/* ===== XHCDNS 设计系统（hotpe.org 风格：蓝绿渐变品牌） ===== */
:root{
  --brand-1:#0ea5e9;      /* sky/blue */
  --brand-2:#10b981;      /* emerald/green */
  --brand-grad:linear-gradient(135deg,#0ea5e9 0%,#10b981 100%);
  --brand-grad-soft:linear-gradient(135deg,#0ea5e915 0%,#10b98115 100%);
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --line:#e2e8f0;
  --bg:#f8fafc; --card:#ffffff; --danger:#ef4444; --warn:#f59e0b; --ok:#10b981;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:"Segoe UI",system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.6; -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-1);text-decoration:none}
a:hover{text-decoration:underline}
.grad-text{background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;border:none;
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;
  background:var(--brand-grad);color:#fff;transition:.15s;box-shadow:var(--shadow)
}
.btn:hover{filter:brightness(1.05);text-decoration:none;transform:translateY(-1px)}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--brand-1);color:var(--brand-1)}
.btn.danger{background:var(--danger);box-shadow:none}
.btn.sm{padding:6px 12px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.input,.select{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;
  font-size:14px;background:#fff;color:var(--ink);transition:.15s;font-family:inherit
}
.input:focus,.select:focus{outline:none;border-color:var(--brand-1);box-shadow:0 0 0 3px #0ea5e933}
label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin:0 0 6px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.center{text-align:center}
.hidden{display:none !important}
.tag{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.tag.ok{background:#d1fae5;color:#047857}
.tag.warn{background:#fef3c7;color:#b45309}
.tag.gray{background:#f1f5f9;color:#475569}
.tag.blue{background:#e0f2fe;color:#0369a1}
.alert{padding:12px 14px;border-radius:10px;font-size:14px;margin:12px 0}
.alert.err{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}
.alert.ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}
.alert.info{background:#eff6ff;color:#1d4ed8;border:1px solid #bfdbfe}

/* ===== 导航 ===== */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink)}
.logo .mark{width:30px;height:30px;border-radius:8px;background:var(--brand-grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px}
.logo .logo-img{height:34px;width:auto;display:block}
a.logo>img.logo-img{display:block}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--ink-2);font-weight:600;font-size:14px}
.nav-links a:hover{color:var(--brand-1);text-decoration:none}

/* ===== Hero ===== */
.hero{padding:72px 0 64px;text-align:left;background:radial-gradient(1200px 400px at 50% -10%,#0ea5e91a,transparent)}
.hero-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center}
.hero h1{font-size:44px;line-height:1.15;margin:0 0 18px;font-weight:800;letter-spacing:-.5px}
.hero p{font-size:17px;color:var(--muted);max-width:540px;margin:0 0 26px}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-right .hero-ns{margin:0;max-width:none}
.stat-row{display:flex;gap:36px;justify-content:center;margin-top:42px;flex-wrap:wrap}
.stat{text-align:center}
.stat b{display:block;font-size:30px;font-weight:800}
.stat span{color:var(--muted);font-size:13px}

/* ===== 区块 ===== */
.section{padding:60px 0}
.section h2{font-size:30px;font-weight:800;margin:0 0 8px;text-align:center}
.section .sub{text-align:center;color:var(--muted);margin:0 0 38px}
.grid{display:grid;gap:20px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
.feature{padding:24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.feature .ic{width:44px;height:44px;border-radius:12px;background:var(--brand-grad-soft);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:14px}
.feature h3{margin:0 0 8px;font-size:17px}
.feature p{margin:0;color:var(--muted);font-size:14px}
.steps{counter-reset:s;display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.step{padding:22px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.step:before{counter-increment:s;content:counter(s);position:absolute;top:-14px;left:20px;width:30px;height:30px;border-radius:50%;background:var(--brand-grad);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.step h4{margin:8px 0 6px;font-size:15px}
.step p{margin:0;color:var(--muted);font-size:13px}
.faq-item{padding:18px 20px;border-radius:12px;border:1px solid var(--line);background:#fff;margin-bottom:12px}
.faq-item h4{margin:0 0 6px;font-size:15px}
.faq-item p{margin:0;color:var(--muted);font-size:14px}

