:root{
  --brand:#0066ff;
  --brand2:#003399;
  --brandHover:#0052cc;

  --ink:#0f172a;
  --text:#333;
  --muted:#667085;

  --bg:#f4f7f9;
  --card:#ffffff;

  --bd:#e6ebf2;
  --bd2:#eef2f6;

  --shadow1:0 4px 6px rgba(0,0,0,.05);
  --shadow2:0 6px 18px rgba(0,0,0,.05);
  --shadow3:0 18px 38px rgba(0,0,0,.10);
}

*{margin:0;padding:0;box-sizing:border-box}

body{
  font-family:"微软雅黑","新宋体","黑体";
  line-height:1.6;
  color:var(--text);
  background:var(--bg);
}

.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* =========================
   Header / Nav
========================= */
#siteHeader{position:sticky;top:0;z-index:1000}

header{
  background:#fff;
  padding:14px 0;
  box-shadow:0 2px 10px rgba(0,0,0,.05);
}

.nav-content{
  position:relative;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
}

/* logo */
.logo{display:flex;align-items:center;gap:10px;white-space:nowrap}
.logo-img{
  width:80px;height:50px;
  border-radius:10px;
  object-fit:cover;
  display:block;
  box-shadow:0 8px 18px rgba(0,0,0,.08);
}
.logo-txt{display:flex;flex-direction:column;line-height:1.05}
.logo-en{font-size:14px;font-weight:normal;letter-spacing:.6px;color:var(--ink);opacity:.92}
.logo-cn{margin-top:3px;font-size:18px;font-weight:normal;letter-spacing:.2px;color:var(--brand)}

/* nav panel (desktop inline, mobile dropdown) */
.nav-panel{
  display:flex;
  align-items:center;
  gap:18px;
}

.nav-links{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 14px;
  justify-content:flex-end;
}
.nav-links a{
  text-decoration:none;
  color:#666;
  font-size:14px;
  padding:8px 10px;
  border-radius:8px;
  transition:background .2s ease,color .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{background:rgba(0,102,255,.08);color:var(--brandHover)}

.nav-actions{display:flex;gap:10px;align-items:center;white-space:nowrap}
.nav-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:8px 12px;
  border-radius:10px;
  text-decoration:none;
  font-weight:800;
  font-size:13px;
  border:1px solid rgba(0,0,0,.08);
  color:var(--ink);
  background:#fff;
  transition:transform .2s ease,background .2s ease,border-color .2s ease;
}
.nav-btn:hover{
  transform:translateY(-1px);
  border-color:rgba(0,102,255,.35);
  background:rgba(0,102,255,.06);
}
.nav-btn.primary{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.nav-btn.primary:hover{background:var(--brandHover);border-color:var(--brandHover)}

/* mobile toggle */
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:8px 12px;
  border-radius:12px;
  border:1px solid rgba(0,0,0,.10);
  background:#fff;
  color:var(--ink);
  font-weight:1000;
  font-size:13px;
  cursor:pointer;
  user-select:none;
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
}
.nav-toggle:hover{transform:translateY(-1px);border-color:rgba(0,102,255,.35);background:rgba(0,102,255,.06)}
.nav-toggle:active{transform:translateY(0)}
.nav-toggle-ico{width:18px;height:14px;position:relative;display:inline-block}
.nav-toggle-ico:before,
.nav-toggle-ico:after,
.nav-toggle-ico i{
  content:"";
  position:absolute;
  left:0;right:0;
  height:2px;border-radius:2px;
  background:var(--ink);
  transition:transform .18s ease,opacity .18s ease;
}
.nav-toggle-ico:before{top:2px}
.nav-toggle-ico i{top:50%;transform:translateY(-50%)}
.nav-toggle-ico:after{bottom:2px}

/* open state icon */
body.nav-open .nav-toggle-ico i{opacity:0}
body.nav-open .nav-toggle-ico:before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle-ico:after{transform:translateY(-6px) rotate(-45deg)}

