/* ============ VIPSSR 主题 ============ */
:root {
  --bg: #0a0e1a;
  --bg-2: #0f1526;
  --panel: #131a2e;
  --panel-2: #182039;
  --border: #232d4b;
  --text: #e6eaf5;
  --muted: #8a94b3;
  --primary: #6366f1;
  --primary-2: #22d3ee;
  --grad: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #38bdf8;
  --radius: 14px;
  --shadow: 0 10px 40px rgba(0, 0, 0, .35);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --mono: "Cascadia Code", Consolas, "SFMono-Regular", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); background: var(--bg); color: var(--text);
  line-height: 1.6; font-size: 15px; min-height: 100vh; display: flex; flex-direction: column;
}
a { color: var(--primary-2); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .6em; }
code, .mono { font-family: var(--mono); }
main { flex: 1; }

.container { width: min(1200px, 100% - 40px); margin: 0 auto; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.center { text-align: center; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.mt { margin-top: 24px; } .mb { margin-bottom: 24px; }
.flex { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.pre { white-space: pre-wrap; word-break: break-all; }

/* ---------- 顶部导航 ---------- */
.topbar {
  position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px);
  background: rgba(10, 14, 26, .82); border-bottom: 1px solid var(--border);
}
.topbar .container { display: flex; align-items: center; height: 64px; gap: 28px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; color: var(--text); letter-spacing: .5px; }
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-size: 15px; font-weight: 900;
  box-shadow: 0 6px 20px rgba(99, 102, 241, .45);
}
.nav { display: flex; gap: 6px; flex: 1; }
.nav a { color: var(--muted); padding: 8px 14px; border-radius: 8px; font-weight: 500; }
.nav a:hover, .nav a.active { color: var(--text); background: var(--panel); text-decoration: none; }
.nav-right { display: flex; gap: 10px; align-items: center; }
.nav-toggle { display: none; background: none; border: 0; color: var(--text); font-size: 24px; cursor: pointer; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 20px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); font: inherit; font-weight: 600;
  cursor: pointer; transition: .18s; white-space: nowrap;
}
.btn:hover { border-color: var(--primary); text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--grad); border: 0; color: #fff; box-shadow: 0 6px 22px rgba(99, 102, 241, .35); }
.btn-primary:hover { box-shadow: 0 8px 28px rgba(34, 211, 238, .4); }
.btn-ghost { background: transparent; }
.btn-danger { background: rgba(239, 68, 68, .12); border-color: rgba(239, 68, 68, .4); color: #fca5a5; }
.btn-success { background: rgba(34, 197, 94, .14); border-color: rgba(34, 197, 94, .45); color: #86efac; }
.btn-sm { padding: 6px 12px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; transform: none; }
form.inline { display: inline; }

/* ---------- 提示 ---------- */
.flashes { margin: 18px auto 0; display: grid; gap: 10px; }
.flash {
  padding: 12px 16px; border-radius: 10px; border: 1px solid; font-size: 14px;
  display: flex; justify-content: space-between; gap: 10px;
}
.flash-success { background: rgba(34, 197, 94, .1); border-color: rgba(34, 197, 94, .35); color: #86efac; }
.flash-error   { background: rgba(239, 68, 68, .1); border-color: rgba(239, 68, 68, .35); color: #fca5a5; }
.flash-warning { background: rgba(245, 158, 11, .1); border-color: rgba(245, 158, 11, .35); color: #fcd34d; }
.flash-info    { background: rgba(56, 189, 248, .1); border-color: rgba(56, 189, 248, .35); color: #7dd3fc; }
.flash button { background: none; border: 0; color: inherit; cursor: pointer; font-size: 18px; line-height: 1; }
.announce { background: linear-gradient(90deg, rgba(99,102,241,.2), rgba(34,211,238,.15)); border-bottom: 1px solid var(--border); padding: 9px 0; font-size: 14px; text-align: center; }

/* ---------- 首页 Hero ---------- */
.hero { position: relative; padding: 96px 0 80px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -200px -10% auto; height: 700px; z-index: -1;
  background: radial-gradient(closest-side, rgba(99,102,241,.35), transparent 70%),
              radial-gradient(closest-side at 70% 40%, rgba(34,211,238,.22), transparent 70%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .35;
  background-image: linear-gradient(var(--border) 1px, transparent 1px), linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px; mask-image: radial-gradient(ellipse at top, #000 20%, transparent 70%);
}
.hero-inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.badge-pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--panel); font-size: 13px; color: var(--muted); margin-bottom: 22px;
}
.badge-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px var(--success); }
.hero h1 { font-size: clamp(34px, 5vw, 56px); font-weight: 800; letter-spacing: -1px; margin-bottom: 18px; }
.hero p.lead { font-size: 18px; color: var(--muted); max-width: 560px; margin: 0 0 32px; }
.hero-stats { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.hero-stats b { display: block; font-size: 26px; }
.hero-stats span { color: var(--muted); font-size: 13px; }

.terminal {
  background: #0b1020; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; font-family: var(--mono); font-size: 13.5px;
}
.terminal-head { display: flex; gap: 7px; padding: 12px 14px; background: var(--panel); border-bottom: 1px solid var(--border); }
.terminal-head i { width: 11px; height: 11px; border-radius: 50%; background: #ef4444; }
.terminal-head i:nth-child(2) { background: #f59e0b; } .terminal-head i:nth-child(3) { background: #22c55e; }
.terminal-body { padding: 18px 20px; line-height: 1.9; color: #a5b4fc; }
.terminal-body .c { color: var(--muted); } .terminal-body .g { color: #86efac; } .terminal-body .y { color: #fcd34d; }

