:root{
  --ink:#0a0a0c;
  --ink-2:#121216;
  --paper:#f5f5f7;
  --white:#ffffff;
  --text:#111114;
  --muted:#6e6e78;
  --muted-dark:#9a9aa4;
  --line:#e4e4e9;
  --line-dark:rgba(255,255,255,.09);
  --accent:#0a84ff;
  --accent-soft:rgba(10,132,255,.1);
  --green:#30d158;
  --radius:20px;
  --maxw:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased;line-height:1.6}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:104px 0}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.h2{font-size:clamp(28px,4vw,42px);font-weight:700;letter-spacing:-.02em;line-height:1.2}
.sub{color:var(--muted);font-size:17px;margin-top:14px;max-width:560px}

/* ---------- nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:background .3s,box-shadow .3s,backdrop-filter .3s}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between}
.logo{font-weight:800;font-size:20px;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}
.logo .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.logo .tld{font-weight:600;opacity:.5;font-size:.86em}
.logo .ai{font-weight:800;color:var(--accent);letter-spacing:0}
.nav-links{display:flex;gap:32px;font-size:14.5px;font-weight:500}
.nav-links a{opacity:.85;transition:opacity .2s}
.nav-links a:hover{opacity:1}
.nav-cta{padding:8px 18px;border-radius:99px;background:var(--white);color:var(--ink);font-size:14px;font-weight:600;transition:transform .2s}
.nav-cta:hover{transform:translateY(-1px)}
.nav.on-dark{color:#fff}
.nav.scrolled{background:rgba(255,255,255,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);color:var(--text);box-shadow:0 1px 0 var(--line)}
.nav.scrolled .nav-cta{background:var(--ink);color:#fff}
.menu-btn{display:none;background:none;border:none;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:20px;height:2px;background:currentColor;margin:4px 0;border-radius:2px;transition:.25s}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;z-index:99;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);padding:12px 24px 24px;box-shadow:0 12px 24px rgba(0,0,0,.08)}
.mobile-menu a{display:block;padding:12px 0;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu.open{display:block}
@media (max-width:820px){
  .nav-links,.nav-cta{display:none}
  .menu-btn{display:block}
}

/* ---------- hero ---------- */
.hero{background:var(--ink);color:#fff;padding:170px 0 110px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-260px;right:-160px;width:640px;height:640px;border-radius:50%;background:radial-gradient(circle,rgba(10,132,255,.22),transparent 65%);pointer-events:none}
.hero::after{content:"";position:absolute;bottom:-300px;left:-200px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(90,200,250,.12),transparent 65%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:clamp(36px,5.2vw,58px);font-weight:800;letter-spacing:-.03em;line-height:1.12}
.hero h1 .grad{background:linear-gradient(92deg,#0a84ff,#5ac8fa 70%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lead{margin-top:22px;font-size:18px;color:var(--muted-dark);max-width:480px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:99px;font-size:15.5px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:none}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 24px rgba(10,132,255,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(10,132,255,.45)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.16)}
.btn-ghost:hover{background:rgba(255,255,255,.14)}
.hero-stats{display:flex;gap:40px;margin-top:52px;flex-wrap:wrap}
.hero-stats .num{font-size:24px;font-weight:800;letter-spacing:-.02em}
.hero-stats .lbl{font-size:13px;color:var(--muted-dark);margin-top:2px}

/* hero device card */
.device-wrap{position:relative}
.device-card{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.12);border-radius:24px;padding:28px 28px 24px;backdrop-filter:blur(10px);box-shadow:0 40px 80px rgba(0,0,0,.45)}
.device-head{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted-dark);font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace}
.status{display:flex;align-items:center;gap:7px;color:var(--green)}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--green);position:relative}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1.5px solid var(--green);animation:ping 1.8s ease-out infinite}
@keyframes ping{0%{transform:scale(.6);opacity:1}100%{transform:scale(1.6);opacity:0}}
.mini-stage{padding:34px 10px 10px}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.chip{font-size:12.5px;font-weight:600;padding:6px 13px;border-radius:99px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);color:#d8d8de}
.device-foot{display:flex;justify-content:space-between;margin-top:20px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;color:var(--muted-dark)}
.float-card{position:absolute;background:rgba(18,18,22,.92);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:12px 16px;font-size:13px;box-shadow:0 20px 40px rgba(0,0,0,.4);backdrop-filter:blur(8px)}
.float-card .t{font-weight:700;font-size:13.5px}
.float-card .d{color:var(--muted-dark);font-size:12px;margin-top:2px}
.fc-1{top:-22px;right:-14px;animation:floaty 5s ease-in-out infinite}
.fc-2{bottom:-24px;left:-18px;animation:floaty 5s ease-in-out 1.2s infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:70px}
  .fc-1{right:6px}.fc-2{left:6px}
  .hero{padding:140px 0 90px}
}