/* =========================
   Hero
========================= */
.hero{
  position:relative;
  color:#fff;
  padding:84px 0;
  text-align:center;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand) 0%, var(--brand2) 100%);
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  opacity:.85;
  background:
    radial-gradient(900px 420px at 18% 25%, rgba(255,255,255,.18) 0%, rgba(255,255,255,0) 60%),
    radial-gradient(760px 380px at 82% 40%, rgba(0,0,0,.22) 0%, rgba(0,0,0,0) 62%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1600' height='720' viewBox='0 0 1600 720'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0' stop-color='%23ffffff' stop-opacity='.20'/%3E%3Cstop offset='1' stop-color='%23ffffff' stop-opacity='.00'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='1600' height='720' fill='none'/%3E%3Cg fill='none' stroke='url(%23g)' stroke-width='2'%3E%3Cpath d='M120 520 C 260 380, 360 380, 520 280 S 860 140, 1120 260 S 1400 440, 1520 320'/%3E%3Cpath d='M80 420 C 240 300, 360 300, 520 220 S 880 80, 1180 220 S 1440 460, 1560 360'/%3E%3Cpath d='M200 620 C 360 480, 520 500, 680 380 S 980 220, 1220 320 S 1420 520, 1540 460'/%3E%3C/g%3E%3Cg fill='%23ffffff' fill-opacity='.14'%3E%3Ccircle cx='520' cy='280' r='6'/%3E%3Ccircle cx='680' cy='380' r='5'/%3E%3Ccircle cx='1120' cy='260' r='6'/%3E%3Ccircle cx='1180' cy='220' r='5'/%3E%3Ccircle cx='1520' cy='320' r='6'/%3E%3C/g%3E%3Cg transform='translate(1040 150)'%3E%3Cpath d='M60 10 L110 26 V68 C110 102 88 127 60 140 C32 127 10 102 10 68 V26 L60 10 Z' fill='none' stroke='%23ffffff' stroke-opacity='.22' stroke-width='3'/%3E%3Cpath d='M42 74 l12 12 l26 -30' fill='none' stroke='%23ffffff' stroke-opacity='.26' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/g%3E%3Cg fill='%23ffffff' fill-opacity='.08'%3E%3Cpath d='M310 120 l120 0 l-70 70 l-120 0 z'/%3E%3Cpath d='M1320 560 l140 0 l-80 80 l-140 0 z'/%3E%3C/g%3E%3C/svg%3E");
  background-size:auto,auto,cover;
  background-position:center;
}
.hero::after{
  content:"";
  position:absolute;inset:-2px;
  pointer-events:none;
  background:linear-gradient(180deg, rgba(0,0,0,.18) 0%, rgba(0,0,0,.02) 50%, rgba(0,0,0,.28) 100%);
  opacity:.9;
}
.hero .container{position:relative;z-index:2}
.hero h1{font-size:44px;margin-bottom:14px;letter-spacing:.2px}
.hero p{font-size:18px;opacity:.92;margin-bottom:22px}
.hero-tags{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero .tag{
  display:inline-block;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  color:rgba(255,255,255,.92);
  font-size:13px;
  letter-spacing:.2px;
  backdrop-filter:blur(6px);
}

/* =========================
   Buttons
========================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:15px 18px;
  background:var(--brand);
  color:#fff;
  text-decoration:none;
  border-radius:10px;
  font-weight:900;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 10px 18px rgba(0,102,255,.10);
}
.btn:hover{background:var(--brandHover);transform:translateY(-1px);box-shadow:0 14px 22px rgba(0,102,255,.16)}
.price-card .btn{width:100%}

/* =========================
   Common Titles
========================= */
.section-title{text-align:center;margin:60px 0 40px;font-size:32px}

/* =========================
   Features
========================= */
.features-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
  gap:20px;
  margin-bottom:60px;
}
.feature-card{
  background:var(--card);
  padding:30px;
  border-radius:12px;
  text-align:center;
  transition:transform .3s ease;
  box-shadow:var(--shadow1);
}
.feature-card p{font-size:14px}
.feature-card:hover{transform:translateY(-5px)}
.feature-icon{font-size:40px;margin-bottom:15px;display:block}

