/* ══════════════════════════════════════════════════════════
   湾流智库 · 内容页样式（2026-10-19）
   遵循 VIS V2.4 令牌；由 uaivalue-src/build.js 生成页面统一引用
   ══════════════════════════════════════════════════════════ */
:root{
  --blue:#3267F3; --indigo:#6361DA; --purple:#8A4FC4; --violet:#9155C3;
  --magenta:#C949A6; --rose:#E84493;
  --ink:#1C1635; --body:#403A52; --muted:#7A7490;
  --page:#F7F5FC; --tint:#EFEAF9; --card:#FFFFFF; --line:#E4DEF2;
  --ok:#2D8A5F; --warn:#C98A1E; --err:#C0392B;
  --grad:linear-gradient(135deg,#3267F3,#6361DA 22%,#8A4FC4 45%,#9155C3 62%,#C949A6 82%,#E84493);
  --grad-h:linear-gradient(90deg,#3267F3,#6361DA 22%,#8A4FC4 45%,#9155C3 62%,#C949A6 82%,#E84493);
  --deep:linear-gradient(150deg,#1b2a6b,#3a2a8c 38%,#5a2a8e 66%,#7a2270);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
  --sans:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;
  --max:1140px;
  --sh:0 10px 30px -18px rgba(74,42,120,.28);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--page);color:var(--body);font-family:var(--sans);
  font-size:15.5px;line-height:1.8;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--purple);text-decoration:none}
a:hover{color:var(--magenta)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ── Header ── */
.hd{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.hd-in{max-width:var(--max);margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:9px;flex:none;text-decoration:none}
.brand img{height:30px;width:auto}
.brand .bn{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--ink);line-height:1.15}
.brand .be{display:block;font-size:7px;letter-spacing:.19em;color:var(--muted);margin-top:2px}
.nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav a{font-size:13.5px;color:var(--body);text-decoration:none;position:relative;padding:4px 0}
.nav a:hover{color:var(--purple)}
.nav a.on{color:var(--purple);font-weight:600}
.nav a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--grad-h);border-radius:2px}
.hd-cta{flex:none;background:var(--grad-h);color:#fff;border:0;cursor:pointer;
  padding:9px 18px;border-radius:10px;font-size:13px;font-weight:600;font-family:inherit;
  box-shadow:0 6px 18px -8px rgba(138,79,196,.7)}
.hd-cta:hover{opacity:.93}
.burger{display:none;background:none;border:0;cursor:pointer;padding:6px}
.burger span{display:block;width:20px;height:2px;background:var(--ink);margin:4px 0;border-radius:2px}

/* ── Hero ── */
.hero{position:relative;overflow:hidden;padding:52px 0 56px;
  background:linear-gradient(180deg,#FBFAFE 0%,#F3EFFB 100%);border-bottom:1px solid var(--line)}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(138,79,196,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(138,79,196,.055) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse 76% 70% at 72% 22%,#000 20%,transparent 76%);
  -webkit-mask-image:radial-gradient(ellipse 76% 70% at 72% 22%,#000 20%,transparent 76%)}
.hero::after{content:"";position:absolute;width:520px;height:520px;right:-160px;top:-220px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,73,166,.16),transparent 66%);
  filter:blur(12px)}
.hero .wrap{position:relative;z-index:2}
.crumb{font-size:12.5px;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--purple)}
.crumb span.sep{margin:0 7px;opacity:.5}
.hero h1{font-family:var(--serif);font-size:clamp(27px,3.6vw,40px);line-height:1.32;
  color:var(--ink);font-weight:700;letter-spacing:.005em;max-width:900px}
.hero h1 em{font-style:normal;background:var(--grad-h);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{margin-top:18px;font-size:16px;color:var(--body);max-width:800px;line-height:1.85}
.pills{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
.pill{font-size:12.5px;color:var(--purple);background:rgba(138,79,196,.085);
  border:1px solid rgba(138,79,196,.18);border-radius:999px;padding:5px 13px}
.hero-act{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.meta-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:26px;
  padding-top:22px;border-top:1px solid var(--line);max-width:900px}
.meta-row dt{font-size:11.5px;color:var(--muted);letter-spacing:.06em;margin-bottom:5px}
.meta-row dd{font-size:14px;color:var(--ink);font-weight:700;line-height:1.5}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:12px 24px;border-radius:11px;font-size:14px;font-weight:600;
  font-family:inherit;cursor:pointer;border:0;text-decoration:none;transition:.18s}
.btn-pri{background:var(--grad-h);color:#fff;box-shadow:0 8px 22px -10px rgba(138,79,196,.72)}
.btn-pri:hover{color:#fff;transform:translateY(-1px)}
.btn-sec{background:#fff;color:var(--body);border:1px solid var(--line)}
.btn-sec:hover{color:var(--magenta);border-color:rgba(201,73,166,.4)}