/* ---------- marquee logos strip ---------- */
.strip{border-top:1px solid var(--line-dark);background:var(--ink-2);color:var(--muted-dark);padding:18px 0;font-size:13.5px}
.strip-inner{display:flex;gap:36px;justify-content:center;flex-wrap:wrap;font-family:ui-monospace,Menlo,Consolas,monospace}
.strip-inner span b{color:#fff;font-weight:600}

/* ---------- why ---------- */
.why{background:var(--paper)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:56px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(10,10,12,.07)}
.card .no{font-size:13px;font-weight:700;color:var(--accent);font-family:ui-monospace,Menlo,monospace}
.card h3{font-size:18px;font-weight:700;margin:14px 0 8px;letter-spacing:-.01em}
.card p{font-size:14.5px;color:var(--muted)}
@media (max-width:900px){.why-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.why-grid{grid-template-columns:1fr}}

/* ---------- network ---------- */
.net-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.node-card{background:var(--ink);color:#fff;border-radius:24px;padding:32px;box-shadow:0 30px 60px rgba(10,10,12,.18)}
.node-row{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--line-dark)}
.node-row:last-child{border-bottom:none}
.node-row .name{font-weight:700;font-size:15.5px;display:flex;align-items:center;gap:10px}
.node-row .meta{font-size:12.5px;color:var(--muted-dark);font-family:ui-monospace,Menlo,monospace}
.badge{font-size:11px;font-weight:700;padding:4px 10px;border-radius:99px}
.badge.live{background:rgba(48,209,88,.15);color:var(--green)}
.badge.soon{background:rgba(255,255,255,.08);color:var(--muted-dark)}
.pingbars{display:flex;align-items:flex-end;gap:3px;height:26px}
.pingbars i{width:4px;border-radius:2px;background:var(--accent);display:block}
@media (max-width:900px){.net-grid{grid-template-columns:1fr;gap:44px}}

/* ---------- steps ---------- */
.how{background:var(--paper)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:56px}
.step{position:relative;padding:28px 24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.step .n{width:38px;height:38px;border-radius:12px;background:var(--accent-soft);color:var(--accent);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:15px}
.step h3{font-size:16.5px;font-weight:700;margin:18px 0 6px}
.step p{font-size:13.5px;color:var(--muted)}
.step .arrow{position:absolute;right:-22px;top:50%;transform:translateY(-50%);color:#c4c4cc;font-size:20px;z-index:2}
.step:last-child .arrow{display:none}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}.step .arrow{display:none}}
@media (max-width:600px){.steps{grid-template-columns:1fr}}

/* ---------- pricing ---------- */
.toggle{display:inline-flex;background:var(--paper);border:1px solid var(--line);border-radius:99px;padding:4px;margin-top:28px}
.toggle button{border:none;background:transparent;padding:9px 22px;border-radius:99px;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer;font-family:var(--font);transition:.2s}
.toggle button.active{background:var(--ink);color:#fff;box-shadow:0 4px 12px rgba(10,10,12,.2)}
.toggle .save{font-size:11px;color:var(--accent);font-weight:800;margin-left:5px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px;align-items:stretch}
.plan{border:1px solid var(--line);border-radius:24px;padding:34px 30px;background:var(--white);display:flex;flex-direction:column;position:relative;transition:transform .25s,box-shadow .25s}
.plan:hover{transform:translateY(-4px);box-shadow:0 24px 48px rgba(10,10,12,.08)}
.plan.hot{border:2px solid var(--ink);box-shadow:0 24px 48px rgba(10,10,12,.1)}
.plan .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;font-size:12px;font-weight:700;padding:5px 16px;border-radius:99px;white-space:nowrap}
.plan .spec{font-size:13px;color:var(--muted);font-family:ui-monospace,Menlo,monospace}
.plan h3{font-size:21px;font-weight:800;margin:8px 0 4px;letter-spacing:-.01em}
.price{margin:22px 0 4px;display:flex;align-items:baseline;gap:6px}
.price .cur{font-size:20px;font-weight:700;color:var(--muted)}
.price .amt{font-size:44px;font-weight:800;letter-spacing:-.03em;line-height:1}
.price .per{font-size:14px;color:var(--muted)}
.per-note{font-size:12.5px;color:var(--muted);min-height:18px}
.plan ul{list-style:none;margin:22px 0 28px;flex:1}
.plan li{font-size:14px;padding:7px 0;display:flex;gap:10px;align-items:flex-start;color:#3a3a42}
.plan li svg{flex-shrink:0;margin-top:4px}
.plan .btn{justify-content:center}
.plan .btn-dark{background:var(--ink);color:#fff}
.plan .btn-dark:hover{background:#1c1c22}
.price-note{margin-top:26px;font-size:13px;color:var(--muted);text-align:center}
@media (max-width:900px){.plans{grid-template-columns:1fr;max-width:460px;margin-left:auto;margin-right:auto}}

