position: relative; padding-left: 26px; margin-bottom: 8px; font-size: 15px; color: #d4d9f2; }
.pros li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 800; }
.cons { font-size: 14px; color: var(--muted); background: rgba(251,191,36,.07); border-left: 3px solid var(--warn); padding: 12px 14px; border-radius: 0 10px 10px 0; }
.cons strong { color: var(--warn); }

/* 功能 visual mock */
.feature-visual { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; min-height: 240px; display: flex; align-items: center; }
.mock { width: 100%; font-size: 14px; }
.mock-row { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 10px; background: var(--surface-2); padding: 10px 12px; border-radius: 10px; }
.dot { width: 22px; height: 22px; border-radius: 50%; flex: 0 0 22px; display: grid; place-items: center; font-size: 11px; color: #fff; }
.dot.u { background: #475569; }
.dot.a { background: linear-gradient(135deg, var(--brand), var(--brand-2)); }
.dot.h { background: var(--accent); }

.mock-rag { text-align: left; }
.rag-q { font-weight: 700; margin-bottom: 8px; }
.rag-a { background: var(--surface-2); padding: 12px; border-radius: 10px; margin-bottom: 8px; }
.rag-src { font-size: 12.5px; color: var(--brand-3); }

.mock-channels { display: flex; flex-wrap: wrap; gap: 8px; align-content: center; }
.ch { background: var(--surface-2); border: 1px solid var(--line); padding: 7px 13px; border-radius: 999px; font-size: 13px; }
.ch-note { width: 100%; margin-top: 8px; color: var(--brand-3); font-size: 13px; text-align: center; }

.mock-reach .reach-row { background: var(--surface-2); padding: 9px 12px; border-radius: 10px; margin-bottom: 8px; }
.mock-reach .reach-track { color: var(--accent); font-size: 13px; margin-top: 4px; }

.mock-group .grp-head { font-weight: 700; margin-bottom: 10px; }

.mock-qr { display: flex; gap: 20px; align-items: center; }
.qr-box { background: #fff; color: #111; width: 110px; height: 110px; display: grid; place-items: center; border-radius: 12px; font-size: 11px; line-height: 1.3; text-align: center; font-weight: 700; letter-spacing: 2px; }
.qr-meta { font-size: 14px; color: #d4d9f2; }

.mock-cdp .cdp-name { font-weight: 700; margin-bottom: 10px; }
.cdp-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.cdp-tags span { background: var(--surface-2); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; font-size: 12.5px; }
.cdp-act { color: var(--accent); font-size: 14px; }

.mock-flow { text-align: center; }
.flow-node { display: inline-block; background: var(--surface-2); border: 1px solid var(--line); padding: 8px 12px; border-radius: 10px; font-size: 13px; margin: 4px; }
.flow-node.alt { border-color: var(--warn); color: var(--warn); }
.flow-node.ok { border-color: var(--accent); color: var(--accent); }
.flow-arrow { color: var(--brand); font-weight: 700; }
.flow-row2 { margin-top: 6px; }

.mock-content .ct-ver { background: var(--surface-2); padding: 9px 12px; border-radius: 10px; margin-bottom: 8px; font-size: 13.5px; }
.ct-note { color: var(--brand-3); font-size: 13px; text-align: center; margin-top: 4px; }

.mock-dash .dash-kpi { font-weight: 700; margin-bottom: 12px; }
.dash-bar { height: 12px; background: var(--surface-2); border-radius: 999px; overflow: hidden; margin-bottom: 8px; }
.dash-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--brand-3), var(--brand)); border-radius: 999px; }

/* ===== 对比 ===== */
.compare-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); }
.compare-table { width: 100%; border-collapse: collapse; min-width: 640px; background: var(--surface); }
.compare-table th, .compare-table td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14.5px; }
.compare-table thead th { background: var(--surface-2); font-weight: 700; font-size: 15px; }
.compare-table td:first-child { font-weight: 600; color: #d4d9f2; }
.compare-table .hl { background: rgba(109,94,252,.12); color: #fff; }
.compare-table thead .hl { background: linear-gradient(135deg, var(--brand), var(--brand-2)); }
.honest { margin-top: 50px; }
.honest h3 { text-align: center; font-size: 24px; margin-bottom: 28px; }
.honest h3 strong { color: var(--danger); }
.honest-card h4 { font-size: 17px; margin-bottom: 8px; color: #ffd9e0; }
.honest-card p { color: var(--muted); font-size: 14.5px; }

