/* ==========================================================================
   快连 kaialanc.com.cn — 全站公共样式
   结构：变量 → 重置 → 布局 → 组件 → 模块 → 响应式
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root{
  --brand:#1f5cff;
  --brand-dark:#1345d6;
  --brand-light:#4b83ff;
  --cyan:#00c8d7;
  --ink:#0d1330;
  --ink-2:#2b3358;
  --text:#3c4361;
  --muted:#767ea3;
  --line:#e6e9f2;
  --bg:#ffffff;
  --bg-soft:#f5f7fd;
  --bg-soft-2:#eef2ff;
  --ok:#00a870;
  --warn:#ff8a00;
  --radius:16px;
  --radius-sm:10px;
  --radius-lg:26px;
  --shadow-s:0 2px 10px rgba(13,19,48,.06);
  --shadow-m:0 10px 30px rgba(13,19,48,.08);
  --shadow-l:0 24px 60px rgba(31,92,255,.16);
  --maxw:1200px;
  --ff:"PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,"Noto Sans SC",sans-serif;
}

/* ---------- 2. 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--ff);color:var(--text);background:var(--bg);
  font-size:16px;line-height:1.85;letter-spacing:.2px;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:.3px}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
li{list-style:none}
table{border-collapse:collapse;width:100%}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--brand-light);outline-offset:2px}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 3. 头部导航 ---------- */
.topbar{
  background:linear-gradient(90deg,#0d1330,#1f5cff 55%,#00c8d7);
  color:#fff;font-size:13px;
}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px}
.topbar span{opacity:.94}
.topbar a{color:#fff;text-decoration:underline;text-underline-offset:3px}

.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;max-width:1280px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--cyan));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 16px rgba(31,92,255,.32);
}
.brand-name{font-size:20px;font-weight:800;color:var(--ink);letter-spacing:1px}
.brand-name em{font-style:normal;font-size:12px;font-weight:600;color:var(--muted);display:block;letter-spacing:2px;line-height:1}

.nav{margin-left:auto;min-width:0}
.nav ul{display:flex;gap:2px;align-items:center;flex-wrap:nowrap}
.nav a{
  display:block;padding:9px 11px;border-radius:9px;color:var(--ink-2);
  font-size:14.5px;font-weight:600;white-space:nowrap;
}
.nav a:hover{background:var(--bg-soft-2);color:var(--brand)}
.nav a.active{background:var(--bg-soft-2);color:var(--brand)}

.header-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:10px;cursor:pointer;position:relative;padding:0}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;position:absolute;left:50%;top:50%;margin:0;
}
.nav-toggle span{transform:translate(-50%,-50%)}
.nav-toggle span::before,.nav-toggle span::after{content:"";margin:0}
.nav-toggle span::before{transform:translate(-50%,-6px)}
.nav-toggle span::after{transform:translate(-50%,6px)}

/* ---------- 4. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.22s;white-space:nowrap;
}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-light));color:#fff;box-shadow:0 10px 24px rgba(31,92,255,.3)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(31,92,255,.38)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--bg-soft-2);color:var(--brand-dark)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{color:#fff;background:#000;transform:translateY(-2px)}
.btn-lg{padding:16px 34px;font-size:16.5px}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 5. Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#f7f9ff,#fff);padding:78px 0 84px}
.hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(10px);z-index:0}
.hero::before{width:520px;height:520px;background:radial-gradient(circle,rgba(31,92,255,.16),transparent 68%);top:-160px;right:-120px}
.hero::after{width:420px;height:420px;background:radial-gradient(circle,rgba(0,200,215,.14),transparent 68%);bottom:-160px;left:-100px}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--bg-soft-2);color:var(--brand);
  border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:700;margin-bottom:22px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,200,215,.2)}
.hero h1{font-size:46px;line-height:1.28;margin-bottom:20px}
.hero h1 .grad{
  background:linear-gradient(120deg,var(--brand),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{font-size:17.5px;color:var(--text);max-width:600px;margin-bottom:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:38px}
.hero-stats div b{display:block;font-size:30px;color:var(--ink);line-height:1.2}
.hero-stats div span{font-size:14px;color:var(--muted)}

