/* ==========================================================
   抖禾跨境 · 共享样式
   ========================================================== */
:root{
  --red:#FF7A1A; --red-2:#FF9442; --red-d:#D45E08; --red-dd:#0B2B5E;
  --ink:#0B2B5E; --ink-2:#103670; --ink-3:#164283; --ink-line:rgba(255,255,255,.13);
  --blue:#2F6BFF; --blue-l:#E8EEFB;
  --paper:#F4F7FC; --paper-2:#EAF0F9; --card:#ffffff; --line:#DCE4F0;
  --gold:#FF7A1A; --gold-l:#FFB27A; --gold-d:#C2530A;
  --text:#0F1B33; --muted:#5B6880; --muted-2:#8D98AD;
  --ok:#14A05A;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans CJK SC","Source Han Sans SC",system-ui,sans-serif;
  --serif:"Songti SC","STSong","Noto Serif CJK SC","Source Han Serif SC","SimSun",serif;
  --num:"DIN Alternate","DIN Condensed","Bahnschrift","Roboto Condensed","Arial Narrow",var(--sans);
  --r:14px; --wrap:1200px;
  --shadow:0 28px 60px -34px rgba(11,43,94,.45);
  --ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;overflow-x:hidden}
body{font-family:var(--sans);color:var(--text);background:var(--paper);line-height:1.7;font-size:16px;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.red{color:var(--red)} .gold{color:var(--gold)} .goldl{color:var(--gold-l)}
.num{font-family:var(--num);font-weight:700;letter-spacing:-.01em;font-variant-numeric:tabular-nums}
.serif{font-family:var(--serif)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:6px;font-weight:700;font-size:16px;cursor:pointer;border:0;transition:transform .2s,box-shadow .2s,background .2s,color .2s;white-space:nowrap;line-height:1.2}
.btn svg{width:18px;height:18px;flex:none}
.btn-red{background:linear-gradient(180deg,var(--red-2),var(--red));color:#fff;box-shadow:0 10px 26px -10px rgba(255,122,26,.8),inset 0 1px 0 rgba(255,255,255,.2)}
.btn-red:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(255,122,26,.9),inset 0 1px 0 rgba(255,255,255,.2)}
.btn-gold{background:#fff;color:#16181d;box-shadow:0 10px 26px -12px rgba(0,0,0,.5)}
.btn-gold:hover{transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(255,255,255,.3);color:#fff;background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--gold-l);color:var(--gold-l)}
.btn-line{border:1.5px solid var(--text);color:var(--text);background:transparent}
.btn-line:hover{background:var(--text);color:#fff}
.btn-lg{padding:17px 32px;font-size:17px}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;pointer-events:none}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,box-shadow .3s}
.nav.solid{background:rgba(11,43,94,.92);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);box-shadow:0 1px 0 var(--ink-line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;color:#fff;flex:none}
.brand img{height:30px;width:auto}
.brand b{font-size:19px;letter-spacing:.1em;display:block;line-height:1.1}
.brand small{display:block;font-size:9.5px;letter-spacing:.22em;opacity:.5;line-height:1;margin-top:4px}
.nav-links{display:flex;gap:28px;list-style:none}
.nav-links a{color:rgba(255,255,255,.75);font-size:15px;position:relative;padding:6px 0}
.nav-links a:hover,.nav-links a.on{color:#fff}
.nav-links a.on::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--red)}
.nav-links .hot{color:var(--gold-l)}
.nav-links .hot::before{white-space:nowrap;right:-34px!important;content:"报名中";font-size:9px;font-weight:800;background:var(--red);color:#fff;padding:1px 4px;border-radius:2px;position:absolute;top:-10px;right:-26px;letter-spacing:.05em}
.nav-right{display:flex;align-items:center;gap:16px}
.nav-tel{display:flex;align-items:center;gap:8px;color:#fff;font-family:var(--num);font-size:18px;font-weight:700}
.nav-tel svg{width:18px;height:18px;color:var(--gold)}
.nav .btn{padding:10px 18px;font-size:14px}
.burger{display:none;width:40px;height:40px;border:0;background:transparent;color:#fff;cursor:pointer}
.burger svg{width:26px;height:26px}
.mmenu{display:none;position:fixed;inset:70px 0 0;background:rgba(11,43,94,.98);z-index:49;padding:20px 24px;flex-direction:column;gap:4px}
.mmenu.open{display:flex}
.mmenu a{color:#fff;font-size:18px;padding:16px 4px;border-bottom:1px solid var(--ink-line)}
.mmenu .btn{margin-top:20px;border:0}
@media(max-width:1060px){.nav-links,.nav-tel{display:none}.burger{display:grid;place-items:center}}
@media(max-width:560px){.nav .nav-right .btn{display:none}}