/* ===== 行业 ===== */
.industry h3 { font-size: 20px; margin-bottom: 12px; }
.ind-pain { font-size: 14.5px; color: var(--muted); margin-bottom: 8px; }
.ind-fix { font-size: 14.5px; color: #d4d9f2; }
.industry strong { color: var(--brand-3); }

/* ===== 数据 ===== */
.stats { margin-bottom: 50px; }
.stat { text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 16px; }
.stat strong { display: block; font-size: 46px; font-weight: 800; background: linear-gradient(100deg,var(--brand-3),var(--brand)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { color: var(--muted); font-size: 14px; }
.quote { max-width: 820px; margin: 0 auto; text-align: center; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.quote blockquote { font-size: 19px; font-style: italic; line-height: 1.8; }
.quote cite { display: block; margin-top: 16px; color: var(--muted); font-style: normal; font-size: 14px; }

/* ===== FAQ ===== */
.faq { max-width: 820px; margin: 0 auto; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; }
.faq summary { cursor: pointer; padding: 18px 22px; font-weight: 600; font-size: 16px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--brand); font-size: 22px; transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 22px 18px; color: var(--muted); font-size: 15px; }

/* ===== CTA ===== */
.cta { position: relative; padding: 100px 0; overflow: hidden; text-align: center; }
.cta-bg { position: absolute; inset: 0; background: radial-gradient(60% 80% at 50% 0%, rgba(109,94,252,.4), transparent 60%), radial-gradient(50% 60% at 80% 100%, rgba(168,85,247,.3), transparent 60%); }
.cta-inner { position: relative; z-index: 1; max-width: 760px; }
.cta h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; }
.cta p { color: var(--muted); font-size: 17px; margin: 16px 0 30px; }
.cta .hero-cta { justify-content: center; }
.cta-note { margin-top: 22px; color: var(--muted); font-size: 13.5px; }

/* ===== 页脚 ===== */
.footer { border-top: 1px solid var(--line); padding: 50px 0 36px; background: var(--bg-soft); }
.footer-inner { text-align: center; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; margin-bottom: 10px; }
.footer-desc { color: var(--muted); max-width: 560px; margin: 0 auto 20px; font-size: 14.5px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 22px; justify-content: center; margin-bottom: 18px; }
.footer-links a { color: var(--muted); font-size: 14.5px; transition: color .2s; }
.footer-links a:hover { color: var(--text); }
.footer-copy { color: var(--muted); font-size: 13px; opacity: .8; }

/* ===== 产品演示 ===== */
.demo-video { margin-top: 8px; }
.video-ph { position: relative; aspect-ratio: 16/9; border-radius: var(--radius); border: 1px solid var(--line); background: radial-gradient(120% 120% at 50% 0%, rgba(109,94,252,.25), rgba(13,15,28,.92)); display: grid; place-items: center; overflow: hidden; }
.play-btn { width: 74px; height: 74px; border-radius: 50%; border: none; background: linear-gradient(135deg,var(--brand),var(--brand-2)); color: #fff; font-size: 24px; padding-left: 6px; cursor: pointer; box-shadow: 0 10px 30px -8px rgba(109,94,252,.8); transition: transform .2s; }
.play-btn:hover { transform: scale(1.08); }
.video-cap { position: absolute; bottom: 16px; left: 0; right: 0; text-align: center; color: var(--muted); font-size: 13.5px; }
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 26px; }
.shot { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .25s, border-color .25s; }
.shot:hover { transform: translateY(-4px); border-color: rgba(109,94,252,.5); }
.shot-bar { display: flex; gap: 6px; padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line); }
.shot-bar span { width: 10px; height: 10px; border-radius: 50%; background: #3a3f5c; }
.shot-bar span:nth-child(1) { background: #ff5f57; }
.shot-bar span:nth-child(2) { background: #febc2e; }
.shot-bar span:nth-child(3) { background: #28c840; }
.shot-body { padding: 22px 18px; min-height: 92px; }
.shot-tag { display: inline-block; font-size: 12.5px; color: var(--brand-3); background: rgba(109,94,252,.12); padding: 4px 10px; border-radius: 999px; margin-bottom: 10px; }
.shot-body p { color: var(--muted); font-size: 14px; }