/* rentcc-style 4 plans */
.plans4{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:44px auto 0;max-width:980px;text-align:left}
.svc{font-size:12.5px;color:var(--muted);background:var(--paper);border-radius:10px;padding:10px 14px;margin:14px 0 4px;line-height:1.5}
.svc b{color:var(--text)}
@media (max-width:900px){.plans4{grid-template-columns:1fr}}

/* single plan layout */
.single-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:44px auto 0;max-width:900px;text-align:left;align-items:stretch}
.incl-card{border:1px solid var(--line);border-radius:24px;padding:34px 32px;background:var(--paper)}
.incl-card h3{font-size:19px;font-weight:800;margin-bottom:18px;letter-spacing:-.01em}
.incl-item{display:flex;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14.5px;align-items:flex-start}
.incl-item:last-child{border-bottom:none}
.incl-item .k{font-weight:700;font-size:14.5px}
.incl-item .v{color:var(--muted);font-size:13.5px;margin-top:2px;line-height:1.5}
.addon{margin-top:22px;padding:16px 18px;background:var(--white);border:1px solid var(--line);border-radius:14px;font-size:13px;color:var(--muted);line-height:1.65}
.addon .addon-title{font-weight:700;color:var(--text);font-size:13px;margin-bottom:4px}
@media (max-width:900px){.single-wrap{grid-template-columns:1fr}}

/* ---------- privacy ---------- */
.priv{background:var(--ink);color:#fff}
.priv .sub{color:var(--muted-dark)}
.priv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:56px}
.priv-card{border:1px solid var(--line-dark);border-radius:var(--radius);padding:30px;background:rgba(255,255,255,.03)}
.priv-card .no{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--accent);font-weight:700}
.priv-card h3{font-size:18px;font-weight:700;margin:12px 0 8px}
.priv-card p{font-size:14.5px;color:var(--muted-dark)}
@media (max-width:700px){.priv-grid{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-list{max-width:760px;margin:48px auto 0}
details{border-bottom:1px solid var(--line)}
details summary{list-style:none;cursor:pointer;padding:22px 4px;font-size:16.5px;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:16px}
details summary::-webkit-details-marker{display:none}
details summary .plus{font-size:22px;font-weight:300;color:var(--muted);transition:transform .25s;flex-shrink:0}
details[open] summary .plus{transform:rotate(45deg);color:var(--accent)}
details .ans{padding:0 4px 24px;color:var(--muted);font-size:15px;max-width:680px}

/* ---------- cta ---------- */
.cta{background:linear-gradient(160deg,#0a0a0c,#10131c);color:#fff;text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:700px;height:400px;background:radial-gradient(ellipse,rgba(10,132,255,.25),transparent 65%)}
.cta-inner{position:relative;z-index:1}
.cta h2{font-size:clamp(30px,4.4vw,48px);font-weight:800;letter-spacing:-.02em}
.cta p{color:var(--muted-dark);margin:16px auto 36px;max-width:460px}

/* ---------- footer ---------- */
footer{background:var(--ink);color:var(--muted-dark);padding:56px 0 40px;font-size:13.5px}
.foot-grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.foot-links{display:flex;gap:28px;flex-wrap:wrap}
.foot-links a:hover{color:#fff}
.foot-note{margin-top:36px;padding-top:24px;border-top:1px solid var(--line-dark);font-size:12.5px;line-height:1.8;color:#7a7a84}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
/* ============ 新增：导航当前页高亮 ============ */
.nav-links a.active{color:var(--accent);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent);border-radius:2px}
.nav-links a{position:relative}

