/* =========================================================
   B-SiteAgent AI · 企业网站AI智能体  —  共享浅色 B 端设计系统
   与 goofuture.com 现有产品落地页（ai-vision-risk）风格对齐
   ========================================================= */

:root {
  --paper: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fafd;
  --ink: #0f1b33;
  --ink-soft: #5b6470;
  --muted: #8a93a3;
  --line: #e7ebf2;
  --line-soft: #eef1f6;
  --brand: #4f5dff;
  --brand-2: #2f7bff;
  --brand-dark: #3346d6;
  --teal: #00a99d;
  --teal-soft: #e6f7f5;
  --orange: #f0883e;
  --grad: linear-gradient(135deg, #5b6bff 0%, #3b8cff 100%);
  --grad-soft: linear-gradient(135deg, rgba(91,107,255,.12), rgba(59,140,255,.10));
  --shadow-sm: 0 6px 22px rgba(24,39,75,.06);
  --shadow: 0 14px 44px rgba(24,39,75,.10);
  --shadow-lg: 0 26px 80px rgba(24,39,75,.16);
  --radius: 16px;
  --radius-sm: 12px;
  --max: 1200px;
  --font-ui: "PingFang SC", "Microsoft YaHei UI", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --font-code: "SFMono-Regular", Consolas, Menlo, monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; background: var(--paper); }

body {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

:focus-visible { outline: 3px solid color-mix(in srgb, var(--brand) 60%, white); outline-offset: 3px; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; height: 68px; }
.brand { display: inline-flex; align-items: baseline; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -.02em; white-space: nowrap; }
.brand .b-mark { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand .b-sub { font-size: 13px; font-weight: 600; color: var(--ink-soft); }
.site-nav { display: flex; align-items: center; gap: 28px; margin-left: auto; font-size: 14px; font-weight: 600; }
.site-nav a { color: var(--ink-soft); transition: color .2s ease; }
.site-nav a:hover { color: var(--brand); }
.nav-cta {
  display: inline-flex; align-items: center; min-height: 40px; padding: 0 18px;
  border: 1px solid var(--brand); border-radius: 10px; color: #fff; background: var(--brand);
  font-weight: 700; cursor: pointer; transition: background .2s ease, transform .2s var(--ease);
}
.nav-cta:hover { background: var(--brand-dark); transform: translateY(-1px); }
.nav-toggle { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 24px; border-radius: 12px; font-weight: 700; font-size: 15px;
  cursor: pointer; border: 1px solid transparent; transition: all .2s var(--ease);
}
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 10px 26px rgba(79,93,255,.28); }
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-2px); box-shadow: 0 16px 34px rgba(79,93,255,.34); }
.btn-ghost { background: var(--surface); color: var(--brand); border-color: var(--brand); }
.btn-ghost:hover { background: var(--brand); color: #fff; transform: translateY(-2px); }
.btn-ink { background: var(--ink); color: #fff; }
.btn-ink:hover { background: #1c2c4d; transform: translateY(-2px); }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 14px; border-radius: 10px; }
.btn-block { width: 100%; }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 88px 0 84px; background:
  radial-gradient(circle at 82% 12%, rgba(91,107,255,.10), transparent 36%),
  radial-gradient(circle at 8% 88%, rgba(0,169,157,.08), transparent 30%); }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border: 1px solid rgba(79,93,255,.28); background: rgba(79,93,255,.07); border-radius: 999px; color: var(--brand); font-size: 13px; font-weight: 700; }
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); }
.hero h1 { font-size: clamp(38px, 5vw, 60px); line-height: 1.1; letter-spacing: -.03em; margin: 22px 0 18px; }
.hero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 18px; color: var(--ink-soft); max-width: 620px; margin: 0 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-assurance { display: flex; flex-wrap: wrap; gap: 0; margin: 26px 0 0; color: var(--muted); font-size: 13px; }
.hero-assurance span { display: inline-flex; align-items: center; }
.hero-assurance span:not(:last-child)::after { content: "·"; margin: 0 10px; color: var(--line); }