/* ---------- section scaffolding ---------- */
section{padding:112px 0;position:relative}
.sec-head{margin-bottom:56px;max-width:780px}
.sec-head.center{text-align:center;margin-inline:auto}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.22em;color:var(--red);font-weight:800;margin-bottom:16px;text-transform:uppercase}
.kicker::before{content:"";width:26px;height:2px;background:currentColor}
.sec-head.center .kicker::after{content:"";width:26px;height:2px;background:currentColor}
h1,h2,h3{font-weight:900;letter-spacing:.01em}
h2{font-size:clamp(30px,4vw,48px);line-height:1.22}
.sec-head p{color:var(--muted);font-size:18px;margin-top:16px}
.dark{background:var(--ink);color:#fff}
.dark .sec-head p{color:rgba(255,255,255,.6)}
.dark .kicker{color:var(--gold)}
.paper2{background:var(--paper-2)}
@media(max-width:720px){section{padding:80px 0}.sec-head{margin-bottom:40px}}

/* seal */
.seal{display:inline-grid;place-items:center;width:80px;height:80px;border:3px solid var(--red);color:var(--red);font-family:var(--serif);font-weight:900;font-size:20px;line-height:1.1;text-align:center;transform:rotate(-9deg);border-radius:8px;padding:6px;letter-spacing:.06em;box-shadow:inset 0 0 0 2px var(--card),inset 0 0 0 4px var(--red);background:var(--card)}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}html{scroll-behavior:auto}}

/* ---------- forms ---------- */
.form-card{background:var(--card);border-radius:14px;padding:34px;box-shadow:var(--shadow);border:1px solid rgba(0,0,0,.04);position:relative;color:var(--text)}
.form-card .ft-title{font-size:22px;font-weight:900;line-height:1.35}
.form-card .ft-sub{color:var(--muted);font-size:14px;margin:6px 0 22px}
.f{margin-bottom:14px;position:relative}
.f label.lb{display:block;font-size:14px;font-weight:700;margin-bottom:6px}
.f label.lb i{color:var(--red);font-style:normal;margin-left:2px}
.f input,.f select,.f textarea{width:100%;padding:13px 14px;border:1px solid #d9cfbf;border-radius:8px;font-size:16px;font-family:inherit;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s;appearance:none;-webkit-appearance:none}
.f select{background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236e6663' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") right 12px center/18px no-repeat;padding-right:38px}
.f textarea{min-height:88px;resize:vertical}
.f input:focus,.f select:focus,.f textarea:focus{outline:0;border-color:var(--red);box-shadow:0 0 0 4px rgba(255,122,26,.1)}
.f.bad input,.f.bad select{border-color:var(--red);background:#fff6f6}
.f .err{color:var(--red);font-size:12.5px;margin-top:4px;display:none}
.f.bad .err{display:block}
.f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chips label{cursor:pointer}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:inline-block;padding:8px 14px;border:1px solid #d9cfbf;border-radius:30px;font-size:14px;background:#fff;transition:.15s}
.chips input:checked+span{background:var(--ink);color:#fff;border-color:var(--red)}
.chips input:focus-visible+span{outline:2px solid var(--red);outline-offset:2px}
.agree{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:var(--muted);margin:4px 0 14px;cursor:pointer;line-height:1.5}
.agree input{width:16px;height:16px;margin-top:2px;accent-color:var(--red);flex:none}
.agree a{color:var(--text);text-decoration:underline;text-underline-offset:2px}
.agree.bad{color:var(--red)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.f-note{font-size:12.5px;color:var(--muted-2);text-align:center;margin-top:12px;display:flex;align-items:center;justify-content:center;gap:6px}
.f-note svg{width:14px;height:14px}
.form-err{display:none;background:#fff1f1;border:1px solid #f3c4c4;color:#9a1d1d;border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:12px}
.form-err.show{display:block}
@media(max-width:560px){.f-row{grid-template-columns:1fr}.form-card{padding:26px 20px}}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;background:rgba(10,8,9,.62);z-index:100;display:none;place-items:center;padding:20px;backdrop-filter:blur(4px)}
.modal.open{display:grid;animation:fade .25s}
@keyframes fade{from{opacity:0}}
.modal-c{background:var(--card);border-radius:14px;max-width:460px;width:100%;padding:36px 30px 30px;text-align:center;position:relative;max-height:90vh;overflow:auto;animation:pop .35s cubic-bezier(.2,.9,.3,1.2)}
@keyframes pop{from{transform:scale(.92) translateY(10px);opacity:0}}
.modal-c h3{font-size:24px;margin:16px 0 8px}
.modal-c p{color:var(--muted);font-size:15px}
.modal-c .x{position:absolute;right:10px;top:6px;background:none;border:0;font-size:28px;cursor:pointer;color:#a59c96;width:40px;height:40px}
.modal-c .steps{text-align:left;background:var(--paper);border-radius:10px;padding:16px 18px;margin:20px 0;font-size:14.5px}
.modal-c .steps li{margin-left:18px;padding:3px 0}
.modal-c .wx{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px dashed var(--line);border-radius:10px;padding:12px 14px;margin:14px 0}
.modal-c .wx b{font-family:var(--num);font-size:20px;color:var(--red)}
.modal-c .wx button{border:0;background:var(--ink);color:#fff;border-radius:6px;padding:8px 12px;font-size:13px;cursor:pointer}
.modal-c.doc{text-align:left;max-width:640px}
.modal-c.doc h3{margin-top:0}
.modal-c.doc h4{margin:16px 0 4px;font-size:15px}
.modal-c.doc p{font-size:14px}
.check{width:64px;height:64px;border-radius:50%;background:var(--ok);display:grid;place-items:center;margin:0 auto;box-shadow:0 0 0 8px rgba(31,157,85,.12)}
.check svg{width:32px;height:32px;color:#fff}