.hero-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-l);padding:28px;
}
.hero-card h3{font-size:17px;margin-bottom:4px}
.hero-card .hc-sub{font-size:13px;color:var(--muted);margin-bottom:18px}
.node-row{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border:1px solid var(--line);
  border-radius:12px;margin-bottom:10px;background:var(--bg-soft);
}
.node-row .flag{font-size:20px}
.node-row .nm{font-weight:700;color:var(--ink);font-size:14.5px}
.node-row .bar{flex:1;height:6px;border-radius:6px;background:#e3e8f7;overflow:hidden}
.node-row .bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--cyan))}
.node-row .ms{font-size:13px;color:var(--ok);font-weight:700;min-width:52px;text-align:right}
.hero-card .hc-foot{margin-top:16px;font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:8px}

/* ---------- 6. 通用区块 ---------- */
.section{padding:74px 0}
.section.alt{background:var(--bg-soft)}
.section.dark{background:var(--ink);color:#c9d0e6}
.section.dark h2,.section.dark h3{color:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 46px}
.sec-tag{
  display:inline-block;color:var(--brand);font-weight:800;font-size:13px;letter-spacing:2px;
  text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:34px;margin-bottom:14px}
.sec-head p{font-size:16.5px;color:var(--muted);margin:0}
.section.dark .sec-head p{color:#a8b2cf}

.grid{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

/* ---------- 7. 卡片 ---------- */
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.25s;position:relative;height:100%;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);border-color:#d3ddff}
.card h3{font-size:19px;margin-bottom:10px}
.card p{margin:0;font-size:15px;color:var(--muted)}
.card .ico{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-size:22px;font-weight:800;
}
.card ul{margin-top:14px}
.card ul li{position:relative;padding-left:20px;font-size:14.5px;color:var(--muted);margin-bottom:7px}
.card ul li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-light);
}
.section.dark .card{background:#141b3d;border-color:#26305a}
.section.dark .card p{color:#a8b2cf}
.section.dark .card:hover{border-color:#3a4a86}

/* ---------- 8. 合规条 ---------- */
.compliance{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cp{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--radius-sm);padding:20px 20px;
}
.cp b{display:block;color:var(--ink);font-size:15.5px;margin-bottom:6px}
.cp p{margin:0;font-size:13.8px;color:var(--muted);line-height:1.75}

/* ---------- 9. 场景 ---------- */
.scene{
  border-radius:var(--radius-lg);padding:34px 30px;color:#fff;position:relative;overflow:hidden;
  min-height:250px;display:flex;flex-direction:column;justify-content:flex-end;
}
.scene::after{content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;background:rgba(255,255,255,.12)}
.scene h3{color:#fff;font-size:21px;margin-bottom:8px}
.scene p{margin:0;font-size:14.5px;opacity:.9}
.scene .sc-tag{
  align-self:flex-start;background:rgba(255,255,255,.2);border-radius:999px;
  padding:4px 12px;font-size:12.5px;font-weight:700;margin-bottom:12px;backdrop-filter:blur(4px);
}
.scene.s1{background:linear-gradient(140deg,#1f5cff,#4b83ff)}
.scene.s2{background:linear-gradient(140deg,#00a5b5,#00c8d7)}
.scene.s3{background:linear-gradient(140deg,#5b3df5,#8f6bff)}
.scene.s4{background:linear-gradient(140deg,#0d7a5f,#00b07f)}
.scene.s5{background:linear-gradient(140deg,#c2410c,#f97316)}
.scene.s6{background:linear-gradient(140deg,#1f2937,#4b5563)}