/* ===== 控制台 ===== */
.console{min-height:calc(100vh - 62px);padding:28px 0}
.console-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.console-head h1{font-size:26px;margin:0}
.quota-bar{display:flex;gap:10px;align-items:center}
.domains-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(320px,1fr))}
.domain-card{padding:20px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);cursor:pointer;transition:.15s}
.domain-card:hover{transform:translateY(-2px);border-color:var(--brand-1)}
.domain-card .fd{font-size:22px;font-weight:800}
.domain-card .meta{color:var(--muted);font-size:13px;margin-top:6px}
.empty{padding:60px;text-align:center;color:var(--muted)}

/* 表单/弹层 */
.form-wrap{max-width:440px;margin:60px auto;padding:30px}
.tabs{display:flex;gap:8px;margin-bottom:18px}
.tabs button{flex:1;padding:10px;border:1px solid var(--line);background:#fff;border-radius:10px;font-weight:600;cursor:pointer;color:var(--ink-2)}
.tabs button.active{background:var(--brand-grad);color:#fff;border:none}
.modal-bg{position:fixed;inset:0;background:rgba(15,23,42,.45);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal{background:#fff;border-radius:var(--radius);padding:26px;width:100%;max-width:560px;max-height:88vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.25)}
.modal h3{margin:0 0 16px;font-size:20px}
.row{display:flex;gap:12px}
.row>*{flex:1}
.field{margin-bottom:14px}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th,table.tbl td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line)}
table.tbl th{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.badge-copy{font-size:12px;padding:3px 8px;border:1px solid var(--line);border-radius:6px;cursor:pointer;background:#fff}
.kv{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.kv b{font-weight:600}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 20px;border-radius:10px;font-size:14px;z-index:200;opacity:0;transition:.25s;pointer-events:none}
.toast.show{opacity:1}
.footer{padding:24px 0;border-top:1px solid var(--line);color:var(--muted);font-size:13px;margin-top:40px;background:#fff}
.footer-in{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.footer b{color:var(--brand-1)}
.code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f1f5f9;padding:2px 6px;border-radius:6px;font-size:13px}
@media(max-width:820px){
  .grid.cols-3,.grid.cols-2,.steps{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .nav-links{display:none}
}

/* ===== 首页（DigitalPlat 风格布局）===== */
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--brand-1);margin-bottom:10px}
.sec-head{text-align:center;margin-bottom:40px}
.sec-head .eyebrow{margin-bottom:8px}
.sec-head h2{font-size:30px;font-weight:800;margin:0 0 8px}
.sec-head p{color:var(--muted);margin:0 auto;max-width:640px}
.hero-ns{max-width:760px;margin:46px auto 0;text-align:left}
.ns-panel{background:var(--card);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;text-align:left}
.ns-panel-head{padding:15px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}
.ns-panel-head h3{margin:0;font-size:15px;font-weight:700}
.ns-panel-head span{color:var(--muted);font-size:12px}
.ns-list{display:flex;flex-direction:column}
.ns-item{display:flex;align-items:center;gap:14px;padding:13px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.ns-item:last-child{border-bottom:none}
.ns-item:hover{background:#f8fafc}
.ns-name{font-family:"Cascadia Code",Consolas,monospace;font-size:16px;font-weight:700;color:var(--ink);flex:0 0 auto}
.ns-tags{display:flex;gap:6px;flex:1;min-width:120px}
.ns-desc{color:var(--muted);font-size:12px;margin-left:auto;text-align:right}
.ns-meta{padding:14px 20px;background:#f8fafc;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
.num-grid{display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}
.num-card{padding:26px 24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.num-card .num{font-size:32px;font-weight:800;background:var(--brand-grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.num-card h3{margin:12px 0 8px;font-size:17px}
.num-card p{margin:0;color:var(--muted);font-size:14px}
.num-steps{display:grid;gap:20px;grid-template-columns:repeat(3,1fr)}
.num-step{padding:24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow)}
.num-step .n{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--brand-1)}
.num-step h4{margin:10px 0 6px;font-size:16px}
.num-step p{margin:0;color:var(--muted);font-size:14px}
.chips{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.cta-band{margin-top:10px;padding:56px 24px;border-radius:20px;background:var(--brand-grad-soft);border:1px solid #d6e8f5;text-align:center}
.cta-band h2{margin:0 0 10px;font-size:30px;font-weight:800}
.cta-band p{color:var(--muted);margin:0 auto 26px;max-width:520px}
@media(max-width:820px){
  .num-grid,.num-steps{grid-template-columns:1fr}
  .ns-desc{text-align:left;width:100%;margin-left:0}
  .cta-band{padding:40px 18px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{text-align:center;padding:56px 0 48px}
  .hero p{margin-left:auto;margin-right:auto}
  .hero .cta{justify-content:center}
}