/* =========================
   Pricing Cards
========================= */
.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:30px}
.price-card{
  background:var(--card);
  border-radius:16px;
  padding:40px;
  border:1px solid #eee;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow2);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.price-card::before{
  content:"";
  position:absolute;left:0;top:0;height:4px;width:100%;
  background:rgba(0,102,255,.22);
  opacity:0;
  transition:opacity .22s ease;
}
.price-card:hover{
  transform:translateY(-6px);
  border-color:rgba(0,102,255,.38);
  box-shadow:var(--shadow3);
}
.price-card:hover::before{opacity:1}
.price-card.popular{border:2px solid var(--brand)}
.price-card.popular::before{opacity:1;background:rgba(0,102,255,.55)}
.popular-badge{
  position:absolute;top:10px;right:-30px;
  background:#ff9900;color:#fff;
  padding:5px 40px;
  transform:rotate(45deg);
  font-size:12px;
  letter-spacing:.2px;
}
.price-card h3{font-size:24px;margin-bottom:15px}
.price-amount{font-size:36px;font-weight:900;color:var(--brand);margin-bottom:20px}
.price-amount span{font-size:16px;color:#888;font-weight:700}
.specs-list{list-style:none;margin-bottom:30px}
.specs-list li{
  padding:10px 0;
  border-bottom:1px dashed #eee;
  color:#444;
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.specs-list li:last-child{border-bottom:none}
.spec-txt{min-width:0;line-height:1.65}

/* 产品参数图标：精简版（无边框/无背景） */
.spec-ico{
  width:18px;height:18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 18px;
  margin-top:2px;
  background:transparent !important;
  border:none !important;
  border-radius:0 !important;
  opacity:.95;
}
.spec-ico svg{width:18px;height:18px;display:block}
.spec-ico svg path,
.spec-ico svg circle,
.spec-ico svg rect,
.spec-ico svg line,
.spec-ico svg polyline,
.spec-ico svg polygon{
  stroke:var(--brand);
  stroke-width:2;
  fill:none;
  stroke-linecap:round;
  stroke-linejoin:round;
}

/* =========================
   Carriers
========================= */
.carriers-section{margin-top:70px;margin-bottom:10px}
.carriers-wrap{
  background:var(--card);
  border:1px solid #eef2f6;
  border-radius:16px;
  padding:26px;
  box-shadow:0 10px 24px rgba(0,0,0,.05);
}
.carriers-title{text-align:center;font-size:22px;margin:0 0 8px;color:var(--ink);font-weight:900}
.carriers-desc{text-align:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.carriers-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px;align-items:stretch}
.carrier-card{
  border:1px solid #eef2f6;
  border-radius:14px;
  background:linear-gradient(180deg,#fff 0%,#f8fbff 100%);
  padding:14px;
  display:flex;
  gap:12px;
  align-items:center;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.carrier-card:hover{transform:translateY(-2px);border-color:rgba(0,102,255,.25);box-shadow:0 10px 18px rgba(0,0,0,.06)}
.carrier-logo{
  width:42px;height:42px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(0,102,255,.08);
  flex:0 0 42px;
  overflow:hidden;
}
.carrier-meta{min-width:0}
.carrier-name{font-weight:900;color:var(--ink);font-size:14px;line-height:1.2;margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.carrier-sub{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* =========================
   Addons Table
========================= */
.addons-section{margin-top:34px;margin-bottom:10px}
.addons-wrap{
  background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%);
  border:1px solid #e9eff7;
  border-radius:18px;
  padding:28px;
  box-shadow:0 14px 30px rgba(15,23,42,.06);
  position:relative;
  overflow:hidden;
}
.addons-wrap::before{
  content:"";
  position:absolute;inset:-2px;
  pointer-events:none;
  background:
    radial-gradient(900px 420px at 16% 10%, rgba(0,102,255,.12) 0%, rgba(0,102,255,0) 58%),
    radial-gradient(860px 420px at 86% 20%, rgba(15,23,42,.06) 0%, rgba(15,23,42,0) 60%);
  opacity:.9;
}
.addons-wrap > *{position:relative;z-index:1}

.addons-title{text-align:center;font-size:22px;margin:0 0 8px;color:var(--ink);font-weight:1000;letter-spacing:.2px}
.addons-desc{text-align:center;color:var(--muted);font-size:13px;margin-bottom:18px}