/* ---------- 10. 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:s}
.step{position:relative;padding-top:56px}
.step::before{
  counter-increment:s;content:counter(s);position:absolute;top:0;left:0;
  width:40px;height:40px;border-radius:50%;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-weight:800;
}
.step::after{
  content:"";position:absolute;top:20px;left:48px;right:-26px;height:2px;
  background:linear-gradient(90deg,#d9e1ff,transparent);
}
.step:last-child::after{display:none}
.step h3{font-size:17px;margin-bottom:8px}
.step p{margin:0;font-size:14.5px;color:var(--muted)}

/* ---------- 11. 节点表 ---------- */
.table-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s)}
.table-scroll{overflow-x:auto}
table th,table td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--line);font-size:14.8px;white-space:nowrap}
table th{background:var(--bg-soft-2);color:var(--ink);font-weight:700;font-size:14.5px}
table tr:last-child td{border-bottom:0}
table tbody tr:hover{background:var(--bg-soft)}
td .region{font-weight:700;color:var(--ink)}
.pill{
  display:inline-block;padding:3px 11px;border-radius:999px;font-size:12.5px;font-weight:700;
  background:#e8f7f0;color:var(--ok);
}
.pill.hot{background:#fff0e0;color:var(--warn)}
.pill.vip{background:var(--bg-soft-2);color:var(--brand)}
.pill.v2ray{background:#f1e9ff;color:#6d3bf5}

/* ---------- 12. 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;align-items:stretch}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 26px;
  display:flex;flex-direction:column;transition:.25s;position:relative;
}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow-m)}
.plan.best{border:2px solid var(--brand);box-shadow:var(--shadow-l)}
.plan .badge-top{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;
  font-size:12.5px;font-weight:800;padding:5px 16px;border-radius:999px;white-space:nowrap;
}
.plan h3{font-size:20px;margin-bottom:6px}
.plan .desc{font-size:13.5px;color:var(--muted);min-height:42px;margin-bottom:18px}
.plan .amount{display:flex;align-items:flex-end;gap:4px;margin-bottom:4px}
.plan .amount .cur{font-size:19px;color:var(--ink);font-weight:800;margin-bottom:12px}
.plan .amount .num{font-size:46px;line-height:1;color:var(--ink);font-weight:800}
.plan .amount .unit{font-size:14px;color:var(--muted);margin-bottom:6px}
.plan .origin{font-size:13px;color:var(--muted);margin-bottom:20px;min-height:20px}
.plan .origin s{color:#b9bfd4}
.plan ul{margin-bottom:24px;flex:1}
.plan ul li{position:relative;padding-left:26px;font-size:14.5px;color:var(--text);margin-bottom:11px}
.plan ul li::before{
  content:"✓";position:absolute;left:0;top:0;width:17px;height:17px;border-radius:50%;
  background:#e8f7f0;color:var(--ok);font-size:11px;font-weight:800;display:grid;place-items:center;
}
.plan .btn{width:100%}
.plan-note{margin-top:8px;font-size:12.5px;color:var(--muted);text-align:center}
.price-faq{margin-top:34px;background:var(--bg-soft);border-radius:var(--radius);padding:26px 30px}
.price-faq h3{font-size:18px;margin-bottom:14px}
.price-faq ul{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 30px}
.price-faq li{font-size:14.5px;color:var(--muted);position:relative;padding-left:20px}
.price-faq li::before{content:"·";position:absolute;left:6px;color:var(--brand);font-weight:800;font-size:20px;top:-4px}

/* ---------- 13. 下载 ---------- */
.dl-hero{
  background:linear-gradient(135deg,#0d1330,#1f5cff 60%,#00a5b5);color:#fff;padding:66px 0 72px;position:relative;overflow:hidden;
}
.dl-hero::after{content:"";position:absolute;width:480px;height:480px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),transparent 70%);right:-140px;bottom:-200px}
.dl-hero h1{color:#fff;font-size:38px;margin-bottom:14px}
.dl-hero p{color:#cfd8f5;max-width:660px;font-size:16.5px}
.dl-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.dl-tab{
  display:inline-flex;align-items:center;gap:9px;background:rgba(255,255,255,.14);color:#fff;
  border:1px solid rgba(255,255,255,.24);border-radius:999px;padding:10px 20px;font-weight:700;font-size:15px;cursor:pointer;
  transition:.2s;
}
.dl-tab:hover,.dl-tab.active{background:#fff;color:var(--brand);border-color:#fff}
.dl-tab .os{font-size:17px}