/* ── Section ── */
.sec{padding:60px 0}
.sec.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec h2{font-family:var(--serif);font-size:clamp(21px,2.4vw,27px);color:var(--ink);
  line-height:1.42;margin-bottom:14px;letter-spacing:.005em}
.sec h2 + .sub{color:var(--muted);font-size:14.5px;margin-bottom:24px;max-width:820px}
.sec p{margin-bottom:14px;max-width:860px}
.sec p:last-child{margin-bottom:0}
.sec strong{color:var(--ink);font-weight:700}
.eyebrow{display:block;font-size:11px;letter-spacing:.2em;color:var(--purple);
  margin-bottom:10px;font-weight:600}

/* ── Cards ── */
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:8px}
.cards.c3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 24px;
  box-shadow:var(--sh)}
.card h3{font-family:var(--serif);font-size:16px;color:var(--ink);margin-bottom:8px;line-height:1.5}
.card p{font-size:14px;color:var(--body);margin:0}
.card .tag{display:inline-block;font-size:11px;color:var(--magenta);
  background:rgba(201,73,166,.08);border-radius:6px;padding:2px 8px;margin-bottom:10px}

/* ── List ── */
.list{list-style:none;margin:6px 0 0}
.list li{position:relative;padding-left:20px;margin-bottom:10px;font-size:14.5px;line-height:1.78}
.list li::before{content:"";position:absolute;left:2px;top:10px;width:6px;height:6px;
  border-radius:2px;background:var(--grad-h);opacity:.75}
.list.dash li::before{width:8px;height:2px;top:14px;border-radius:2px}

/* ── Table ── */
.tbl-wrap{overflow-x:auto;margin:20px 0 4px;border:1px solid var(--line);
  border-radius:14px;background:#fff;box-shadow:var(--sh)}
table.tbl{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
table.tbl th{background:#FBF9FE;text-align:left;padding:13px 16px;font-weight:700;
  color:var(--ink);border-bottom:1px solid var(--line);white-space:nowrap;font-size:13px}
table.tbl td{padding:13px 16px;border-bottom:1px solid #F3EFFA;vertical-align:top;line-height:1.7}
table.tbl tr:last-child td{border-bottom:none}
table.tbl td:first-child{color:var(--ink);font-weight:600}
table.tbl .rec{color:var(--purple);font-weight:700}

/* ── Steps ── */
.steps{counter-reset:s;display:grid;gap:12px;margin-top:10px}
.step{position:relative;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px 18px 60px;box-shadow:var(--sh)}
.step::before{counter-increment:s;content:counter(s,decimal-leading-zero);
  position:absolute;left:18px;top:17px;font-family:var(--serif);font-size:15px;
  font-weight:700;color:var(--purple);opacity:.55}
.step h4{font-size:14.5px;color:var(--ink);margin-bottom:5px;font-weight:700}
.step p{font-size:13.5px;color:var(--body);margin:0;max-width:none}

/* ── Note / callout ── */
.note{background:var(--tint);border-left:3px solid var(--purple);border-radius:0 10px 10px 0;
  padding:16px 20px;font-size:13.5px;color:var(--body);margin:18px 0 0;line-height:1.8}
.note b{color:var(--ink)}
.compliance{background:#FFF9F2;border-left:3px solid var(--warn);border-radius:0 10px 10px 0;
  padding:14px 18px;font-size:12.5px;color:#6B5A3E;margin-top:22px;line-height:1.8}

/* ── FAQ ── */
.faq{max-width:860px;margin-top:8px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:11px;overflow:hidden;box-shadow:var(--sh)}
.faq-item summary{list-style:none;cursor:pointer;padding:17px 22px;font-weight:700;
  color:var(--ink);font-size:14.5px;display:flex;justify-content:space-between;
  align-items:flex-start;gap:16px;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--magenta);font-weight:400;font-size:20px;
  line-height:1;flex:none}
.faq-item[open] summary::after{content:'−'}
.faq-a{padding:0 22px 19px;font-size:14px;color:var(--body);line-height:1.85}

