/* ==========================================================================
   厦门米一家智能科技有限公司 · 官网样式表 v4（图片主导 · 精简版）
   assets/style.css
   --------------------------------------------------------------------------
   设计原则：
   1) 图片主导：版面以整幅图 / 图卡为主，可见文字压到最短；
   2) 长文本进 <details class="fold"> 折叠块——视觉收起，但仍在 HTML 源码中，
      生成式引擎照常可抓取（GEO 资产不丢）；
   3) 移动优先，零 JavaScript，正文静态可见；
   4) 主色取自公司 LOGO：蓝 #1668e3 → 紫 #7a3ff2 渐变，点缀青 #19c8d8。
   ========================================================================== */

/* ---------- 1. 变量 ---------- */
:root{
  --ink:#101a2c;
  --ink-2:#25314a;
  --sub:#5a6579;
  --sub-2:#7d879c;
  --line:#e3e9f2;
  --line-2:#edf1f8;
  --bg:#ffffff;
  --soft:#f6f8fc;
  --soft-2:#eef3fc;
  --brand:#1668e3;
  --brand-2:#7a3ff2;
  --brand-ink:#0d3d99;
  --brand-deep:#0b1c4d;
  --cyan:#19c8d8;
  --grad:linear-gradient(135deg,#1668e3,#7a3ff2);
  --note-bg:#fff9ec;
  --note-line:#e0b155;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 1px 2px rgba(16,26,44,.05), 0 10px 30px -12px rgba(22,104,227,.18);
  --shadow-lg:0 24px 60px -18px rgba(11,28,77,.45);
  --wrap:1160px;
  --wrap-narrow:860px;
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;height:auto}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible,summary:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:4px}

.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:8px;top:8px}

/* ---------- 3. 布局 ---------- */
.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 18px}
.container-narrow{max-width:var(--wrap-narrow)}
main{display:block}
.section{padding:50px 0}
.section + .section{border-top:1px solid var(--line-2)}
.section-soft{background:linear-gradient(180deg,#f6f8ff,#fbfcfe)}
.section-tight{padding:38px 0}

/* ---------- 4. 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);
  border-bottom:1px solid var(--line);backdrop-filter:saturate(150%) blur(8px);
}
.header-inner{display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px;padding-top:10px;padding-bottom:10px}
.brand{display:flex;align-items:center;gap:11px;color:var(--ink);text-decoration:none;margin-right:auto}
.brand:hover{text-decoration:none}
.brand-logo{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;object-fit:cover;display:block;
  box-shadow:0 4px 14px -4px rgba(22,104,227,.45);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16.5px;letter-spacing:.2px}
.brand-text small{font-size:12px;color:var(--sub);letter-spacing:.4px}

.site-nav{width:100%}
.site-nav ul{display:flex;flex-wrap:wrap;gap:2px 6px;list-style:none;margin:0;padding:0}
.site-nav a{
  display:inline-block;padding:8px 14px;border-radius:9px;font-size:15px;color:var(--ink-2);
}
.site-nav a:hover{background:var(--soft-2);color:var(--brand-ink);text-decoration:none}
.site-nav a[aria-current="page"]{background:var(--grad);color:#fff;box-shadow:0 4px 12px -4px rgba(22,104,227,.5)}

.header-cta{
  display:none;flex:0 0 auto;padding:9px 20px;border-radius:999px;font-size:14.5px;font-weight:600;
  background:var(--grad);color:#fff;box-shadow:0 6px 16px -6px rgba(122,63,242,.55);
}
.header-cta:hover{text-decoration:none;filter:brightness(1.06)}
@media (min-width:1000px){
  .header-cta{display:inline-block}
  .site-nav{width:auto}
}