.dl-panel{display:none}
.dl-panel.active{display:block;animation:fade .35s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

.dl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;
  box-shadow:var(--shadow-m);
}
.dl-main{display:flex;align-items:center;gap:28px;flex-wrap:wrap;padding-bottom:26px;border-bottom:1px dashed var(--line)}
.dl-logo{
  width:78px;height:78px;border-radius:20px;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-size:30px;font-weight:800;
}
.dl-info{flex:1;min-width:220px}
.dl-info h3{font-size:23px;margin-bottom:6px}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.dl-meta span{font-size:12.5px;background:var(--bg-soft-2);color:var(--brand);padding:4px 12px;border-radius:999px;font-weight:600}
.dl-meta span.gray{background:var(--bg-soft);color:var(--muted)}
.dl-actions{display:flex;flex-direction:column;gap:10px;min-width:210px}
.dl-sha{font-size:12px;color:var(--muted);text-align:center;font-family:Consolas,Monaco,monospace;word-break:break-all}

.dl-sub{margin-top:26px}
.dl-sub h4{font-size:16px;color:var(--ink);margin-bottom:14px}
.dl-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.dl-item{
  display:flex;align-items:center;gap:14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;background:var(--bg-soft);transition:.2s;
}
.dl-item:hover{border-color:var(--brand);background:#fff;box-shadow:var(--shadow-s)}
.dl-item .os{font-size:22px}
.dl-item b{display:block;color:var(--ink);font-size:14.5px}
.dl-item span{font-size:12.5px;color:var(--muted)}
.dl-item .ver{margin-left:auto;text-align:right;font-size:12.5px;color:var(--muted)}
.dl-item .ver b{display:none}

.dl-notes{margin-top:26px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.note{
  display:flex;gap:12px;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius-sm);padding:15px 17px;
}
.note .nt{font-size:18px;line-height:1.4}
.note b{display:block;color:var(--ink);font-size:14.5px;margin-bottom:3px}
.note p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 14. 教程 / 步骤图 ---------- */
.guide{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.guide .card{display:flex;flex-direction:column}
.guide .step-no{
  font-size:13px;font-weight:800;color:var(--brand);background:var(--bg-soft-2);
  border-radius:999px;padding:3px 12px;align-self:flex-start;margin-bottom:14px;
}
.guide .shot{
  border-radius:var(--radius-sm);border:1px solid var(--line);background:linear-gradient(180deg,#fbfcff,#f2f5ff);
  aspect-ratio:16/10;margin-top:18px;display:grid;place-items:center;color:var(--muted);font-size:13px;
}

.toc{
  background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 26px;margin-bottom:34px;
}
.toc b{display:block;color:var(--ink);font-size:16px;margin-bottom:10px}
.toc ul{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 24px}
.toc li a{font-size:14.5px;color:var(--text)}
.toc li a::before{content:"▸ ";color:var(--brand);font-weight:800}

/* ---------- 15. 评价 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;height:100%;
  display:flex;flex-direction:column;
}
.review:hover{box-shadow:var(--shadow-m);transform:translateY(-4px)}
.review .stars{color:#ffb400;font-size:15px;letter-spacing:2px;margin-bottom:12px}
.review p{margin:0 0 18px;font-size:14.8px;color:var(--text);flex:1}
.review .who{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.review .av{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--cyan));color:#fff;font-weight:700;font-size:15px;
}
.review .who b{display:block;color:var(--ink);font-size:15px}
.review .who span{font-size:12.5px;color:var(--muted)}
.rating-sum{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:44px;
  background:linear-gradient(135deg,var(--bg-soft-2),#fff);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:32px;margin-bottom:40px;
}
.rating-sum .big{font-size:52px;font-weight:800;color:var(--brand);line-height:1}
.rating-sum .big small{font-size:20px;color:var(--muted)}
.rating-sum .bars{min-width:260px;flex:1;max-width:420px}
.rating-sum .bars div{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:7px}
.rating-sum .bars .t{flex:1;height:7px;border-radius:7px;background:#e3e8f7;overflow:hidden}
.rating-sum .bars .t i{display:block;height:100%;background:linear-gradient(90deg,#ffb400,#ff8a00)}