/* ============ 新增：客服悬浮按钮 ============ */
.support-btn{position:fixed;right:22px;bottom:22px;z-index:9000;display:flex;align-items:center;gap:8px;
  background:var(--accent);color:#fff;border:none;border-radius:999px;padding:12px 18px;font-size:14px;font-weight:600;
  cursor:pointer;box-shadow:0 10px 30px rgba(10,132,255,.35);transition:transform .18s ease,box-shadow .18s ease}
.support-btn:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(10,132,255,.45)}
.support-btn svg{flex-shrink:0}
.support-btn .pulse-dot{width:8px;height:8px;border-radius:50%;background:#7dffb0;box-shadow:0 0 0 0 rgba(125,255,176,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(125,255,176,0)}100%{box-shadow:0 0 0 0 rgba(125,255,176,0)}}

.support-panel{position:fixed;right:22px;bottom:88px;z-index:9001;width:320px;max-width:calc(100vw - 32px);
  background:var(--white);border-radius:16px;box-shadow:0 24px 60px rgba(0,0,0,.22);overflow:hidden;
  opacity:0;visibility:hidden;transform:translateY(12px) scale(.98);transition:all .2s ease;border:1px solid var(--line)}
.support-panel.open{opacity:1;visibility:visible;transform:translateY(0) scale(1)}
.support-head{background:linear-gradient(135deg,#0a0a0c,#1c1c22);color:#fff;padding:16px 18px;display:flex;justify-content:space-between;align-items:center}
.support-head h4{margin:0;font-size:15px;font-weight:600}
.support-head p{margin:4px 0 0;font-size:12px;color:var(--muted-dark)}
.support-close{background:none;border:none;color:#fff;opacity:.7;cursor:pointer;font-size:20px;line-height:1}
.support-body{padding:14px}
.support-item{display:flex;gap:12px;align-items:flex-start;padding:12px;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;text-decoration:none;color:var(--text);transition:border-color .15s ease,background .15s ease}
.support-item:hover{border-color:rgba(10,132,255,.4);background:var(--accent-soft,#f2f8ff)}
.support-item .si-ico{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px}
.support-item .si-k{font-size:13.5px;font-weight:600}
.support-item .si-v{font-size:12px;color:var(--muted);margin-top:2px;word-break:break-all}
.support-qr{text-align:center;padding:8px 0 2px}
.support-qr img{width:150px;height:150px;border-radius:10px;border:1px solid var(--line)}
.support-foot{padding:0 14px 14px;font-size:11.5px;color:var(--muted);line-height:1.6}

/* ============ 新增：表单 / 认证 ============ */
.auth-wrap{max-width:420px;margin:0 auto}
.auth-card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:30px;box-shadow:0 18px 50px rgba(0,0,0,.06)}
.auth-tabs{display:flex;gap:6px;background:var(--paper);border-radius:12px;padding:4px;margin-bottom:22px}
.auth-tabs button{flex:1;border:none;background:none;padding:10px;border-radius:9px;font-size:14px;font-weight:600;color:var(--muted);cursor:pointer;transition:.15s}
.auth-tabs button.on{background:var(--white);color:var(--text);box-shadow:0 2px 8px rgba(0,0,0,.08)}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:600;color:var(--text);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px;font-family:inherit;background:var(--white);color:var(--text);transition:border-color .15s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field .hint{font-size:11.5px;color:var(--muted);margin-top:5px}
.btn-block{width:100%;justify-content:center}
.alert{padding:11px 14px;border-radius:10px;font-size:13px;margin-bottom:14px;display:none}
.alert.show{display:block}
.alert.err{background:#fff1f0;color:#c0271e;border:1px solid #ffd4d0}
.alert.ok{background:#f0fdf5;color:#137a45;border:1px solid #c6f0d8}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:12px;margin:18px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}

