:root{
  --navy:#163A66;
  --navy-2:#285B9C;
  --navy-deep:#122844;
  --gold:#C89B5C;
  --gold-dark:#B58645;
  --soft:#F2F6FA;
  --ink:#1A2433;
  --muted:#545F70;
  --muted-2:#8892A0;
  --line:#D8E1EC;
  --success:#238560;
  --warning:#D46B48;
  --white:#FFFFFF;
  --radius:4px;
  --shadow-sm:0 1px 2px rgba(18,40,68,.05),0 2px 6px rgba(18,40,68,.06);
  --shadow-md:0 2px 6px rgba(18,40,68,.08),0 6px 18px rgba(18,40,68,.08);
  --shadow-lg:0 4px 12px rgba(18,40,68,.10),0 12px 32px rgba(18,40,68,.12);
  --ease:cubic-bezier(.25,.46,.45,.94);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.75;
  font-size:16px;
}
img{max-width:100%;display:block}
a{color:var(--navy);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--gold)}
button{font-family:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink)}
h1,h2,h3,h4{line-height:1.4;margin:0;font-weight:600;color:var(--navy)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}

.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:8px 14px;border-radius:4px;z-index:999}
.skip:focus{left:12px;top:12px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--navy)}
.header-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:#fff}
.brand:hover{color:#fff}
.brand-mark{width:38px;height:38px;border-radius:4px;display:block;background:transparent;color:var(--navy);font-weight:700;font-size:19px;overflow:hidden}
.brand-mark img{width:100%;height:100%;object-fit:contain;display:block}
.brand > img{width:auto;height:42px}
.brand-text{font-size:18px;font-weight:600;letter-spacing:.5px;white-space:nowrap}
.main-nav{display:flex;gap:2px;margin-left:auto}
.main-nav a{position:relative;padding:9px 14px;color:#dfe8f2;font-size:15px;border-radius:4px;transition:color .2s var(--ease),background .2s var(--ease)}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.10)}
.main-nav a.on{color:#fff;font-weight:600}
.main-nav a.on::after{content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;background:var(--gold)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.header-tel{display:flex;align-items:center;gap:8px;color:#e8eef5;font-size:15px;white-space:nowrap;font-weight:500}
.header-tel:hover{color:#fff}
.header-tel .icon{width:26px;height:26px;border-radius:4px;background:rgba(200,155,92,.18);display:grid;place-items:center;color:var(--gold)}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid rgba(255,255,255,.25);background:transparent;border-radius:4px;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.nav-toggle span{width:20px;height:2px;background:#fff;border-radius:2px;transition:.25s var(--ease)}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:var(--radius);font-size:15px;font-weight:600;padding:12px 22px;transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);white-space:nowrap}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-2);color:#fff;transform:translateY(-1px)}
.btn-gold{background:var(--gold);color:var(--navy-deep)}
.btn-gold:hover{background:var(--gold-dark);color:var(--navy-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy);border:1px solid var(--navy)}
.btn-ghost:hover{border-color:var(--navy-2);color:var(--navy-2);transform:translateY(-1px)}
.btn-light{background:var(--white);color:var(--navy)}
.btn-hero-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-hero-ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-lg{padding:14px 28px;font-size:16px}