/* ── CTA band ── */
.cta{position:relative;overflow:hidden;background:var(--deep);color:#fff;padding:56px 0}
.cta::after{content:"";position:absolute;width:560px;height:560px;left:-140px;bottom:-320px;
  border-radius:50%;background:radial-gradient(circle,rgba(232,68,147,.22),transparent 66%)}
.cta .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1fr 236px;
  gap:40px;align-items:center}
.cta h2{color:#fff;font-family:var(--serif);font-size:clamp(21px,2.6vw,29px);line-height:1.4}
.cta p{color:rgba(255,255,255,.76);margin-top:12px;font-size:14.5px;max-width:560px}
.cta .acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
.cta .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.28)}
.cta .btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.qr-box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);
  border-radius:14px;padding:16px;text-align:center}
.qr-box img{width:100%;height:auto;border-radius:8px;background:#fff;padding:6px}
.qr-box span{display:block;font-size:12px;color:rgba(255,255,255,.66);margin-top:10px}

/* ── Related ── */
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:8px}
.rel a{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:18px 20px;text-decoration:none;transition:.18s;box-shadow:var(--sh)}
.rel a:hover{border-color:rgba(201,73,166,.38);transform:translateY(-2px)}
.rel .rt{font-size:11px;color:var(--muted);letter-spacing:.08em;margin-bottom:6px}
.rel .rn{font-size:14.5px;color:var(--ink);font-weight:700;line-height:1.5}
.rel .rd{font-size:12.5px;color:var(--muted);margin-top:6px;line-height:1.6}

/* ── Footer ── */
.ft{background:var(--deep);color:rgba(255,255,255,.6);padding:44px 0 26px;font-size:13px}
.ft-in{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px}
.ft .fb{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.ft .fb img{height:34px;width:auto}
.ft .fn{font-family:var(--serif);font-size:14px;color:#fff;font-weight:700;line-height:1.2}
.ft .fe{display:block;font-size:7px;letter-spacing:.18em;color:rgba(255,255,255,.3);margin-top:3px}
.ft p{font-size:12.5px;line-height:1.9;max-width:340px}
.ft h4{color:rgba(255,255,255,.85);font-size:12.5px;margin-bottom:10px;font-weight:700;letter-spacing:.06em}
.ft ul{list-style:none}
.ft li{margin-bottom:7px;font-size:12.5px}
.ft a{color:rgba(255,255,255,.6)}
.ft a:hover{color:#fff}
.ft-bot{border-top:1px solid rgba(255,255,255,.1);margin-top:30px;padding-top:16px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:11.5px;
  color:rgba(255,255,255,.38)}
.ft-bot a{color:rgba(255,255,255,.38)}

/* ── Modal ── */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;
  background:rgba(16,12,40,.62);backdrop-filter:blur(4px);padding:24px}
.modal.on{display:flex}
.modal-in{background:#fff;border-radius:18px;padding:26px;max-width:376px;width:100%;
  text-align:center;position:relative;box-shadow:0 30px 70px -26px rgba(20,10,50,.55)}
.modal-in h3{font-family:var(--serif);font-size:18px;color:var(--ink);margin-bottom:6px}
.modal-in p{font-size:13px;color:var(--muted);margin-bottom:16px}
.modal-in img{width:100%;border-radius:10px;border:1px solid var(--line)}
.modal-x{position:absolute;top:10px;right:12px;background:none;border:0;font-size:22px;
  color:var(--muted);cursor:pointer;line-height:1}
.modal-tip{font-size:12px;color:var(--muted);margin-top:12px}

/* ── Responsive ── */
@media(max-width:960px){
  .cards,.cards.c3,.rel{grid-template-columns:1fr}
  .meta-row{grid-template-columns:1fr 1fr}
  .cta .wrap{grid-template-columns:1fr}
  .qr-box{max-width:236px}
  .ft-in{grid-template-columns:1fr;gap:24px}
  .nav{display:none}
  .nav.open{display:flex;position:absolute;top:64px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:flex-start;padding:16px 24px;gap:14px;
    border-bottom:1px solid var(--line);box-shadow:0 12px 24px -18px rgba(40,20,80,.4)}
  .hd-cta{margin-left:auto;padding:8px 13px;font-size:12px}
  .burger{display:block;margin-left:10px}
}
@media(max-width:560px){
  .hero{padding:34px 0 40px}
  .sec{padding:42px 0}
  .step{padding:16px 16px 16px 52px}
  .hero h1{font-size:24px}
}