/* ---------- 16. FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 56px 20px 24px;position:relative;
  font-weight:700;color:var(--ink);font-size:17px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;background:var(--bg-soft-2);color:var(--brand);
  display:grid;place-items:center;font-size:19px;font-weight:800;line-height:1;
}
.faq-item[open] summary{border-bottom:1px solid var(--line)}
.faq-item[open] summary::after{content:"−";background:var(--brand);color:#fff}
.faq-body{padding:20px 24px 24px;font-size:15px;color:var(--muted)}
.faq-body p:last-child{margin-bottom:0}
.faq-body ol,.faq-body ul{margin:10px 0 16px;padding-left:4px}
.faq-body ol li,.faq-body ul li{list-style:decimal;padding-left:6px;margin-bottom:8px;color:var(--muted)}
.faq-body ul li{list-style:disc}

/* ---------- 17. 博客 ---------- */
.post{
  display:flex;gap:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:.25s;height:100%;align-items:flex-start;
}
.post:hover{box-shadow:var(--shadow-m);transform:translateY(-4px);border-color:#d3ddff}
.post .thumb{
  width:150px;height:110px;flex:0 0 auto;border-radius:var(--radius-sm);overflow:hidden;
  background:linear-gradient(135deg,var(--brand),var(--cyan));display:grid;place-items:center;
  color:#fff;font-size:13px;font-weight:800;text-align:center;padding:10px;
}
.post .body{flex:1;min-width:0}
.post h3{font-size:18px;margin-bottom:8px}
.post h3 a{color:var(--ink)}
.post h3 a:hover{color:var(--brand)}
.post p{margin:0 0 12px;font-size:14.5px;color:var(--muted)}
.post .pmeta{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--muted)}
.post .pmeta .cat{color:var(--brand);font-weight:700}
.post .pmeta .date::before{content:"�� ";}

.pagination{display:flex;justify-content:center;gap:8px;margin-top:38px}
.pagination a,.pagination span{
  min-width:40px;height:40px;padding:0 12px;border-radius:10px;border:1px solid var(--line);
  display:grid;place-items:center;font-size:14.5px;font-weight:700;color:var(--text);background:#fff;
}
.pagination .current{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ---------- 18. 文章正文 ---------- */
.article{max-width:860px;margin:0 auto}
.article h2{font-size:26px;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--brand)}
.article h3{font-size:19px;margin:26px 0 10px}
.article p{font-size:15.5px;color:var(--text)}
.article ul,.article ol{margin:0 0 18px;padding-left:2px}
.article ul li,.article ol li{list-style:disc;padding-left:8px;margin-bottom:9px;color:var(--text)}
.article ol li{list-style:decimal}
.article blockquote{
  margin:22px 0;padding:18px 22px;background:var(--bg-soft-2);border-left:4px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--ink);font-size:15px;
}
.article .updated{font-size:13px;color:var(--muted);margin-top:34px;padding-top:18px;border-top:1px solid var(--line)}

/* ---------- 19. 内链推荐 ---------- */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.related a{
  display:flex;align-items:center;gap:14px;background:var(--bg-soft);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:18px 20px;font-weight:700;color:var(--ink);transition:.2s;
}
.related a:hover{border-color:var(--brand);background:#fff;transform:translateX(4px);color:var(--brand)}
.related a .ri{font-size:20px}
.related a span small{display:block;font-weight:400;font-size:12.5px;color:var(--muted)}