/* ---------- hero (full-bleed image + overlay) ---------- */
.hero{position:relative;min-height:480px;display:flex;align-items:center;overflow:hidden;background:var(--navy-deep)}
.hero-bg{position:absolute;inset:0;background-color:var(--navy);background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:rgba(22,58,102,.65)}
.hero-bg.noimg{background-image:linear-gradient(rgba(22,58,102,.12),rgba(22,58,102,.12)),url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="120" height="120" viewBox="0 0 120 120"><g fill="none" stroke="%235E86B8" stroke-opacity=".18"><circle cx="60" cy="60" r="46"/><circle cx="60" cy="60" r="30"/><circle cx="60" cy="60" r="14"/><path d="M60 14v92M14 60h92M27 27l66 66M93 27l-66 66"/></g></svg>')}
.hero-inner{position:relative;z-index:2;padding:72px 0;color:#fff}
.hero-kicker{display:inline-flex;align-items:center;gap:10px;color:var(--gold);font-size:14px;font-weight:700;letter-spacing:2px;margin-bottom:20px}
.hero-kicker::before{content:"";width:26px;height:2px;background:var(--gold)}
.hero h1{color:#fff;font-size:32px;letter-spacing:1px;line-height:1.35;margin-bottom:18px;max-width:760px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero .lead{color:rgba(255,255,255,.86);font-size:17px;max-width:640px;margin-bottom:22px}
.hero .points{display:flex;flex-wrap:wrap;gap:26px;margin-bottom:32px}
.hero .points li{display:flex;align-items:center;gap:9px;color:#fff;font-size:14px;font-weight:500}
.hero .points li::before{content:"";width:7px;height:7px;border-radius:1px;background:var(--gold)}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- section common ---------- */
.section{padding:52px 0}
.section-alt{background:var(--soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.tag{display:inline-block;color:var(--gold);font-size:13px;font-weight:700;letter-spacing:2px;margin-bottom:8px}
.section-head h2{position:relative;font-size:24px;letter-spacing:.3px;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:22px;background:var(--gold)}
.section-head .sub{color:var(--muted);font-size:15px;margin-top:7px;margin-left:16px}
.section-head .more{flex:0 0 auto;color:var(--navy);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;border:1px solid var(--navy);border-radius:4px;padding:8px 16px}
.section-head .more:hover{color:var(--navy-2);border-color:var(--navy-2)}

/* ---------- search ---------- */
.search-band{padding:38px 0 52px}
.search-band .card{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:30px 34px;max-width:820px;margin:0 auto;box-shadow:var(--shadow-sm)}
.search-band h3{font-size:21px;text-align:center;margin-bottom:18px}
.search-form{display:flex;gap:10px}
.search-form input{flex:1;border:1px solid var(--navy);border-radius:4px;padding:13px 17px;background:var(--white);outline:none;transition:border .2s}
.search-form input:focus{border-color:var(--navy-2)}
.search-form .btn{flex:0 0 auto}
.hot-words{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:16px;align-items:center}
.hot-words .lbl{color:var(--muted-2);font-size:13px}
.hot-words a{font-size:13px;padding:5px 13px;border-radius:4px;background:var(--soft);color:var(--navy);transition:.2s}
.hot-words a:hover{background:var(--navy);color:#fff}

/* ---------- process ---------- */
.process-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0}
.step-card{position:relative;background:var(--white);border:1px solid var(--line);padding:26px 20px 24px;text-align:center;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.step-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--navy);z-index:2}
.step-card + .step-card{margin-left:-1px}
.step-card .num{font-size:13px;font-weight:700;color:var(--gold);letter-spacing:1px;margin-bottom:12px}
.step-card .ic{width:56px;height:56px;margin:0 auto 14px;border-radius:4px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:24px}
.step-card h4{font-size:16px;margin-bottom:8px}
.step-card p{color:var(--muted);font-size:13px;position:absolute;left:8px;right:8px;top:calc(100% + 4px);background:var(--white);border:1px solid var(--navy);border-radius:4px;padding:12px 14px;opacity:0;pointer-events:none;transform:translateY(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease);box-shadow:var(--shadow-md);z-index:6}
.step-card:hover p{opacity:1;transform:translateY(0)}