/* ============ 新增：账户页 ============ */
.acct-grid{display:grid;grid-template-columns:260px 1fr;gap:22px;align-items:start}
.acct-side{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:22px}
.acct-avatar{width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;margin-bottom:12px}
.acct-email{font-weight:600;font-size:14.5px;word-break:break-all}
.acct-meta{font-size:12px;color:var(--muted);margin-top:4px}
.acct-nav{margin-top:18px;display:flex;flex-direction:column;gap:2px}
.acct-nav a{padding:9px 12px;border-radius:9px;font-size:13.5px;color:var(--muted);text-decoration:none}
.acct-nav a:hover{background:var(--paper);color:var(--text)}
.acct-nav a.danger{color:#c0271e}
.panel{background:var(--white);border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:20px}
.panel h3{margin:0 0 4px;font-size:17px}
.panel .p-sub{font-size:12.5px;color:var(--muted);margin-bottom:18px}
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:600}
.badge.pending{background:#fff8e6;color:#8a6100}
.badge.active{background:#eafaf0;color:#137a45}
.badge.done{background:var(--paper);color:var(--muted)}
.ord-list{display:flex;flex-direction:column;gap:12px}
.ord{border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.ord-top{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.ord-plan{font-weight:600;font-size:14px}
.ord-meta{font-size:12px;color:var(--muted);margin-top:6px;line-height:1.7}
.empty{text-align:center;padding:36px 16px;color:var(--muted);font-size:13.5px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media (max-width:860px){.acct-grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}}

/* ============ 新增：帮助中心 ============ */
.help-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.help-card{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px}
.help-card h4{margin:0 0 8px;font-size:15.5px}
.help-card p{margin:0;font-size:13.5px;color:var(--muted);line-height:1.75}
.help-card ol,.help-card ul{margin:8px 0 0;padding-left:18px;font-size:13.5px;color:var(--muted);line-height:1.8}
@media (max-width:860px){.help-grid{grid-template-columns:1fr}}

/* toast */
.toast{position:fixed;left:50%;bottom:36px;transform:translateX(-50%) translateY(20px);z-index:9100;
  background:#111114;color:#fff;padding:12px 20px;border-radius:10px;font-size:13.5px;opacity:0;pointer-events:none;transition:all .22s ease}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ============ 子页面头部 ============ */
.page-head{padding:150px 0 44px;text-align:center;background:var(--paper);border-bottom:1px solid var(--line)}
.page-head h1{margin:0 0 12px;font-size:clamp(30px,4.4vw,46px);font-weight:800;letter-spacing:-.02em}
.page-head p{margin:0 auto;max-width:620px;font-size:15.5px;color:var(--muted);line-height:1.8}
.page-body{padding:72px 0 104px}

/* ============ 支付页 ============ */
.pay-wrap{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:24px;align-items:start;max-width:960px;margin:0 auto}
.pay-main{min-width:0}
.pay-side{position:sticky;top:88px}
.pay-side .panel{background:var(--paper);border-color:transparent}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-head h3{margin:0}

.pay-amount{font-size:40px;font-weight:800;letter-spacing:-.03em;line-height:1.1;color:var(--ink);display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.pay-amount span{font-size:12px;font-weight:600;letter-spacing:0;color:var(--muted);background:var(--paper);padding:4px 10px;border-radius:99px}
.pay-rows{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.pay-row{display:flex;justify-content:space-between;gap:16px;padding:7px 0;font-size:13px}
.pay-row span{color:var(--muted);flex:none}
.pay-row b{font-weight:600;text-align:right;word-break:break-word}

.pay-methods{display:flex;flex-wrap:wrap;gap:10px;margin:4px 0 18px}
.method-btn{padding:10px 18px;border-radius:10px;border:1px solid var(--line);background:var(--white);color:var(--text);font-size:13.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:.15s}
.method-btn:hover{border-color:#c9c9d2}
.method-btn.on{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}

.qr-box{text-align:center;padding:18px;border:1px dashed var(--line);border-radius:12px;background:var(--paper);margin-bottom:18px}
.qr-box img{width:180px;height:180px;object-fit:contain;margin:0 auto;background:#fff;border-radius:8px;padding:6px}
.qr-tip{font-size:12.5px;color:var(--muted);margin-top:10px;line-height:1.8}
.qr-tip b{color:var(--text)}
.qr-fallback{padding:28px 16px;color:var(--muted);font-size:13px;text-align:center;line-height:1.8}

.pay-form{border-top:1px solid var(--line);padding-top:18px}
.pay-warn{margin-top:12px;font-size:11.5px;color:var(--muted);line-height:1.7;background:var(--paper);border-radius:8px;padding:10px 12px}

.pay-list{list-style:none;font-size:12.5px;color:var(--muted);line-height:1.9}
.pay-list li{padding-left:14px;position:relative;margin-bottom:6px}
.pay-list li::before{content:"";position:absolute;left:0;top:9px;width:4px;height:4px;border-radius:50%;background:var(--accent)}
.pay-list code{background:#fff;border:1px solid var(--line);border-radius:4px;padding:1px 5px;font-size:11.5px;color:var(--text)}