/* hero mock (browser score card) */
.mock { border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: var(--shadow-lg); overflow: hidden; }
.mock .bar { height: 40px; display: flex; align-items: center; gap: 7px; padding: 0 14px; border-bottom: 1px solid var(--line); background: var(--surface-soft); }
.mock .bar i { width: 9px; height: 9px; border-radius: 50%; background: #d4dae6; }
.mock .bar .url { margin-left: 10px; font-size: 12px; color: var(--muted); font-family: var(--font-code); }
.mock .screen { padding: 26px; }
.score-row { display: flex; align-items: center; justify-content: space-between; }
.score-row .label { font-size: 13px; color: var(--muted); }
.score-row .num { font-size: 44px; font-weight: 800; letter-spacing: -.02em; }
.score-row .num small { font-size: 18px; color: var(--muted); font-weight: 600; }
.ring { width: 92px; height: 92px; border-radius: 50%; background: conic-gradient(var(--teal) 0 76%, #e3e8f0 76%); position: relative; display: grid; place-items: center; }
.ring::after { content: ""; position: absolute; width: 70px; height: 70px; border-radius: 50%; background: var(--surface); }
.ring span { position: relative; z-index: 1; font-weight: 800; font-size: 12px; color: var(--teal); }
.mock .tags-line { font-size: 13px; color: var(--ink-soft); margin-top: 18px; }
.mock .bars { margin-top: 18px; display: grid; gap: 9px; }
.mock .bars div { height: 9px; border-radius: 20px; background: linear-gradient(90deg, var(--brand), var(--brand-2)); opacity: .85; }
.mock .bars div:nth-child(1) { width: 88%; }
.mock .bars div:nth-child(2) { width: 72%; }
.mock .bars div:nth-child(3) { width: 94%; }
.mock .bars div:nth-child(4) { width: 58%; }
.mock .bars div:nth-child(5) { width: 80%; }

/* ---------- Sections ---------- */
.section { padding: 92px 0; }
.section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 760px; margin: 0 auto 50px; text-align: center; }
.kicker { display: inline-block; color: var(--brand); font-size: 13px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 12px; }
.section-head h2 { font-size: clamp(28px, 3.4vw, 42px); line-height: 1.18; letter-spacing: -.02em; margin: 0 0 14px; }
.section-head p { color: var(--ink-soft); font-size: 17px; margin: 0; }
.section-head.left { text-align: left; margin-left: 0; }

/* ---------- Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }

.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--brand) 30%, var(--line)); }
.card .icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--grad-soft); color: var(--brand); font-weight: 800; font-size: 18px; margin-bottom: 16px; }
.card h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--ink-soft); font-size: 14.5px; line-height: 1.8; }
.card .more { display: inline-flex; align-items: center; gap: 6px; margin-top: 16px; color: var(--brand); font-weight: 700; font-size: 14px; }
.card .more:hover { gap: 10px; }

/* solution / product cards with number */
.sol-card { position: relative; min-height: 250px; display: flex; flex-direction: column; }
.sol-card .num { font-family: var(--font-code); font-size: 12px; font-weight: 800; color: var(--brand); letter-spacing: .08em; }
.sol-card h3 { font-size: 23px; margin: 10px 0 8px; }
.sol-card strong { color: var(--ink); font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.sol-card p { font-size: 14px; }
.sol-card .pill { align-self: flex-start; margin-top: auto; font-size: 12px; font-weight: 700; padding: 5px 11px; border-radius: 999px; }
.pill-free { background: var(--teal-soft); color: var(--teal); }
.pill-pay { background: rgba(79,93,255,.10); color: var(--brand); }
.pill-saas { background: #fff2e6; color: var(--orange); }

/* 四款产品卡片：各自主题色，提升辨识度
   用法：<a class="card sol-card sol-card--check"> …
   --c      主色（顶部色条 / 边框 / 悬停）
   --c-text 文字色（比主色更深，保证小字号对比度）
   --c-soft 卡片顶部淡色渐变
   --c-line 默认描边
   注意：仅作用于带修饰类的卡片，不影响 ai-sales 等子页的 .sol-card */
.sol-card--check,
.sol-card--kb,
.sol-card--support,
.sol-card--sales {
  overflow: hidden;
  background:
    linear-gradient(180deg, var(--c-soft) 0%, rgba(255,255,255,0) 62%),
    var(--surface);
  border-color: var(--c-line);
}
.sol-card--check::before,
.sol-card--kb::before,
.sol-card--support::before,
.sol-card--sales::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 0; height: 4px;
  background: linear-gradient(90deg, var(--c), color-mix(in srgb, var(--c) 40%, #ffffff));
}
.sol-card--check:hover,
.sol-card--kb:hover,
.sol-card--support:hover,
.sol-card--sales:hover {
  border-color: var(--c);
  box-shadow: var(--shadow);
  box-shadow: 0 18px 46px color-mix(in srgb, var(--c) 20%, transparent);
}
.sol-card--check .num,
.sol-card--kb .num,
.sol-card--support .num,
.sol-card--sales .num { color: var(--c-text); }
.sol-card--check .pill,
.sol-card--kb .pill,
.sol-card--support .pill,
.sol-card--sales .pill {
  background: color-mix(in srgb, var(--c) 13%, #ffffff);
  color: var(--c-text);
}