/* ---------- service cards ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.svc-card{background:var(--white);border:1px solid var(--navy);border-radius:4px;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);display:flex;flex-direction:column}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--navy-2)}
.svc-card .cover{height:172px;background:var(--soft);position:relative;overflow:hidden;border-bottom:1px solid var(--navy)}
.svc-card .cover img{width:100%;height:100%;object-fit:cover}
.svc-card .cover .ic{position:absolute;left:14px;bottom:14px;width:40px;height:40px;border-radius:4px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:20px}
.svc-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.svc-card h3{font-size:19px;font-weight:500;margin-bottom:8px}
.svc-card .desc{color:var(--muted);font-size:14px;margin-bottom:14px}
.svc-card .meta{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:18px}
.svc-card .meta span{font-size:12px;color:var(--navy);background:var(--soft);padding:4px 10px;border-radius:3px}
.svc-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.svc-card .price{color:var(--gold);font-weight:700;font-size:22px}
.svc-card .price small{color:var(--muted-2);font-size:12px;font-weight:400}

/* ---------- price compare ---------- */
.compare{border:1px solid var(--navy);border-radius:4px;overflow:hidden;overflow-x:auto;background:var(--white)}
.compare-table{width:100%;border-collapse:collapse;min-width:640px}
.compare-table th,.compare-table td{padding:15px 18px;text-align:center;border-right:1px solid var(--line)}
.compare-table th:last-child,.compare-table td:last-child{border-right:0}
.compare-table thead th{background:var(--navy);color:#fff;font-size:16px;font-weight:600}
.compare-table thead th:first-child{text-align:left}
.compare-table tbody td{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
.compare-table tbody tr:nth-child(even){background:var(--soft)}
.compare-table tbody td:first-child{text-align:left;color:var(--navy);font-weight:600;white-space:nowrap}
.compare-table tbody td .big{color:var(--gold);font-size:20px;font-weight:700}
.compare-table tbody td .del{color:var(--muted-2);text-decoration:line-through;font-size:13px;margin-left:6px}

/* ---------- rankings / panels ---------- */
.science-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}
.science-grid>.panel{min-width:0;overflow:hidden}
.panel{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:24px}
.panel .panel-title{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:6px;color:var(--navy)}
.panel .panel-title::before{content:"";width:4px;height:18px;background:var(--gold)}
.panel .panel-sub{color:var(--muted-2);font-size:13px;margin-bottom:16px;margin-left:14px}
.rank-list li{display:flex;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.rank-list li:last-child{border-bottom:0}
.rank-list .idx{flex:0 0 26px;height:26px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:700;color:#fff;background:var(--navy)}
.rank-list .txt{min-width:0}
.rank-list .txt a{display:block;font-weight:600;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-list .txt a:hover{color:var(--gold)}
.rank-list .txt .d{color:var(--muted);font-size:13px;margin-top:3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rank-list .views{flex:0 0 auto;color:var(--muted-2);font-size:12px;align-self:flex-start;margin-top:2px}

/* ---------- featured ---------- */
.featured-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.feat-card{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:18px 16px;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);display:block}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--navy)}
.feat-card .k{font-size:12px;color:var(--gold);font-weight:700;letter-spacing:1px;margin-bottom:8px}
.feat-card h4{font-size:15px;font-weight:500;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:44px}
.feat-card p{color:var(--muted);font-size:12px;margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- policy list ---------- */
.policy-list li{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid var(--line)}
.policy-list li:last-child{border-bottom:0}
.policy-list .ic{width:34px;height:34px;border-radius:4px;background:var(--soft);color:var(--navy);display:grid;place-items:center;flex:0 0 auto}
.policy-list .txt{flex:1;min-width:0}
.policy-list .txt a{font-weight:600;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block}
.policy-list .txt a:hover{color:var(--gold)}
.policy-list .src{font-size:12px;color:var(--navy);background:var(--soft);border:1px solid var(--line);padding:2px 9px;border-radius:3px;margin-top:4px;display:inline-block}
.policy-list time{color:var(--muted-2);font-size:13px;flex:0 0 auto}