/* ============ 账户页补充 ============ */
.badge.todo{background:var(--accent-soft);color:var(--accent)}
.ord-sub{font-size:12px;color:var(--muted);margin-top:3px}
.ord-right{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.ord-amt{font-size:15px;font-weight:700;letter-spacing:-.01em}
.ord-actions{margin-top:12px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ord-hint{font-size:12px;color:var(--muted)}
.ord-hint.ok{color:#137a45}
.btn-sm{padding:8px 16px;font-size:13px;border-radius:9px}
.est-line{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;background:var(--paper);border-radius:10px;padding:14px 16px;margin:4px 0 16px}
.est-line span{font-size:12.5px;color:var(--muted)}
.est-line b{font-size:24px;font-weight:800;letter-spacing:-.02em}
.est-line em{font-size:11.5px;color:var(--muted);font-style:normal;margin-left:auto}

/* ============ 管理后台 ============ */
.admin-body{background:var(--paper)}
.admin-tag{font-size:11.5px;font-weight:700;color:var(--muted);border:1px solid var(--line);padding:5px 12px;border-radius:99px;background:#fff}
.admin-wrap{padding:96px 24px 80px;max-width:1100px;margin:0 auto}
.admin-bar-inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.admin-bar-inner h1{font-size:22px;font-weight:800;letter-spacing:-.02em;margin-right:auto}
.admin-auth{display:flex;gap:8px;align-items:center}
.admin-auth input{padding:9px 12px;border:1px solid var(--line);border-radius:9px;font-size:13px;font-family:inherit;width:200px;background:#fff}
.admin-filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.admin-filters button{padding:7px 14px;border-radius:99px;border:1px solid var(--line);background:#fff;font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit;color:var(--muted)}
.admin-filters button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.admin-stats{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:18px}
.adm-stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.adm-stat b{font-size:20px;font-weight:800;letter-spacing:-.02em}
.adm-stat span{font-size:11.5px;color:var(--muted)}
.admin-list{display:flex;flex-direction:column;gap:12px}
.adm-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.adm-top{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
.adm-id{font-size:11.5px;font-weight:700;color:var(--muted)}
.adm-plan{font-size:14.5px;font-weight:650;margin-top:2px}
.adm-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px;flex:none}
.adm-amt{font-size:16px;font-weight:800;letter-spacing:-.01em}
.adm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px 16px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.adm-kv{display:flex;gap:8px;font-size:12px;min-width:0}
.adm-kv span{color:var(--muted);flex:none}
.adm-kv b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.adm-note{font-size:12px;color:var(--muted);margin-top:10px;background:var(--paper);border-radius:8px;padding:8px 10px}
.adm-pay{margin-top:10px;background:#f7fbff;border:1px solid #d9ecff;border-radius:9px;padding:10px 12px}
.adm-pay-row{display:flex;justify-content:space-between;gap:12px;font-size:12px;padding:3px 0}
.adm-pay-row span{color:var(--muted)}
.adm-pay-row b{font-weight:600;word-break:break-all;text-align:right}
.adm-pay-row.err b{color:#c0392b}
.adm-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.admin-hint{max-width:520px;margin:40px auto;text-align:center;color:var(--muted)}
.admin-hint h2{font-size:18px;color:var(--text);margin-bottom:10px}
.admin-hint code{background:#fff;border:1px solid var(--line);border-radius:5px;padding:2px 6px;font-size:12.5px}

@media (max-width:860px){
  .pay-wrap{grid-template-columns:1fr}
  .pay-side{position:static}
  .admin-stats{grid-template-columns:repeat(2,1fr)}
  .adm-grid{grid-template-columns:1fr 1fr}
  .pay-amount{font-size:32px}
}

/* ============ 账户 / 重置密码 ============ */
.auth-card h3{font-size:20px;font-weight:700;letter-spacing:-.02em;margin:0 0 6px}
.auth-sub{font-size:13px;color:var(--muted);line-height:1.7;margin:0 0 20px}
.auth-note{font-size:11.5px;color:var(--muted);line-height:1.75;margin-top:18px}
.auth-note a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.auth-links{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:14px;font-size:12.5px;color:var(--muted);flex-wrap:wrap}
.auth-links a{color:var(--accent);font-weight:600}
.auth-links a:hover{text-decoration:underline;text-underline-offset:3px}
.auth-back{background:none;border:none;padding:0;margin-bottom:16px;font-family:inherit;font-size:12.5px;font-weight:600;color:var(--muted);cursor:pointer;transition:color .15s}
.auth-back:hover{color:var(--text)}
#forgotView h3,#resetFormWrap h3,#resetDone h3,#resetInvalid h3{margin-bottom:6px}
#forgotView .field:last-of-type{margin-bottom:18px}
#resetFormWrap .field:last-of-type{margin-bottom:18px}
.field[hidden]{display:none}
.auth-wrap .btn-block+.btn-block{margin-top:10px}