/* ---------- 5. 标题与正文 ---------- */
h1{font-size:29px;line-height:1.35;margin:6px 0 10px;letter-spacing:-.2px}
h2{position:relative;font-size:23px;line-height:1.45;margin:42px 0 14px;letter-spacing:-.1px;padding-bottom:8px}
h2::after{
  content:"";position:absolute;left:0;bottom:0;width:46px;height:3px;border-radius:2px;
  background:var(--grad);
}
h3{font-size:17.5px;line-height:1.5;margin:24px 0 8px}
p{margin:0 0 14px}
.lead{font-size:16.5px;color:var(--sub);margin:0 0 20px}
strong{color:var(--ink-2)}
ul,ol{padding-left:22px;margin:0 0 14px}
li{margin-bottom:6px}
small{font-size:13px}
.muted{color:var(--sub);font-size:14px}

.crumb{font-size:13.5px;color:var(--sub);margin:20px 0 6px}
.crumb a{color:var(--sub)}
.crumb span{color:var(--ink-2)}

/* 结论块（首屏直答，GEO 关键要素） */
.answer{
  border-left:4px solid var(--brand);background:var(--soft-2);
  padding:16px 18px;border-radius:0 var(--radius) var(--radius) 0;margin:0 0 20px;font-size:16px;
}
.answer p:last-child{margin-bottom:0}

/* 事实清单（公司信息） */
.facts{margin:18px 0;border-top:1px solid var(--line)}
.facts div{display:flex;flex-wrap:wrap;gap:4px 14px;padding:10px 0;border-bottom:1px solid var(--line)}
.facts dt{flex:0 0 96px;color:var(--sub);font-size:14px}
.facts dd{margin:0;flex:1 1 240px;font-size:15px}

/* 消歧块（全站实体澄清，不可删改） */
.disamb{
  background:#f6f2ff;border-left:4px solid var(--brand-2);
  padding:14px 16px;border-radius:0 var(--radius) var(--radius) 0;margin:20px 0;font-size:14.5px;
}
.disamb p:last-child{margin-bottom:0}

/* 提示块 */
.note{
  background:var(--note-bg);border-left:4px solid var(--note-line);
  padding:14px 16px;border-radius:0 var(--radius) var(--radius) 0;margin:18px 0;font-size:14.5px;
}
.note p:last-child{margin-bottom:0}

/* ---------- 6. 内页页头条 ---------- */
.page-band{
  background:linear-gradient(132deg,#0b1c4d,#123a8f 62%,#3d2bb0);color:#fff;
  padding:16px 0 18px;
}
.page-band .crumb{margin:0;color:rgba(255,255,255,.72)}
.page-band .crumb a{color:#cfe0ff}
.page-band .crumb span{color:#fff}
.band-line{font-size:12.5px;letter-spacing:.6px;color:rgba(255,255,255,.55);margin:8px 0 0}

/* ---------- 7. 首屏（满版背景图 + 深色蒙版） ---------- */
.hero{
  position:relative;color:#fff;overflow:hidden;padding:72px 0 74px;
  background:
    linear-gradient(100deg, rgba(7,15,40,.92) 0%, rgba(9,24,66,.84) 44%, rgba(18,28,92,.55) 100%),
    radial-gradient(900px 420px at 92% -12%, rgba(122,63,242,.5), transparent 62%),
    url("/assets/img/hero-home.jpg") center/cover no-repeat,
    linear-gradient(132deg,#0b1c4d 0%,#123a8f 52%,#3d2bb0 100%);
  min-height:560px;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.45;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:44px 44px;
}
.hero .container{position:relative}
.hero-copy{max-width:760px}
.hero h1{color:#fff;font-size:36px;margin-top:0;letter-spacing:-.5px}
@media (max-width:719px){.hero h1{font-size:27px}}
.hero .lead{color:rgba(255,255,255,.85);font-size:17px}
.hero .answer{background:rgba(255,255,255,.09);border-left-color:var(--cyan);color:#fff;backdrop-filter:blur(2px)}
.hero .answer strong{color:#fff}
.hero .disamb{background:rgba(255,255,255,.1);border-left-color:var(--brand-2);color:rgba(255,255,255,.92);font-size:14px}
.hero .disamb strong{color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 0}
.hero-stats{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 0;list-style:none;padding:0}
.hero-stats li{
  margin:0;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:5px 14px;font-size:13.5px;color:#fff;
}
.hero-stats b{color:#5ee6f2}