/* ---------- experts ---------- */
.expert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.expert-card{background:var(--white);border:1px solid var(--navy);border-radius:4px;padding:24px;text-align:center;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease)}
.expert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--navy-2)}
.expert-card .avatar{width:88px;height:88px;border-radius:50%;margin:0 auto 16px;background:var(--soft);display:grid;place-items:center;color:var(--navy);font-size:30px;font-weight:700;overflow:hidden;border:2px solid var(--gold);padding:3px}
.expert-card .avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%}
.expert-card h4{font-size:18px;margin-bottom:4px}
.expert-card .role{color:var(--gold);font-size:13px;font-weight:600;margin-bottom:10px}
.expert-card .intro{color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px}
.expert-card .tags{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.expert-card .tags span{font-size:12px;color:var(--navy);background:var(--soft);padding:4px 10px;border-radius:3px}

/* ---------- official / partners ---------- */
.official-grid{display:grid;grid-template-columns:repeat(5,1fr);border:1px solid var(--line);border-radius:4px;overflow:hidden}
.official-card{background:var(--white);border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:24px 14px;text-align:center;transition:.2s}
.official-card:nth-child(5n){border-right:0}
.official-card:hover{background:var(--soft)}
.official-card .logo{width:52px;height:52px;border-radius:4px;margin:0 auto 12px;background:var(--soft);display:grid;place-items:center;color:var(--navy);font-size:18px;font-weight:700}
.official-card .logo img{width:100%;height:100%;object-fit:cover;border-radius:4px}
.official-card .name{font-size:14px;font-weight:600;color:var(--ink)}
.partners .tags{display:grid;grid-template-columns:repeat(4,1fr);gap:4px 18px}
.partners .tags a{display:block;padding:8px 2px;font-size:14px;color:var(--navy);border-bottom:1px solid var(--line)}
.partners .tags a:hover{color:var(--gold)}
.partners .tags a small{color:var(--muted-2);font-size:12px;margin-left:8px}

/* ---------- page shells ---------- */
.page-hero{background:var(--soft);border-bottom:1px solid var(--line);padding:42px 0;text-align:center}
.page-hero h1{font-size:31px;margin-bottom:8px}
.page-hero p{color:var(--muted)}
.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--muted-2);font-size:13px;margin:0 0 18px;flex-wrap:wrap}
.breadcrumb a{color:var(--navy)}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .sep{color:var(--line)}
.two-col{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:30px;align-items:start}
.two-col.sidebar-left{grid-template-columns:320px minmax(0,1fr)}
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:20px}
.side-card h4{font-size:16px;margin-bottom:12px;padding-left:12px;position:relative}
.side-card h4::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:16px;background:var(--gold)}
/* 政策详情右栏：常见问答（可滚动） */
.faq-side-list{max-height:420px;overflow-y:auto;padding-right:6px;scrollbar-width:thin;scrollbar-color:#cfd8e3 transparent}
.faq-side-list::-webkit-scrollbar{width:6px}
.faq-side-list::-webkit-scrollbar-thumb{background:#cfd8e3;border-radius:3px}
.faq-side-link{display:block;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;font-weight:600;color:var(--navy);line-height:1.6}
.faq-side-link:last-child{border-bottom:0}
.faq-side-link:hover{color:var(--gold)}
.side-card .empty-tip{color:var(--muted-2);font-size:13px;margin:6px 0}

.cat-side a{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-radius:4px;margin-bottom:6px;color:var(--ink);font-size:14px;transition:.2s}
.cat-side a:hover{background:var(--soft);color:var(--navy)}
.cat-side a.on{background:var(--navy);color:#fff;font-weight:600}

.toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:20px;flex-wrap:wrap;color:var(--muted)}
.toolbar .sorts{display:flex;gap:8px}
.toolbar .sorts a{padding:8px 16px;border-radius:4px;border:1px solid var(--line);color:var(--muted);font-size:14px;transition:.2s}
.toolbar .sorts a.on,.toolbar .sorts a:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