/* ============ 申请页（三步 + 粘性摘要） ============ */
.apply-wrap{padding:0 0 96px}
.apply-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:26px;align-items:start}
.apply-main{min-width:0}

.step-block{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:26px 26px 24px;margin-bottom:16px}
.step-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:20px}
.step-no{flex:none;width:28px;height:28px;border-radius:50%;background:var(--ink);color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:1px}
.step-head h2{font-size:17px;font-weight:700;letter-spacing:-.01em;margin:0 0 4px}
.step-head p{font-size:12.5px;color:var(--muted);margin:0;line-height:1.65}

/* 机型卡 */
.device-list{display:grid;gap:10px}
.device{width:100%;text-align:left;font-family:inherit;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:15px 16px;cursor:pointer;transition:border-color .15s,box-shadow .15s,background .15s}
.device:hover{border-color:#c9c9d2}
.device.on{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fbfdff}
.dev-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.dev-name{font-size:14.5px;font-weight:650;color:var(--text)}
.dev-spec{font-size:12px;color:var(--muted);margin-top:2px}
.dev-tag{flex:none;font-size:10.5px;font-weight:700;letter-spacing:.02em;padding:3px 9px;border-radius:99px;background:var(--paper);color:var(--muted);white-space:nowrap}
.dev-tag.ok{background:#eafaf0;color:#137a45}
.dev-tag.wait{background:#fff6e5;color:#9a6a10}
.dev-price{margin-top:10px;display:flex;align-items:baseline;gap:5px}
.dev-price b{font-size:21px;font-weight:800;letter-spacing:-.02em}
.dev-price span{font-size:11.5px;color:var(--muted)}

/* 选项组 */
.opt-group{margin-top:22px}
.opt-label{font-size:12px;font-weight:700;color:var(--text);margin-bottom:9px;letter-spacing:.01em}
.opt-hint{font-size:11.5px;color:var(--muted);line-height:1.7;margin-top:8px}
.period-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.period{display:flex;flex-direction:column;gap:3px;text-align:left;font-family:inherit;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:13px 13px 12px;cursor:pointer;transition:border-color .15s,box-shadow .15s,background .15s}
.period:hover{border-color:#c9c9d2}
.period.on{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:#fbfdff}
.p-name{font-size:12.5px;font-weight:650;color:var(--text)}
.p-price{font-size:16.5px;font-weight:800;letter-spacing:-.02em;color:var(--text)}
.p-note{font-size:10.5px;color:var(--muted);line-height:1.5}

.addon-row{display:flex;align-items:center;justify-content:space-between;gap:14px;border:1px solid var(--line);border-radius:12px;padding:14px 16px;cursor:pointer;transition:border-color .15s,background .15s}
.addon-row:hover{border-color:#c9c9d2}
.addon-text b{display:block;font-size:13.5px;font-weight:650}
.addon-text span{display:block;font-size:11.5px;color:var(--muted);margin-top:3px;line-height:1.6}
.addon-row input[type=checkbox]{flex:none;width:18px;height:18px;accent-color:var(--accent);cursor:pointer}

.qty-box{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.qty-btn{width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--white);font-size:16px;font-weight:600;line-height:1;color:var(--text);cursor:pointer;font-family:inherit;transition:.15s}
.qty-btn:hover{border-color:var(--accent);color:var(--accent)}
#qty{width:52px;height:34px;text-align:center;border:1px solid var(--line);border-radius:9px;font-family:inherit;font-size:14px;font-weight:650;background:var(--paper);color:var(--text)}
.qty-hint{font-size:11.5px;color:var(--muted);margin-left:4px}

/* 更多选项 */
.more{margin-top:18px;border-top:1px solid var(--line);padding-top:14px}
.more summary{cursor:pointer;font-size:12.5px;font-weight:650;color:var(--text);list-style:none;display:flex;align-items:center;gap:8px}
.more summary::-webkit-details-marker{display:none}
.more summary::before{content:"+";display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:5px;background:var(--paper);color:var(--muted);font-size:12px;font-weight:700}
.more[open] summary::before{content:"−"}
.more summary span{font-size:10.5px;font-weight:600;color:var(--muted);background:var(--paper);padding:2px 7px;border-radius:99px}
.more-body{padding-top:16px}