/* ===== 新版多列 footer（Cap 风格）===== */
.footer2{background:#fff;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:40px;color:var(--ink-2);font-size:14px;position:relative;overflow:hidden}
.footer2::before{content:"";position:absolute;left:50%;top:32%;transform:translateX(-50%);width:1900px;height:1900px;border:2px solid rgba(14,165,233,.26);border-radius:50%;pointer-events:none;z-index:0}
.footer2::after{content:"";position:absolute;inset:0;background:url(/static/img/footer-bg.png) center 92%/760px auto no-repeat;opacity:.08;pointer-events:none;z-index:0}
.footer2 .container{position:relative;z-index:1}
.footer2 .footer-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid var(--line);margin-bottom:22px}
.footer-brand .logo-img{height:32px}
.footer-desc{margin:14px 0 0;font-size:13px;line-height:1.7;max-width:300px}
.footer-socials{display:flex;gap:8px;margin-top:16px}
.social-btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-2);font-size:12px;font-weight:700;transition:.15s}
.social-btn:hover{border-color:var(--brand-1);color:var(--brand-1);text-decoration:none}
.footer-col h4{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);margin:0 0 14px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:var(--ink-2)}
.footer-col a:hover{color:var(--brand-1);text-decoration:none}
.footer-bot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;color:var(--muted);font-size:13px}
.footer-bot a{color:var(--muted)}
.footer-bot a:hover{color:var(--brand-1)}
@media(max-width:820px){
  .footer2 .footer-cols{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
}

/* ===== 控制台侧边栏（Cap 风格）===== */
.app-shell{display:flex;align-items:flex-start;gap:0}
.sidebar{position:sticky;top:78px;width:210px;flex-shrink:0;padding:8px 4px 8px 0;border-right:1px solid var(--line);background:transparent}
.side-item{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:9px;color:var(--ink-2);font-size:14px;font-weight:500;margin-bottom:2px;transition:.12s}
.side-item:hover{background:#eef1ff;color:var(--brand-1);text-decoration:none}
.side-item.active{background:linear-gradient(135deg,#e0f2fe,#dbeafe);color:#0c4a6e;font-weight:600}
.side-item .side-ic{width:22px;text-align:center;font-size:16px;line-height:1}
.view-main{flex:1;min-width:0;padding-left:28px}
@media(max-width:820px){
  .app-shell{flex-direction:column;gap:12px}
  .sidebar{position:static;width:100%;display:flex;flex-wrap:wrap;gap:4px;border-right:none;padding-right:0}
  .view-main{padding-left:0}
  .side-item{padding:7px 10px;font-size:13px}
}

/* ===== 全站动效 ===== */
@keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:translateY(0)}}
@keyframes logoIn{from{opacity:0;transform:translateY(-8px) scale(.96)}to{opacity:1;transform:none}}
/* 顶部 logo 入场（基于原图 transform/opacity，非重绘） */
.nav .logo{animation:logoIn .55s cubic-bezier(.2,.7,.3,1) both}
/* Hero 分段入场 */
.hero .eyebrow,.hero h1,.hero p,.hero .cta,.hero .hero-ns{opacity:0;animation:fadeUp .7s cubic-bezier(.2,.7,.3,1) forwards}
.hero .eyebrow{animation-delay:.05s}
.hero h1{animation-delay:.18s}
.hero p{animation-delay:.34s}
.hero .cta{animation-delay:.5s}
.hero .hero-ns{animation-delay:.66s}
/* 滚动进入视口入场（common.js 用 IntersectionObserver 自动添加 .reveal/.in） */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}
/* 卡片 hover 微动效 */
.feature,.num-card,.num-step,.step,.step-box,.faq-item,.cta-band,.ns-panel,.domain-card{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.feature:hover,.num-card:hover,.num-step:hover,.step:hover,.faq-item:hover,.cta-band:hover,.domain-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(15,23,42,.10);border-color:#c7d2fe}
/* 尊重系统"减少动效" */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}