.art-list{display:flex;flex-direction:column;gap:16px}
.art-item{display:flex;gap:20px;background:var(--white);border:1px solid var(--line);border-radius:4px;padding:22px;box-shadow:var(--shadow-sm);transition:.25s var(--ease)}
.art-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--navy)}
.art-item .txt{flex:1;min-width:0}
.art-item h3{font-size:19px;font-weight:500;margin-bottom:8px}
.art-item h3 a{color:var(--navy)}
.art-item h3 a:hover{color:var(--gold)}
.art-item .sum{color:var(--muted);font-size:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.art-item .foot{display:flex;gap:16px;color:var(--muted-2);font-size:13px;align-items:center}

.pager{display:flex;gap:8px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.pager a,.pager span{min-width:40px;height:40px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;border-radius:4px;border:1px solid var(--line);color:var(--muted);font-size:14px}
.pager a:hover{border-color:var(--navy);color:var(--navy)}
.pager .cur{background:var(--navy);color:#fff;border-color:var(--navy)}
.pager .dot{border:0}

/* ---------- detail ---------- */
.detail{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:34px;box-shadow:var(--shadow-sm)}
.detail h1{font-size:29px;margin-bottom:16px}
.detail .meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted-2);font-size:13px;padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:24px}
.detail .meta span{display:inline-flex;gap:6px;align-items:center}
.detail .content{font-size:16px;line-height:1.75;color:var(--ink);max-width:720px;margin:0 auto}
.detail .content h2{font-size:22px;margin:26px 0 12px}
.detail .content h3{font-size:18px;margin:22px 0 10px}
.detail .content p{margin:12px 0}
.detail .content ul{margin:12px 0;padding-left:20px;list-style:disc}
.detail .content img{border-radius:4px;margin:16px 0}
.detail .content table{width:100%;border-collapse:collapse;margin:16px 0}
.detail .content td,.detail .content th{border:1px solid var(--line);padding:10px 12px;text-align:left}
.detail .content blockquote{border-left:3px solid var(--gold);background:var(--soft);margin:16px 0;padding:12px 16px;color:var(--muted)}
.detail .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.detail .tags a{font-size:13px;color:var(--navy);background:var(--soft);padding:5px 12px;border-radius:3px}
.detail .tags a:hover{color:var(--gold)}
.prevnext{display:flex;justify-content:space-between;gap:14px;margin-top:22px;flex-wrap:wrap}
.prevnext a{flex:1;min-width:200px;border:1px solid var(--line);border-radius:4px;padding:13px 16px;color:var(--muted);font-size:14px;transition:.2s}
.prevnext a:hover{border-color:var(--navy);color:var(--navy)}
.prevnext a span{display:block;color:var(--muted-2);font-size:12px;margin-bottom:3px}
.prevnext a.next{text-align:right}