/* ===== 滚动揭示动画 ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===== 响应式 ===== */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .trust-stats { grid-template-columns: repeat(2, 1fr); gap: 26px 18px; }
  .why-grid { grid-template-columns: 1fr; }
  .shots { grid-template-columns: 1fr; }
  .deploy-spec { grid-template-columns: 1fr; }
  .hub { grid-template-columns: 1fr; }
  .relate-grid { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .sec-grid { grid-template-columns: 1fr; }
  .deploy-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .pricing { grid-template-columns: 1fr; max-width: 460px; margin: 0 auto; }
  .price-card.featured { transform: none; }
  .feature { grid-template-columns: 1fr; gap: 24px; }
  .feature-rev .feature-text { order: 0; }
  .feature-visual { min-height: 200px; }
}
@media (max-width: 760px) {
  .nav-links {
    position: fixed; top: 66px; right: 0; height: calc(100vh - 66px); width: 260px;
    flex-direction: column; align-items: flex-start; gap: 8px; padding: 24px;
    background: var(--bg-soft); border-left: 1px solid var(--line);
    transform: translateX(100%); transition: transform .3s ease; z-index: 60;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 16px; padding: 8px 0; }
  .nav-toggle { display: flex; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero { padding: 80px 0 60px; }
  .section { padding: 64px 0; }
  .loop { flex-direction: column; align-items: center; }
  .loop-arrow { transform: rotate(90deg); }
  .footer-links { gap: 14px; }
  .arch-layer { flex-direction: column; gap: 12px; }
  .arch-label { flex-basis: auto; text-align: left; flex-direction: row; gap: 8px; align-items: baseline; }
  .vs-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-trust { gap: 22px; }
  .btn-lg { padding: 13px 24px; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scroll-hint { animation: none; }
}

/* ===== 子页页眉 ===== */
.page-head { position: relative; padding: 128px 0 38px; overflow: hidden; background: radial-gradient(120% 120% at 82% 0%, rgba(109,94,252,.16), transparent 60%), var(--bg); border-bottom: 1px solid var(--line); }
.page-head .eyebrow { display: inline-block; margin-bottom: 12px; }
.page-head h1 { font-size: clamp(28px, 4.6vw, 44px); line-height: 1.15; margin-bottom: 14px; }
.page-head p { max-width: 760px; color: var(--muted); font-size: 16px; }

/* ===== 延伸阅读（SEO 内链） ===== */
.relate { background: var(--bg); padding: 56px 0 12px; }
.relate h3 { font-size: 19px; margin-bottom: 18px; color: #e6e9fb; }
.relate-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.relate-card { display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; color: var(--text); text-decoration: none; font-weight: 600; transition: transform .2s, border-color .2s; }
.relate-card span { display: block; color: var(--muted); font-weight: 400; font-size: 13.5px; margin-top: 6px; }
.relate-card:hover { transform: translateY(-3px); border-color: rgba(109,94,252,.5); }

/* ===== 注册页 ===== */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; margin-top: 8px; }
.contact-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; }
.contact-card h3 { font-size: 18px; margin-bottom: 18px; color: #e6e9fb; }
.contact-info li { list-style: none; padding: 12px 0; border-bottom: 1px dashed var(--line); color: var(--muted); font-size: 14.5px; }
.contact-info li:last-child { border-bottom: none; }
.contact-info b { color: var(--text); }
.contact-form .form-row { margin-bottom: 18px; }
.contact-form label { display: block; font-size: 13.5px; color: #d4d9f2; margin-bottom: 8px; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; color: var(--text); font-size: 14.5px; font-family: inherit; resize: vertical; }
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus { outline: none; border-color: var(--brand); }
.contact-form .btn-block { width: 100%; }
.form-note { color: var(--muted); font-size: 12.5px; margin-top: 12px; text-align: center; }

/* ===== 首页全站入口卡 ===== */
.hub { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 8px; }
.hub-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; text-decoration: none; color: var(--text); transition: transform .25s, border-color .25s; display: block; }
.hub-card:hover { transform: translateY(-4px); border-color: rgba(109,94,252,.5); }
.hub-card .hub-ico { width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; color: var(--brand-3); }
.hub-card .hub-ico svg { width: 100%; height: 100%; display: block; }
.hub-card h3 { font-size: 18px; margin: 12px 0 8px; color: #e6e9fb; }
.hub-card p { color: var(--muted); font-size: 14px; }
.hub-card .hub-go { display: inline-block; margin-top: 14px; color: var(--brand-3); font-weight: 600; font-size: 14px; }