.btn{
  display:inline-block;padding:11px 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;color:#fff;background:var(--grad);text-decoration:none;
  box-shadow:0 8px 20px -8px rgba(22,104,227,.6);
}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.45);box-shadow:none}
.btn-ghost:hover{background:rgba(255,255,255,.2);filter:none}
.section .btn-ghost{background:#fff;color:var(--brand-ink);border-color:var(--line)}
.section .btn-ghost:hover{background:var(--soft-2)}

/* ---------- 8. 图片主导组件（v4 核心） ---------- */

/* 图卡网格 */
.tiles{display:grid;gap:16px;margin:24px 0 8px}
@media (min-width:640px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.tiles.t3{grid-template-columns:repeat(3,1fr)}.tiles.t4{grid-template-columns:repeat(4,1fr)}}

/* 图卡：图占主体，文字压在底部渐变上 */
.tile{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;background:#0e1730;
  min-height:300px;display:flex;align-items:flex-end;box-shadow:var(--shadow);
}
@media (min-width:1000px){.tile{min-height:340px}}
.tile img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .4s ease;
}
.tile:hover img{transform:scale(1.045)}
.tile::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,16,40,.06) 30%,rgba(8,16,40,.88) 100%);
}
.tile-body{position:relative;z-index:1;padding:18px 20px 20px;width:100%}
.tile-body h3{margin:0 0 4px;color:#fff;font-size:18.5px;letter-spacing:.2px}
.tile-body h3 a{color:#fff}
.tile-body p{margin:0;font-size:14px;color:rgba(255,255,255,.86);line-height:1.6}
.tile-tag{
  position:absolute;z-index:1;top:14px;left:14px;font-size:12.5px;color:#fff;
  background:rgba(13,26,64,.55);border:1px solid rgba(255,255,255,.35);
  border-radius:999px;padding:3px 12px;backdrop-filter:blur(3px);letter-spacing:.5px;
}

/* 全宽图带（章节主视觉 + 一句话） */
.banner{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;color:#fff;
  min-height:320px;display:flex;align-items:center;box-shadow:var(--shadow-lg);margin:26px 0 8px;
}
.banner img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,15,40,.92) 6%,rgba(9,24,66,.62) 58%,rgba(18,28,92,.28) 100%);
}
.banner-body{position:relative;z-index:1;padding:36px 32px;max-width:660px}
.banner-body h1{color:#fff;margin:0 0 10px;padding-bottom:0;font-size:30px;letter-spacing:-.4px}
.banner-body h1::after{display:none}
.banner-body h2{color:#fff;margin:0 0 8px;padding-bottom:0;font-size:26px}
.banner-body h2::after{display:none}
.banner-body p{margin:0 0 16px;color:rgba(255,255,255,.86);font-size:15.5px}
.banner-body p:last-child{margin-bottom:0}
.banner-body .note{background:rgba(255,255,255,.1);border-left-color:var(--cyan);color:rgba(255,255,255,.92)}
.banner-body .note strong{color:#fff}

/* 整幅图 + 角标说明 */
.shot{position:relative;margin:0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow)}
.shot img{display:block;width:100%;height:320px;object-fit:cover}
@media (min-width:1000px){.shot img{height:400px}}
.shot figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:26px 18px 12px;font-size:12.5px;
  color:rgba(255,255,255,.85);
  background:linear-gradient(0deg,rgba(8,16,40,.78),transparent);
}