.prod-head{display:grid;grid-template-columns:340px 1fr;gap:28px;margin-bottom:26px}
.prod-head .pic{border-radius:4px;overflow:hidden;background:var(--soft);aspect-ratio:4/3;border:1px solid var(--navy)}
.prod-head .pic img{width:100%;height:100%;object-fit:cover}
.prod-head .info h1{font-size:26px;margin-bottom:12px}
.prod-head .price-line{display:flex;align-items:baseline;gap:10px;margin-bottom:16px}
.prod-head .price-line .now{color:var(--gold);font-size:30px;font-weight:700}
.prod-head .price-line .old{color:var(--muted-2);text-decoration:line-through}
.prod-head .kv{display:flex;flex-wrap:wrap;gap:8px}
.prod-head .kv span{font-size:13px;color:var(--navy);background:var(--soft);padding:5px 12px;border-radius:3px}
.prod-head .cta{margin-top:20px;display:flex;gap:12px;flex-wrap:wrap}
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.rel-item{border:1px solid var(--line);border-radius:4px;padding:14px 16px;font-size:14px;transition:.2s;display:block;color:var(--navy)}
.rel-item:hover{border-color:var(--navy);color:var(--gold)}
.rel-item .d{color:var(--muted);font-size:12px;margin-top:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- about / contact ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:stretch}
.text-card{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:30px;box-shadow:var(--shadow-sm)}
.text-card h2{font-size:22px;margin-bottom:14px}
.text-card p{color:var(--muted);margin-bottom:12px}
.timeline{position:relative;padding-left:26px;margin-top:18px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.timeline li{position:relative;padding-bottom:22px}
.timeline li::before{content:"";position:absolute;left:-25px;top:5px;width:12px;height:12px;border-radius:2px;background:var(--gold);box-shadow:0 0 0 3px var(--soft)}
.timeline li b{display:block;color:var(--navy);margin-bottom:4px}
.timeline li p{color:var(--muted);font-size:14px;margin:0}
.commit-list{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:6px}
.commit-list li{background:var(--soft);border-radius:4px;padding:15px 16px;font-size:14px;color:var(--navy);display:flex;gap:9px;align-items:flex-start}
.commit-list li::before{content:"✓";color:var(--gold);font-weight:700}

.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:start}
.contact-cards{display:flex;flex-direction:column;gap:14px}
.contact-card{background:var(--white);border:1px solid var(--line);border-radius:4px;padding:18px 20px;display:flex;gap:15px;align-items:center;box-shadow:var(--shadow-sm)}
.contact-card .ic{width:46px;height:46px;border-radius:4px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:20px;flex:0 0 auto}
.contact-card b{display:block;color:var(--navy);font-size:15px}
.contact-card .v{color:var(--muted);font-size:14px}
.contact-card .v a{color:var(--navy)}
.contact-card .v a:hover{color:var(--gold)}
.map-wrap{border-radius:4px;overflow:hidden;border:1px solid var(--navy);box-shadow:var(--shadow-sm)}
.map-wrap iframe{width:100%;height:340px;border:0;display:block}

/* ---------- forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-row{display:flex;flex-direction:column;gap:7px}
.form-row.full{grid-column:1/-1}
.form-row label{font-size:13px;color:var(--muted);font-weight:600}
.form-row input,.form-row select,.form-row textarea{border:1px solid var(--navy);border-radius:4px;padding:12px 14px;background:var(--white);outline:none;transition:border .2s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--gold)}
.form-row textarea{resize:vertical;min-height:96px}
.agree{display:flex;gap:9px;align-items:flex-start;font-size:13px;color:var(--muted);grid-column:1/-1}
.agree input{margin-top:3px}
.agree a{color:var(--navy)}

/* ---------- cta band ---------- */
.cta-band{background:var(--navy);border-radius:4px;padding:40px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-md)}
.cta-band h3{color:#fff;font-size:23px;margin-bottom:6px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px}

/* ---------- footer ---------- */
.site-footer{background:var(--navy-deep);color:#c4d1de;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;padding:52px 0 34px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.site-footer .brand{color:#fff;margin-bottom:14px}
.site-footer .brand-text{font-size:17px}
.footer-info p{display:flex;gap:9px;margin-bottom:9px;font-size:14px;align-items:flex-start}
.footer-info .k{color:#8da3b8;flex:0 0 auto}
.footer-info a{color:#c4d1de}
.footer-info a:hover{color:var(--gold)}
.footer-nav a{display:block;padding:6px 0;color:#c4d1de;font-size:14px;transition:.2s}
.footer-nav a:hover{color:var(--gold);padding-left:4px}
.footer-beian{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#8da3b8}
.footer-beian a{color:#a9bcc9}
.footer-beian a:hover{color:var(--gold)}