/* 01 检测 · 品牌蓝紫（发现问题） */
.sol-card--check {
  --c: #4f5dff;
  --c-text: #3a45d6;
  --c-soft: rgba(79,93,255,.09);
  --c-line: rgba(79,93,255,.22);
}
/* 02 知识库 · 青绿（沉淀数据） */
.sol-card--kb {
  --c: #00a99d;
  --c-text: #00756c;
  --c-soft: rgba(0,169,157,.10);
  --c-line: rgba(0,169,157,.24);
}
/* 03 客服 · 紫（智能服务） */
.sol-card--support {
  --c: #8a5cf6;
  --c-text: #6d3ee0;
  --c-soft: rgba(138,92,246,.10);
  --c-line: rgba(138,92,246,.24);
}
/* 04 导购 · 橙（转化成交） */
.sol-card--sales {
  --c: #f0883e;
  --c-text: #b5601a;
  --c-soft: rgba(240,136,62,.11);
  --c-line: rgba(240,136,62,.26);
}

/* ---------- Funnel / pipeline ---------- */
.funnel { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; position: relative; }
.funnel .step { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 22px 16px; text-align: center; position: relative; }
.funnel .step .snum { font-family: var(--font-code); color: var(--brand); font-weight: 800; font-size: 13px; }
.funnel .step strong { display: block; margin: 8px 0 4px; font-size: 17px; }
.funnel .step span { font-size: 13px; color: var(--muted); }
.funnel .step .arrow { position: absolute; right: -16px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: 18px; }
.funnel .step:last-child .arrow { display: none; }

/* ---------- Stats band ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.stats div { padding: 30px 22px; text-align: center; border-right: 1px solid var(--line); }
.stats div:last-child { border-right: 0; }
.stats strong { display: block; font-size: clamp(30px, 3vw, 42px); font-weight: 800; color: var(--brand); letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.stats span { color: var(--ink-soft); font-size: 14px; }

/* ---------- Tags ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 10px; }
.tag { padding: 8px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--line); font-size: 14px; color: var(--ink-soft); }
.tag.soft { background: var(--surface-soft); }

/* ---------- Table ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: var(--shadow-sm); }
.table { width: 100%; border-collapse: collapse; background: var(--surface); min-width: 680px; }
.table th, .table td { padding: 18px 20px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.table thead th { background: var(--ink); color: #fff; font-weight: 600; font-size: 14px; }
.table tbody tr:nth-child(even) { background: var(--surface-soft); }
.table .hl { color: var(--brand); font-weight: 700; }
.table td b { color: var(--ink); }

/* ---------- Two-column feature ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split.reverse > .split-media { order: -1; }
.feature-list { list-style: none; padding: 0; margin: 22px 0 0; }
.feature-list li { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line-soft); font-size: 15px; color: var(--ink-soft); }
.feature-list li::before { content: "✓"; color: var(--teal); font-weight: 800; flex: none; }
.feature-list li b { color: var(--ink); }

/* media panel */
.panel { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); padding: 26px; }
.panel .pl-title { font-weight: 700; font-size: 15px; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }
.panel .asset-row { display: flex; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--line-soft); font-size: 14px; }
.panel .asset-row:last-child { border-bottom: 0; }
.panel .asset-row b { color: var(--brand); font-variant-numeric: tabular-nums; }

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.price-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; display: flex; flex-direction: column; }
.price-card.featured { border-color: var(--brand); box-shadow: 0 16px 44px rgba(79,93,255,.16); position: relative; }
.price-card .flag { position: absolute; top: 16px; right: 16px; font-size: 11px; font-weight: 800; color: var(--brand); letter-spacing: .06em; }
.price-card h3 { margin: 0 0 6px; font-size: 22px; }
.price-card .desc { color: var(--ink-soft); font-size: 13px; margin: 0 0 18px; }
.price-card .amount { font-size: 30px; font-weight: 800; color: var(--brand); letter-spacing: -.02em; padding: 14px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.price-card ul { list-style: none; padding: 0; margin: 18px 0 24px; flex: 1; }
.price-card li { padding: 9px 0; font-size: 14px; color: var(--ink-soft); border-bottom: 1px solid var(--line-soft); display: flex; gap: 9px; }
.price-card li::before { content: "·"; color: var(--brand); font-weight: 800; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--ink); max-width: 920px; margin: 0 auto; }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 24px 56px 24px 0; font-size: 18px; font-weight: 650; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::before, .faq-list summary::after { content: ""; position: absolute; top: 50%; right: 10px; width: 16px; height: 2px; background: var(--ink); transition: transform .25s var(--ease); }
.faq-list summary::after { transform: rotate(90deg); }
.faq-list details[open] summary::after { transform: rotate(0); }
.faq-list details p { max-width: 74ch; margin: -4px 0 0; padding: 0 56px 26px 0; color: var(--ink-soft); line-height: 1.85; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--grad); color: #fff; border-radius: 24px; padding: 56px 48px; display: flex; align-items: center; justify-content: space-between; gap: 30px; box-shadow: var(--shadow-lg); }
.cta-band h2 { font-size: clamp(26px, 3vw, 36px); margin: 0 0 10px; line-height: 1.2; }
.cta-band p { margin: 0; color: rgba(255,255,255,.85); }
.cta-band .btn-ink { background: #fff; color: var(--brand-dark); }
.cta-band .btn-ink:hover { background: #eef0ff; }