/* ---------- 9. 折叠块（长文本收纳，源码仍可抓取） ---------- */
.fold{
  border:1px solid var(--line);border-radius:var(--radius);background:#fff;
  margin:14px 0;box-shadow:var(--shadow);overflow:hidden;
}
.fold summary{
  cursor:pointer;padding:14px 18px;font-weight:600;font-size:15.5px;color:var(--brand-ink);
  list-style:none;display:flex;align-items:center;gap:10px;background:linear-gradient(180deg,#f7faff,#fff);
}
.fold summary::-webkit-details-marker{display:none}
.fold summary::before{content:"+";flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--grad);color:#fff;font-weight:700;text-align:center;line-height:22px;font-size:14px}
.fold[open] summary::before{content:"–"}
.fold .fold-body{padding:2px 18px 16px;font-size:15px;color:var(--ink-2)}
.fold .fold-body h3{margin-top:14px}
.fold .fold-body > :last-child{margin-bottom:0}

/* ---------- 9b. 问答分组与问句（.qa-q 是结构化数据的抽取标记，勿改类名） ---------- */
.qa-group{
  display:inline-block;margin:26px 0 6px;padding:3px 12px;border-radius:999px;
  background:var(--soft-2);color:var(--brand-ink);font-size:14px;font-weight:700;
}
.qa-group:first-of-type{margin-top:8px}
.qa-q{margin-top:20px}

/* ---------- 10. 卡片（轻文字卡，用于问答 / 要点） ---------- */
.grid-2{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:760px){.grid-2{grid-template-columns:repeat(2,1fr)}}
.grid-3{display:grid;gap:14px;grid-template-columns:1fr}
@media (min-width:760px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1000px){.grid-3{grid-template-columns:repeat(3,1fr)}}
.card{
  border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px 20px 16px;
  background:#fff;box-shadow:var(--shadow);
}
.card h3{margin:0 0 6px;font-size:16.5px}
.card p{margin:0 0 8px;font-size:14.5px;color:var(--ink-2)}
.card p:last-child{margin-bottom:0}
.card-tag{
  display:inline-block;font-size:12.5px;color:#fff;background:var(--grad);
  border-radius:999px;padding:3px 11px;margin-bottom:10px;letter-spacing:.3px;
}

/* 事实条 */
.stat-band{background:#fff;border-bottom:1px solid var(--line-2);box-shadow:0 10px 30px -22px rgba(16,26,44,.5)}
.stat-band ul{
  display:grid;grid-template-columns:repeat(2,1fr);gap:14px 18px;
  list-style:none;margin:0;padding:20px 0;
}
@media (min-width:820px){.stat-band ul{grid-template-columns:repeat(4,1fr);padding:24px 0}}
.stat-band li{margin:0;padding-left:16px;border-left:3px solid var(--brand)}
.stat-band b{display:block;font-size:22px;line-height:1.25;color:var(--brand-ink);letter-spacing:-.3px}
.stat-band span{font-size:13.5px;color:var(--sub)}

/* 图标步骤行 */
.feature-row{display:grid;gap:14px;margin:24px 0 6px}
@media (min-width:640px){.feature-row{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1100px){.feature-row.five{grid-template-columns:repeat(5,1fr)}}
@media (min-width:900px){.feature-row.three{grid-template-columns:repeat(3,1fr)}}
@media (min-width:640px) and (max-width:1099px){.feature-row.five{grid-template-columns:repeat(2,1fr)}}
.feature{
  border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;padding:18px 16px 16px;
  box-shadow:var(--shadow);
}
.feature .ico{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#e9f1ff,#f4ecff);color:var(--brand);margin-bottom:10px;
}
.feature .ico svg{width:21px;height:21px;display:block}
.feature h3{margin:0 0 5px;font-size:16px}
.feature p{margin:0;font-size:14px;color:var(--sub)}
.feature .num{display:inline-block;font-size:12px;font-weight:700;color:var(--brand-2);letter-spacing:1px;margin-bottom:5px}