.addons-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid #e6edf5;
  border-radius:16px;
  overflow:hidden;
  background:#fff;
  box-shadow:0 10px 22px rgba(0,0,0,.04);
}
.addons-table thead th{
  text-align:left;
  font-size:13px;
  color:#475467;
  background:linear-gradient(180deg,#f5f9ff 0%, #ffffff 100%);
  padding:14px 16px;
  border-bottom:1px solid #e6edf5;
  white-space:nowrap;
}
.addons-table tbody td{
  padding:14px 16px;
  border-bottom:1px dashed #eaf0f7;
  font-size:13px;
  color:var(--ink);
  vertical-align:top;
}
.addons-table tbody tr:nth-child(2n) td{background:#fbfdff}
.addons-table tbody tr:hover td{background:rgba(0,102,255,.04)}
.addons-table tbody tr:last-child td{border-bottom:none}

.price-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(0,102,255,.10);
  color:var(--brandHover);
  font-weight:1000;
  font-size:13px;
  white-space:nowrap;
}
.price-pill::before{content:"￥";font-weight:1000;opacity:.7}
.price-pill.free::before{content:""}

.cycle-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(15,23,42,.06);
  color:var(--ink);
  font-weight:900;
  font-size:13px;
  white-space:nowrap;
}
.cycle-pill::before{content:"⏱";font-size:12px;opacity:.75}

.addons-note{
  margin-top:12px;
  color:var(--muted);
  font-size:13px;
  line-height:1.9;
  text-align:center;
}

/* =========================
   Article Sections (Guide / Datacenter)
========================= */
.article-section{
  padding:10px 0 0;
  margin:40px 0 0;
}
.article-wrap{
  background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%);
  border:1px solid #e9eff7;
  border-radius:18px;
  padding:26px;
  box-shadow:0 14px 30px rgba(15,23,42,.06);
  position:relative;
  overflow:hidden;
}
.article-wrap::before{
  content:"";
  position:absolute;inset:-2px;
  pointer-events:none;
  background:
    radial-gradient(900px 420px at 12% 10%, rgba(0,102,255,.10) 0%, rgba(0,102,255,0) 58%),
    radial-gradient(860px 420px at 88% 16%, rgba(15,23,42,.05) 0%, rgba(15,23,42,0) 60%);
  opacity:.9;
}
.article-wrap > *{position:relative;z-index:1}

.article-hd{text-align:center;margin-bottom:16px}
.article-title{font-size:22px;color:var(--ink);font-weight:1000;letter-spacing:.2px;margin:0 0 8px}
.article-sub{font-size:14px;color:var(--muted);line-height:1.9;margin:0}

.article-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.article-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.article-card{
  background:#fff;
  border:1px solid #eef2f6;
  border-radius:16px;
  padding:16px 16px;
  box-shadow:0 10px 22px rgba(0,0,0,.04);
}
.article-card h3{
  margin:0 0 8px;
  font-size:16px;
  color:var(--ink);
  font-weight:1000;
  line-height:1.45;
}
.article-card p{
  margin:0;
  color:#556070;
  font-size:14px;
  line-height:1.95;
}
.article-card strong{color:var(--ink)}
.article-note{
  margin-top:12px;
  color:var(--muted);
  font-size:13px;
  line-height:1.95;
  text-align:center;
}