/* ---------- floating appointment ---------- */
.fab{position:fixed;right:24px;bottom:24px;width:60px;height:60px;border-radius:50%;background:var(--navy);color:#fff;border:0;box-shadow:var(--shadow-lg);display:grid;place-items:center;z-index:90;transition:transform .25s var(--ease),background .25s}
.fab:hover{transform:translateY(-4px) scale(1.03);background:var(--navy-2)}
.fab svg{width:26px;height:26px}
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:22px}
.modal.show{display:flex}
.modal .backdrop{position:absolute;inset:0;background:rgba(18,40,68,.55)}
.modal .dialog{position:relative;width:100%;max-width:560px;background:var(--white);border-radius:4px;box-shadow:var(--shadow-lg);padding:30px;max-height:92vh;overflow:auto;animation:pop .3s var(--ease)}
@keyframes pop{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.modal .close{position:absolute;right:18px;top:18px;width:34px;height:34px;border-radius:4px;border:1px solid var(--line);background:var(--white);color:var(--muted);font-size:16px;line-height:1}
.modal h3{font-size:22px;margin-bottom:6px;color:var(--navy)}
.modal .sub{color:var(--muted);font-size:14px;margin-bottom:22px}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:34px;transform:translateX(-50%) translateY(20px);background:var(--navy-deep);color:#fff;padding:12px 22px;border-radius:4px;font-size:14px;opacity:0;pointer-events:none;transition:.35s var(--ease);z-index:200;box-shadow:var(--shadow-md)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 404 / empty ---------- */
.empty{text-align:center;padding:70px 20px;color:var(--muted)}
.empty .big{font-size:64px;font-weight:700;color:var(--line);line-height:1}
.empty h2{font-size:24px;color:var(--navy);margin:16px 0 8px}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  .hero h1{font-size:30px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .step-card + .step-card{border-left:0}
  .step-card:nth-child(even){border-left:1px solid var(--line)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .featured-grid{grid-template-columns:repeat(2,1fr)}
  .official-grid{grid-template-columns:repeat(2,1fr)}
  .official-card:nth-child(5n){border-right:1px solid var(--line)}
  .official-card:nth-child(2n){border-right:0}
  .expert-grid{grid-template-columns:repeat(2,1fr)}
  .two-col{grid-template-columns:1fr}
  .sidebar{position:static}
  .about-grid,.contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .partners .tags{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  .wrap{padding:0 18px}
  .header-inner{height:62px}
  .main-nav{position:fixed;top:62px;left:0;right:0;background:var(--white);flex-direction:column;padding:12px 18px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-md);display:none}
  .main-nav.open{display:flex}
  .main-nav a{padding:13px 12px;border-bottom:1px solid var(--line);color:var(--navy)}
  .main-nav a:hover{background:var(--soft)}
  .nav-toggle{display:flex}
  .header-tel{display:none}
  .brand-text{font-size:16px}
  .hero{min-height:440px}
  .hero h1{font-size:28px}
  .section{padding:38px 0}
  .section-head h2{font-size:22px}
  .service-grid,.expert-grid{grid-template-columns:1fr}
  .science-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr;gap:0}
  .step-card p{position:static;opacity:1;transform:none;border:0;padding:0;box-shadow:none;pointer-events:auto}
  .detail{padding:22px 18px}
  .prod-head{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .fab{right:18px;bottom:18px;width:54px;height:54px}
  .partners .tags{grid-template-columns:1fr}
}


/* 榜单/列表：条目标题下补描述，超长两行截断，容器固定高度内部滚动 */
.rank-desc,.rank-list .d{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:13px;line-height:1.45;color:#6b7280;margin-top:3px;
}

.hero-news ul{max-height:166px;overflow-y:auto}
.science-grid .panel .rank-list{max-height:204px;overflow-y:auto;padding-right:6px}
.sidebar .side-card .rank-list,.side-card .rank-list{max-height:675px;overflow-y:auto;padding-right:6px}
.side-news{max-height:220px;overflow-y:auto}