/* 三档报价卡 */
.price-cards{display:grid;gap:18px;margin:24px 0 12px}
@media (min-width:900px){.price-cards{grid-template-columns:repeat(3,1fr);align-items:start}}
.price-card{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;
  padding:24px 22px 20px;box-shadow:var(--shadow);display:flex;flex-direction:column;
}
.price-card .tier{font-size:13px;letter-spacing:1.5px;color:var(--sub-2);margin-bottom:8px}
.price-card .amt{font-size:26px;font-weight:700;color:var(--brand-ink);line-height:1.2;letter-spacing:-.5px}
.price-card .amt small{font-size:13px;font-weight:400;color:var(--sub);display:block;margin-top:6px;letter-spacing:0}
.price-card ul{list-style:none;padding:0;margin:14px 0 0;font-size:14.5px}
.price-card li{position:relative;padding-left:18px;margin-bottom:7px;color:var(--ink-2)}
.price-card li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--grad);
}
.price-card.is-featured{
  border-color:transparent;box-shadow:0 18px 46px -18px rgba(22,104,227,.5);
  background:linear-gradient(180deg,#f7faff,#fff);
}
.price-card.is-featured::after{
  content:"最常选";position:absolute;top:14px;right:14px;font-size:12px;color:#fff;
  background:var(--grad);border-radius:999px;padding:3px 11px;letter-spacing:.5px;
}
@media (min-width:900px){.price-card.is-featured{transform:translateY(-6px)}}

.price-note{
  background:var(--soft);border-left:4px solid var(--brand);border-radius:0 var(--radius) var(--radius) 0;
  padding:14px 16px;font-size:14px;margin:6px 0 18px;
}
.price-note p:last-child{margin-bottom:0}

/* 区域标签与锚点 */
.area-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0 0 14px}
.area-list li{
  margin:0;padding:7px 15px;border:1px solid #d8e4fb;border-radius:999px;font-size:14.5px;
  color:var(--brand-ink);background:linear-gradient(180deg,#f4f8ff,#fff);
}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0 0 20px}
.anchor-nav a{display:inline-block;padding:6px 13px;border:1px solid #d8e4fb;border-radius:999px;font-size:14px;color:var(--brand-ink);background:#fff}
.anchor-nav a:hover{background:var(--soft-2);text-decoration:none}

/* 行动召唤条 */
.cta-band{
  background:linear-gradient(132deg,#123a8f,#3d2bb0);border-radius:var(--radius-lg);
  color:#fff;padding:30px 28px;display:flex;flex-wrap:wrap;gap:16px 22px;
  align-items:center;justify-content:space-between;box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;margin:0 0 4px;padding-bottom:0}
.cta-band h2::after{display:none}
.cta-band p{margin:0;color:rgba(255,255,255,.8);font-size:15px}
.cta-band .btn{background:#fff;color:var(--brand-ink);box-shadow:none}
.cta-band .btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.45)}

/* ---------- 11. 页脚 ---------- */
.site-footer{margin-top:56px;border-top:0;background:#0e1730;color:#a9b3c9;font-size:14.5px}
.site-footer .container{padding-top:38px;padding-bottom:30px}
.footer-cols{display:grid;gap:26px}
@media (min-width:820px){.footer-cols{grid-template-columns:1.4fr 1fr 1fr}}
.footer-col-h{font-size:14px;color:#fff;letter-spacing:1px;margin:0 0 12px}
.footer-col-h::after{display:none}
.site-footer p{margin:0 0 7px}
.site-footer a{color:#cdd6e8}
.site-footer a:hover{color:#fff}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:7px}
.footer-brand img{width:52px;height:52px;border-radius:14px;display:block;margin-bottom:12px}
.footer-legal{
  margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:#7d879e;line-height:1.7;
}

@media print{
  .site-header,.site-footer,.hero-actions,.skip,.cta-band,.fold summary{display:none}
  body{font-size:12pt}
  a{color:#000}
  .card,.fold,.note,.disamb{box-shadow:none}
  .hero{background:#fff;color:#000;padding:0}
  .hero h1,.hero .answer,.hero .disamb{color:#000}
  .fold[open] .fold-body{display:block}
}