/* ---------- Breadcrumb ---------- */
.crumb { padding: 18px 0 0; font-size: 13px; color: var(--muted); }
.crumb a { color: var(--ink-soft); }
.crumb a:hover { color: var(--brand); }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 44px 0 30px; background: var(--surface); margin-top: 40px; }
.footer .wrap { display: grid; gap: 18px; }
.footer .f-top { display: flex; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.footer .f-brand { font-weight: 800; font-size: 18px; }
.footer .f-brand small { display: block; font-weight: 500; color: var(--muted); font-size: 13px; margin-top: 6px; }
.footer .f-links { display: flex; gap: 26px; flex-wrap: wrap; font-size: 14px; color: var(--ink-soft); }
.footer .f-links a:hover { color: var(--brand); }
.footer .f-note { font-size: 12.5px; color: var(--muted); line-height: 1.8; border-top: 1px solid var(--line); padding-top: 18px; }
.footer .f-copy { font-size: 13px; color: var(--muted); }

/* ---------- Consult dialog ---------- */
.consult-dialog { border: 0; padding: 0; max-width: 380px; width: calc(100% - 32px); border-radius: 20px; background: var(--surface); box-shadow: var(--shadow-lg); color: var(--ink); }
.consult-dialog::backdrop { background: rgba(15,27,51,.5); backdrop-filter: blur(2px); }
.consult-dialog-panel { padding: 26px 26px 22px; text-align: center; position: relative; }
.consult-dialog-close { position: absolute; top: 14px; right: 14px; width: 34px; height: 34px; border: 0; border-radius: 50%; background: var(--surface-soft); cursor: pointer; display: grid; place-items: center; }
.consult-dialog-close svg { width: 16px; height: 16px; stroke: var(--ink-soft); stroke-width: 2; fill: none; }
.consult-dialog h3 { margin: 4px 0 8px; font-size: 20px; }
.consult-dialog p { margin: 0 0 16px; color: var(--ink-soft); font-size: 14px; }
.wecom-card-crop { width: 200px; margin: 0 auto; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.wecom-card-crop img { width: 100%; height: auto; }
.consult-dialog-hint { margin: 14px 0 0; font-size: 12.5px; color: var(--muted); }

html.is-dialog-open { overflow: hidden; }

/* ---------- Reveal animation (only when JS active) ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js [data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js [data-reveal] { opacity: 1; transform: none; } }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero .mock { max-width: 460px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .funnel { grid-template-columns: repeat(5, 1fr); }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats div:nth-child(2) { border-right: 0; }
  .stats div:nth-child(1), .stats div:nth-child(2) { border-bottom: 1px solid var(--line); }
  .funnel { grid-template-columns: 1fr; }
  .funnel .step .arrow { display: none; }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .split.reverse > .split-media { order: 0; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 36px 28px; }
  .site-nav { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; width: 42px; height: 38px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); cursor: pointer; flex-direction: column; gap: 5px; align-items: center; justify-content: center; }
  .nav-toggle span { width: 18px; height: 2px; background: var(--ink); border-radius: 2px; }
  .site-nav.is-open { display: flex; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--surface); border-bottom: 1px solid var(--line); padding: 8px 24px 16px; }
  .site-nav.is-open a, .site-nav.is-open .nav-cta { padding: 14px 0; border-radius: 0; border-left: 0; border-right: 0; border-top: 0; }
  .site-nav.is-open a { border-bottom: 1px solid var(--line); }
  .hero { padding: 56px 0; }
  .section-head h2 { font-size: 26px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .hero h1 { font-size: 34px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .cta-band { padding: 28px 22px; }
}

/* =========================================================
   AI 网站检测 / 报告页 / 全部结果页 的样式
   已统一迁移到  ai-check/ai-check.css （自包含，上传即生效）
   请勿在此重复定义，避免两处维护不一致。
   ========================================================= */