/* ---------- float consult (desktop) ---------- */
.float{position:fixed;right:18px;bottom:24px;z-index:40;display:flex;flex-direction:column;gap:8px;opacity:0;transform:translateY(20px);pointer-events:none;transition:.4s}
.float.show{opacity:1;transform:none;pointer-events:auto}
.float a,.float button{width:60px;height:60px;border-radius:12px;background:var(--ink);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11px;gap:3px;border:0;cursor:pointer;box-shadow:0 10px 30px -10px rgba(0,0,0,.5);position:relative;transition:.2s}
.float a:hover,.float button:hover{background:var(--red)}
.float a.main{background:var(--red);color:#fff;height:76px}
.float svg{width:22px;height:22px}
.float .tip{position:absolute;right:72px;top:50%;transform:translateY(-50%);background:var(--card);color:var(--text);padding:12px 16px;border-radius:10px;white-space:nowrap;font-size:14px;box-shadow:var(--shadow);display:none;text-align:left}
.float .tip b{display:block;font-family:var(--num);font-size:19px;color:var(--red)}
.float a:hover .tip,.float button:hover .tip{display:block}
@media(max-width:780px){.float{display:none}}

/* ---------- mobile bar ---------- */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:60;background:#fff;box-shadow:0 -6px 24px rgba(0,0,0,.14);padding-bottom:env(safe-area-inset-bottom)}
.mbar a,.mbar button{flex:1;text-align:center;padding:9px 0;font-size:12px;font-weight:700;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--text);background:none;border:0}
.mbar svg{width:20px;height:20px}
.mbar .main{background:var(--red);color:#fff;flex:1.6;justify-content:center;font-size:15px;flex-direction:row;gap:6px}
@media(max-width:780px){.mbar{display:flex}body{padding-bottom:58px}}

/* ---------- footer ---------- */
footer{background:#071D40;color:rgba(255,255,255,.55);padding:64px 0 36px;font-size:14px}
.ft{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.ft h5{color:#fff;font-size:15px;margin-bottom:14px}
.ft ul{list-style:none;line-height:2.1}
.ft a:hover{color:#fff}
.ft .brand{margin-bottom:18px}
.ft-tel{font-family:var(--num);font-size:26px;color:#fff;font-weight:700;line-height:1.2}
.copy{border-top:1px solid rgba(255,255,255,.08);margin-top:44px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}
@media(max-width:900px){.ft{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.ft{grid-template-columns:1fr}}

/* ---------- page hero (sub pages) ---------- */
.phero{background:var(--ink);color:#fff;padding:150px 0 90px;position:relative;overflow:hidden}
.phero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse 50% 80% at 85% 20%,rgba(255,122,26,.22),transparent 70%)}
.phero::after{content:"";position:absolute;inset:0;background:url(/static/world-dots.svg) right center/auto 120% no-repeat;opacity:.5;mask-image:linear-gradient(90deg,transparent 30%,#000)}
.phero .wrap{position:relative;z-index:2}
.phero h1{font-size:clamp(36px,5.4vw,66px);line-height:1.15}
.phero p.lead{font-size:clamp(16px,1.6vw,19px);color:rgba(255,255,255,.75);max-width:620px;margin-top:22px}
.crumbs{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:22px;letter-spacing:.05em}
.crumbs a:hover{color:#fff}

/* ---------- motion system ---------- */
.sprog{position:fixed;left:0;top:0;height:3px;width:100%;background:linear-gradient(90deg,#FF7A1A,#FFB27A);transform-origin:0 50%;transform:scaleX(0);z-index:80;pointer-events:none}
.btn{transition:transform .25s var(--ease),box-shadow .25s,background .2s,color .2s}
.btn-red{background:linear-gradient(135deg,#FF8A33,#FF6A0A);color:#fff;box-shadow:0 12px 28px -12px rgba(255,106,10,.75),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-red:hover{box-shadow:0 18px 34px -12px rgba(255,106,10,.9),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-line{border-color:var(--ink);color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.tilt{transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;will-change:transform;position:relative}
.tilt::before{content:"";position:absolute;inset:0;border-radius:inherit;background:radial-gradient(circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.35),transparent 45%);opacity:0;transition:opacity .3s;pointer-events:none;z-index:1}
.tilt:hover::before{opacity:1}
.rv{transform:translateY(34px);filter:blur(4px);transition:opacity .9s var(--ease),transform .9s var(--ease),filter .9s var(--ease)}
.rv.in{filter:none}
::selection{background:#FF7A1A;color:#fff}
@media(prefers-reduced-motion:reduce){.rv{filter:none!important}}