/* 榜单滚动条：改细、改浅色，美化 */
.rank-list,.hero-news ul,.side-news,.hot-qa ul,.index-list-right ul,.rank-box .rank-list{scrollbar-width:thin;scrollbar-color:#dbe1e8 transparent}
.rank-list::-webkit-scrollbar,.hero-news ul::-webkit-scrollbar,.side-news::-webkit-scrollbar,.hot-qa ul::-webkit-scrollbar,.index-list-right ul::-webkit-scrollbar,.rank-box .rank-list::-webkit-scrollbar{width:6px;height:6px}
.rank-list::-webkit-scrollbar-track,.hero-news ul::-webkit-scrollbar-track,.side-news::-webkit-scrollbar-track,.hot-qa ul::-webkit-scrollbar-track,.index-list-right ul::-webkit-scrollbar-track,.rank-box .rank-list::-webkit-scrollbar-track{background:transparent}
.rank-list::-webkit-scrollbar-thumb,.hero-news ul::-webkit-scrollbar-thumb,.side-news::-webkit-scrollbar-thumb,.hot-qa ul::-webkit-scrollbar-thumb,.index-list-right ul::-webkit-scrollbar-thumb,.rank-box .rank-list::-webkit-scrollbar-thumb{background:#dbe1e8;border-radius:3px}
.rank-list::-webkit-scrollbar-thumb:hover,.hero-news ul::-webkit-scrollbar-thumb:hover,.side-news::-webkit-scrollbar-thumb:hover,.hot-qa ul::-webkit-scrollbar-thumb:hover,.index-list-right ul::-webkit-scrollbar-thumb:hover,.rank-box .rank-list::-webkit-scrollbar-thumb:hover{background:#c6cfd9}

/* 列表页右侧产品推荐 + 底部推荐 */
.three-col{display:grid;grid-template-columns:240px minmax(0,1fr) 300px;gap:24px}
.three-col>.sidebar{position:static}
.pitem{display:flex;gap:10px;padding:8px 0;border-bottom:1px solid var(--line);align-items:flex-start}
.pitem:last-child{border-bottom:0}
.pitem img{width:56px;height:56px;border-radius:6px;object-fit:cover;flex:0 0 56px}
.pitem .pinfo{min-width:0}
.pitem strong{display:block;font-size:14px;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pitem em{display:block;font-style:normal;font-size:12px;color:var(--gold);margin:1px 0}
.pitem .d{font-size:12px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-cta .btn{display:block;text-align:center;margin-top:8px}
.side-cta p{font-size:13px;color:var(--muted)}
.rec-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rec-strip .svc-card{min-width:0}

/* ===== 栏目分组 tabs（后台栏目，默认「全部」） ===== */
.cat-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.cat-tabs a{padding:7px 16px;border-radius:4px;border:1px solid var(--navy);color:var(--navy);font-size:14px;text-decoration:none;background:#fff}
.cat-tabs a.on,.cat-tabs a.active,.cat-tabs a:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ===== 移动端防横向拖动兜底（2026-10-21） ===== */
@media (max-width: 640px) {
  html, body { max-width: 100%; overflow-x: hidden; }
  img, video, iframe, table, pre { max-width: 100%; }
  .container, .wrap, .section, main, [class*="layout"] { min-width: 0; }
  [class*="layout"] > * { min-width: 0; }
  .article-card-body, .faq-item__q, .faq-item__a, .news-line, td, th { overflow-wrap: anywhere; word-break: break-word; }
}

/* ===== 列表空状态：栏目下没有内容时保留页面布局，只把内容区换成提示 ===== */
.empty-panel, .cat-empty {
  grid-column: 1 / -1; width: 100%; border: 1px dashed #d8e0ea; background: #fbfcfe;
  border-radius: 6px; padding: 44px 20px; text-align: center; color: #8a97a8; font-size: 14px;
}