/* ---------- 20. CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--ink),var(--brand) 70%,var(--cyan));
  color:#fff;border-radius:var(--radius-lg);padding:52px 46px;text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:rgba(255,255,255,.1);left:-90px;bottom:-140px}
.cta-band h2{color:#fff;font-size:32px;margin-bottom:12px}
.cta-band p{color:#dbe3ff;max-width:620px;margin:0 auto 26px;font-size:16.5px}
.cta-band .btn-row{justify-content:center;position:relative}

/* ---------- 21. 页脚 ---------- */
.site-footer{background:#080c22;color:#98a2c4;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1.2fr;gap:34px}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:18px;letter-spacing:.5px}
.site-footer li{margin-bottom:11px}
.site-footer a{color:#98a2c4;font-size:14.2px}
.site-footer a:hover{color:#fff}
.site-footer p{font-size:14.2px;line-height:1.85;color:#98a2c4}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-social{display:flex;gap:10px;margin-top:16px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.07);
  display:grid;place-items:center;color:#fff;font-size:14px;
}
.footer-social a:hover{background:var(--brand)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;margin-bottom:12px}
.footer-contact li .fi{color:var(--cyan);flex:0 0 auto}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);margin-top:46px;padding:20px 0;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:13.2px;color:#7b85a8;
}
.footer-bottom a{color:#7b85a8}
.footer-bottom a:hover{color:#fff}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}

/* ---------- 22. 面包屑 ---------- */
.crumb{font-size:13.5px;color:var(--muted);padding:16px 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb span::before{content:"/";margin:0 8px;color:#c6cbe0}

/* ---------- 23. 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;background:var(--bg-soft);border:1px solid var(--line);
  border-left:4px solid var(--brand);border-radius:var(--radius-sm);padding:18px 20px;margin-bottom:26px;
}
.notice b{display:block;color:var(--ink);margin-bottom:4px;font-size:15px}
.notice p{margin:0;font-size:14.2px;color:var(--muted)}
.notice .ni{font-size:20px;line-height:1.5}

/* ---------- 24. 响应式 ---------- */
/* 1300px 以下隐藏次要 CTA（套餐价格已在导航与抽屉中），为导航让出空间 */
@media (max-width:1300px){
  .header-cta .btn-ghost{display:none}
}
/* 1200px 以下放不下 10 项导航+品牌+CTA，切换为抽屉 */
@media (max-width:1200px){
  .nav{
    position:fixed;left:0;right:0;top:72px;z-index:59;background:#fff;margin:0;
    padding:16px 24px 26px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-m);display:none;max-height:calc(100vh - 72px);overflow-y:auto;
  }
  .nav.open{display:block}
  .nav ul{flex-direction:column;align-items:stretch;gap:2px}
  .nav a{padding:12px 14px;font-size:16px}
  .nav-toggle{display:block}
  .header-cta{margin-left:auto}
}
@media (max-width:1024px){
  .g4,.price-grid,.compliance,.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .guide,.review-grid,.related,.g3{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero h1{font-size:38px}
  .step::after{display:none}
  .toc ul{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .section{padding:54px 0}
  .hero{padding:52px 0 60px}
  .hero h1{font-size:30px}
  .hero-lead{font-size:16px}
  .sec-head h2{font-size:26px}
  .g2,.g3,.g4,.price-grid,.compliance,.steps,.guide,.review-grid,.related,.dl-list,.dl-notes,.price-faq ul,.toc ul,.post{display:block}
  .compliance .cp,.steps .step,.guide .card,.related a{margin-bottom:16px}
  .price-faq li{margin-bottom:8px}
  .post .thumb{margin-bottom:14px}
  .post{display:block}
  .footer-grid{grid-template-columns:1fr}
  .rating-sum{gap:22px;padding:24px}
  .cta-band{padding:38px 22px}
  .cta-band h2{font-size:24px}
  .topbar .wrap{justify-content:center}
  .topbar .wrap span:last-child{display:none}
}