.agree-list{display:grid;gap:12px;margin-bottom:18px}
.check{display:flex;gap:10px;font-size:12px;line-height:1.75;color:var(--muted);cursor:pointer}
.check input[type=checkbox]{flex:none;width:16px;height:16px;margin-top:2px;accent-color:var(--accent);cursor:pointer}
.check b{color:var(--text);font-weight:650}
.check a{color:var(--accent);text-decoration:underline;text-underline-offset:2px}
.btn-lg{padding:15px 24px;font-size:15px;border-radius:12px}

/* 摘要 */
.apply-side{position:sticky;top:84px}
.summary{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 14px 40px rgba(0,0,0,.06)}
.summary-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.summary-head h3{font-size:14.5px;font-weight:700;margin:0}
.summary-head button{background:none;border:none;font-family:inherit;font-size:11.5px;color:var(--muted);cursor:pointer}
.summary-head button:hover{color:var(--text)}
.sum-rows{border-top:1px solid var(--line);padding-top:4px}
.sum-row{display:flex;justify-content:space-between;gap:12px;padding:6px 0;font-size:12px;line-height:1.6}
.sum-row span{color:var(--muted);flex:none}
.sum-row b{font-weight:600;text-align:right;word-break:break-word}
.sum-row s{color:var(--muted-dark);font-weight:400;margin-right:2px}
.sum-total{display:flex;align-items:baseline;justify-content:space-between;gap:12px;border-top:1px solid var(--line);margin-top:10px;padding-top:14px}
.sum-total span{font-size:12.5px;color:var(--muted)}
.sum-total b{font-size:27px;font-weight:800;letter-spacing:-.03em}
.sum-note{font-size:11px;color:var(--muted);line-height:1.7;margin-top:10px}
.sum-compact{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.sum-compact span{font-size:12.5px;color:var(--muted)}
.sum-compact b{font-size:22px;font-weight:800;letter-spacing:-.02em}

@media (max-width:900px){
  .apply-grid{grid-template-columns:1fr;gap:18px}
  .apply-side{position:static}
  .step-block{padding:22px 18px}
  .period-list{grid-template-columns:1fr}
  .p-price{font-size:15px}
}

/* ============ 定价页（三档周期卡） ============ */
.plans3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:44px auto 0;max-width:1080px;text-align:left}
.plan-sub{font-size:13px;color:var(--muted);margin:0 0 6px;line-height:1.65;min-height:44px}
.tier-rows{margin:8px 0 0;border-top:1px solid var(--line)}
.tier{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:13px 0;border-bottom:1px dashed var(--line);transition:opacity .15s}
.tier:hover{opacity:.72}
.tier-k{font-size:13.5px;font-weight:650;color:var(--text);line-height:1.5}
.tier-k span{display:block;font-size:11.5px;font-weight:400;color:var(--muted);margin-top:2px}
.tier-v{flex:none;text-align:right;white-space:nowrap}
.tier-v b{font-size:21px;font-weight:800;letter-spacing:-.02em}
.tier-v em{display:block;font-style:normal;font-size:11px;color:var(--muted);margin-top:1px}
.tier-foot{font-size:12px;color:var(--muted);margin:14px 0 20px}
.plan-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.plan-pair .panel{margin:0;display:flex;flex-direction:column}
.plan-pair .p-sub{margin-bottom:0}
.mini-price{display:flex;align-items:baseline;gap:8px;margin:14px 0 4px}
.mini-price b{font-size:28px;font-weight:800;letter-spacing:-.03em}
.mini-price span{font-size:12px;color:var(--muted)}
.mini-list{list-style:none;margin:14px 0 22px;flex:1}
.mini-list li{font-size:13px;color:#3a3a42;padding:5px 0 5px 16px;position:relative;line-height:1.65}
.mini-list li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;border-radius:50%;background:var(--accent)}

@media (max-width:1000px){.plans3{grid-template-columns:1fr;max-width:560px}}
@media (max-width:860px){.plan-pair{grid-template-columns:1fr}}

/* 账户页：新建申请入口 */
.next-cta{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;background:var(--paper);border-radius:14px;padding:16px 18px}
.next-k{font-size:19px;font-weight:800;letter-spacing:-.02em}
.next-v{font-size:12px;color:var(--muted);margin-top:3px}
.next-cta .btn{flex:none}