/* =========================
   FAQ
========================= */
.faq-section{
	background: #fff;
	margin-top: 30px;
	padding-top: 10px;
	padding-right: 0;
	padding-bottom: 30px;
	padding-left: 0;
}
.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(450px,1fr));gap:30px}
.faq-item{
  padding:22px 22px;
  border:1px solid var(--bd2);
  border-radius:14px;
  background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%);
  box-shadow:0 10px 22px rgba(0,0,0,.04);
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item h4{font-size:18px;color:var(--ink);margin:0;font-weight:1000;line-height:1.45}
.faq-item p{color:#556070;font-size:14px;line-height:1.9;margin:0}
.faq-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--muted);font-size:12px}
.faq-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 10px;border-radius:999px;
  border:1px solid #e6edf5;
  background:rgba(15,23,42,.04);
  white-space:nowrap;
}
.faq-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:4px;align-items:center}
.faq-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid rgba(0,0,0,.08);
  background:#fff;
  color:var(--ink);
  text-decoration:none;
  font-weight:900;
  font-size:13px;
  transition:transform .18s ease,border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.faq-btn:hover{transform:translateY(-1px);border-color:rgba(0,102,255,.30);background:rgba(0,102,255,.05);box-shadow:0 10px 18px rgba(0,0,0,.06)}
.faq-btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.faq-btn.primary:hover{background:var(--brandHover);border-color:var(--brandHover)}
.faq-time{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid #e6edf5;
  background:rgba(15,23,42,.03);
  color:#475467;
  font-size:12px;
  font-weight:900;
  white-space:nowrap;
}
.faq-time svg{width:16px;height:16px;display:block}
.faq-time svg path{stroke:#475467;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* =========================
   Footer
========================= */
footer{
  margin-top:60px;
  background:#070b16;
  color:rgba(255,255,255,.92);
  position:relative;
  overflow:hidden;
}
footer::before{
  content:"";
  position:absolute;inset:-2px;
  pointer-events:none;
  background:
    radial-gradient(980px 520px at 18% 14%, rgba(0,102,255,.45) 0%, rgba(0,102,255,0) 62%),
    radial-gradient(860px 460px at 86% 22%, rgba(255,255,255,.12) 0%, rgba(255,255,255,0) 60%),
    linear-gradient(180deg, rgba(255,255,255,.08) 0%, rgba(255,255,255,0) 38%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1600' height='700' viewBox='0 0 1600 700'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.07' stroke-width='1'%3E%3Cpath d='M-40 520 C 260 380, 380 380, 560 260 S 900 120, 1180 250 S 1440 470, 1680 330'/%3E%3Cpath d='M-80 420 C 210 300, 370 300, 560 210 S 940 60, 1240 210 S 1480 500, 1720 360'/%3E%3Cpath d='M40 620 C 320 480, 520 500, 700 360 S 1040 200, 1280 320 S 1480 540, 1700 450'/%3E%3C/g%3E%3Cg fill='%23ffffff' fill-opacity='.06'%3E%3Ccircle cx='560' cy='260' r='6'/%3E%3Ccircle cx='700' cy='360' r='5'/%3E%3Ccircle cx='1180' cy='250' r='6'/%3E%3Ccircle cx='1240' cy='210' r='5'/%3E%3Ccircle cx='1480' cy='470' r='6'/%3E%3C/g%3E%3C/svg%3E");
  opacity:.95;
}
.footer-inner{position:relative;z-index:2}

/* CTA */
.f-cta{padding:44px 0 26px;border-bottom:1px solid rgba(255,255,255,.10)}
.f-cta-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.f-cta-left{min-width:240px}
.f-cta-title{font-size:22px;font-weight:1000;letter-spacing:.2px;color:#fff;margin-bottom:8px}
.f-cta-sub{color:rgba(255,255,255,.68);font-size:13px;line-height:1.9;max-width:720px}
.f-cta-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.f-btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:11px 14px;
  border-radius:14px;
  text-decoration:none;
  font-weight:1000;
  font-size:13px;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.92);
  transition:transform .18s ease,border-color .18s ease,background .18s ease;
  white-space:nowrap;
}
.f-btn:hover{transform:translateY(-1px);background:rgba(255,255,255,.10);border-color:rgba(158,197,255,.30)}
.f-btn.primary{background:rgba(0,102,255,.24);border-color:rgba(0,102,255,.55);color:#dbeafe}
.f-btn.primary:hover{background:rgba(0,102,255,.32);border-color:rgba(0,102,255,.75)}

/* strip */
.f-strip{padding:18px 0;border-bottom:1px solid rgba(255,255,255,.10)}
.f-strip-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.f-pill{
  border-radius:16px;
  padding:12px 14px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  display:flex;gap:10px;align-items:flex-start;
}
.f-pill-ico{
  width:22px;height:22px;border-radius:8px;
  display:grid;place-items:center;
  background:rgba(158,197,255,.14);
  border:1px solid rgba(158,197,255,.18);
  flex:0 0 22px;
  margin-top:1px;
}
.f-pill b{display:block;color:#fff;font-size:13px;letter-spacing:.2px;margin-bottom:2px}
.f-pill span{display:block;color:rgba(255,255,255,.66);font-size:12px;line-height:1.6}

/* main columns */
.f-main{padding:38px 0 26px}
.f-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:22px;
  align-items:start;
}
.f-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
  font-size:20px;
  font-weight:1000;
  color:#fff;
  letter-spacing:.3px;
}
.f-mark{
  width:40px;height:40px;border-radius:16px;
  background:rgba(158,197,255,.14);
  border:1px solid rgba(158,197,255,.20);
  display:grid;place-items:center;
  box-shadow:0 10px 22px rgba(0,0,0,.20);
}
.f-desc{color:rgba(255,255,255,.68);font-size:13px;line-height:1.95;margin-bottom:14px;max-width:520px}
.f-badges{display:flex;flex-wrap:wrap;gap:8px}
.f-badge{
  display:inline-block;
  padding:7px 10px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  color:rgba(255,255,255,.84);
  font-size:12px;
  white-space:nowrap;
}

.f-col-title{font-size:13px;letter-spacing:.6px;color:rgba(255,255,255,.86);margin-bottom:12px;font-weight:1000}
.f-links a{
  display:flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.70);
  text-decoration:none;
  font-size:13px;
  padding:8px 0;
  transition:color .18s ease,transform .18s ease;
}
.f-links a::before{content:"›";opacity:.6}
.f-links a:hover{color:#9ec5ff;transform:translateX(2px)}

/* contact card */
.f-contact{
  display:flex;
  flex-direction:column;
  gap:10px;
  border-radius:18px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  padding:14px;
}
.f-contact .srow{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:rgba(255,255,255,.72);
  font-size:13px;
  line-height:1.7;
}
.f-contact .k{
  width:52px;
  flex:0 0 52px;
  color:rgba(255,255,255,.92);
  font-weight:1000;
  letter-spacing:.2px;
  opacity:.92;
}
.f-contact .v{flex:1;min-width:0;color:rgba(255,255,255,.70);word-break:break-word}
.f-contact a{color:#9ec5ff;text-decoration:none}
.f-contact a:hover{color:#dbeafe}

/* bottom */
.f-bottom{
  padding:16px 0 22px;
  border-top:1px solid rgba(255,255,255,.10);
  color:rgba(255,255,255,.60);
  font-size:12px;
}
.f-bottom .btm{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
}

/* =========================
   Responsive
========================= */
@media (max-width:980px){
  .nav-toggle{display:inline-flex}

  .nav-panel{
    position:absolute;
    left:0;right:0;
    top:calc(100% + 10px);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:12px;
    padding:14px;
    border-radius:16px;
    border:1px solid var(--bd);
    background:linear-gradient(180deg,#ffffff 0%, #fbfdff 100%);
    box-shadow:0 18px 34px rgba(15,23,42,.12);
  }
  body.nav-open .nav-panel{display:flex}

  .nav-panel .nav-links{
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:6px;
  }
  .nav-panel .nav-links a{
    display:flex;
    padding:10px 12px;
    border-radius:12px;
    border:1px solid rgba(0,0,0,.06);
    background:#fff;
  }
  .nav-panel .nav-links a:hover{
    background:rgba(0,102,255,.06);
    border-color:rgba(0,102,255,.22);
    color:var(--brandHover);
  }

  .nav-panel .nav-actions{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
    white-space:normal;
  }

  .f-strip-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .f-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:768px){
  header{padding:12px 0}
  .logo-img{width:80px;height:50px;border-radius:9px}
  .logo-cn{font-size:16px}
  .logo-en{font-size:12px}

  .hero{padding:68px 0}
  .hero h1{font-size:30px}

  .price-card{padding:28px}
  .carriers-wrap,.addons-wrap,.article-wrap{padding:18px}

  .addons-table{display:block;overflow:auto;-webkit-overflow-scrolling:touch}
  .addons-table thead th,.addons-table tbody td{white-space:nowrap}

  .faq-grid{grid-template-columns:1fr}

  .article-grid{grid-template-columns:1fr}

  .f-strip-grid{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .f-cta-actions{justify-content:flex-start}
  .f-bottom .btm{flex-direction:column;align-items:flex-start}
}