/* ---------- 区块 ---------- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 { font-size: 32px; }
.section-head p { color: var(--muted); margin: 0; }

.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card-hover { transition: .2s; }
.card-hover:hover { border-color: rgba(99, 102, 241, .6); transform: translateY(-3px); box-shadow: var(--shadow); }
.card h3 { font-size: 18px; }
.card-title { font-size: 16px; font-weight: 700; margin: 0 0 16px; display: flex; justify-content: space-between; align-items: center; }

.feature-icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 22px;
  background: rgba(99, 102, 241, .14); border: 1px solid rgba(99, 102, 241, .3); margin-bottom: 16px;
}
.feature p { color: var(--muted); margin: 0; font-size: 14px; }

.cat-card { display: block; position: relative; overflow: hidden; padding: 32px; color: var(--text); }
.cat-card:hover { text-decoration: none; }
.cat-card .big-icon { position: absolute; right: -10px; bottom: -20px; font-size: 120px; opacity: .08; }
.cat-card ul { padding-left: 18px; color: var(--muted); margin: 14px 0 22px; }

/* ---------- 商品卡片 ---------- */
.product-card { display: flex; flex-direction: column; position: relative; }
.product-card .tag-row { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.product-card h3 { margin-bottom: 6px; }
.product-card .desc { color: var(--muted); font-size: 14px; margin: 0 0 16px; min-height: 22px; }
.spec-list { list-style: none; padding: 0; margin: 0 0 20px; display: grid; gap: 8px; font-size: 14px; }
.spec-list li { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--border); padding-bottom: 7px; }
.spec-list li span:first-child { color: var(--muted); }
.price { display: flex; align-items: baseline; gap: 6px; margin: auto 0 16px; }
.price b { font-size: 32px; font-weight: 800; }
.price small { color: var(--muted); }
.ribbon {
  position: absolute; top: 16px; right: -34px; transform: rotate(45deg); background: var(--grad);
  color: #fff; font-size: 12px; font-weight: 700; padding: 4px 40px;
}
.product-card { overflow: hidden; }

.tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--panel-2); border: 1px solid var(--border); color: var(--muted);
}
.tag-primary { color: #a5b4fc; border-color: rgba(99,102,241,.4); background: rgba(99,102,241,.12); }
.tag-success { color: #86efac; border-color: rgba(34,197,94,.4); background: rgba(34,197,94,.12); }
.tag-warning { color: #fcd34d; border-color: rgba(245,158,11,.4); background: rgba(245,158,11,.12); }
.tag-info    { color: #7dd3fc; border-color: rgba(56,189,248,.4); background: rgba(56,189,248,.12); }
.tag-danger  { color: #fca5a5; border-color: rgba(239,68,68,.4); background: rgba(239,68,68,.12); }
.tag-muted   { color: var(--muted); }

.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 28px; }
.filter-bar a { padding: 7px 16px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); font-size: 14px; }
.filter-bar a:hover { text-decoration: none; color: var(--text); }
.filter-bar a.active { background: var(--grad); color: #fff; border-color: transparent; }

.page-head { padding: 48px 0 28px; }
.page-head h1 { font-size: 32px; margin-bottom: 8px; }

/* 购买时长选择 */
.month-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 8px 0 20px; }
.month-options label { cursor: pointer; }
.month-options input { position: absolute; opacity: 0; pointer-events: none; }
.month-options .opt {
  border: 1px solid var(--border); border-radius: 10px; padding: 12px 8px; text-align: center; transition: .15s;
  background: var(--panel-2);
}
.month-options .opt b { display: block; font-size: 16px; }
.month-options .opt small { color: var(--success); font-size: 12px; }
.month-options input:checked + .opt { border-color: var(--primary); background: rgba(99,102,241,.15); box-shadow: 0 0 0 1px var(--primary) inset; }
.total-line { display: flex; justify-content: space-between; align-items: baseline; padding: 16px 0; border-top: 1px solid var(--border); margin-top: 8px; }
.total-line b { font-size: 28px; }

/* ---------- FAQ ---------- */
.faq details { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
.faq summary::after { content: "+"; color: var(--muted); font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); margin: 12px 0 0; }

.cta { text-align: center; padding: 56px 24px; border-radius: 20px; background: linear-gradient(135deg, rgba(99,102,241,.25), rgba(34,211,238,.18)); border: 1px solid var(--border); }
.cta h2 { font-size: 30px; }

/* ---------- 表单 ---------- */
.auth-wrap { display: grid; place-items: center; padding: 64px 20px; }
.auth-card { width: min(440px, 100%); padding: 36px; }
.auth-card h1 { font-size: 26px; text-align: center; }
.auth-card .sub { text-align: center; color: var(--muted); margin: -6px 0 26px; }
.form-group { margin-bottom: 18px; }
.form-group label, .label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 7px; }
.form-group .hint { font-size: 12.5px; color: var(--muted); margin-top: 6px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=datetime-local], input[type=search], select, textarea {
  width: 100%; padding: 11px 14px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--text); font: inherit; transition: .15s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.2); }
textarea { min-height: 100px; resize: vertical; }
.check { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--primary); }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }

/* ---------- 用户中心 / 后台布局 ---------- */
.panel-layout { display: grid; grid-template-columns: 230px 1fr; gap: 28px; padding: 32px 0 64px; }
.side-nav { position: sticky; top: 88px; align-self: start; padding: 14px; }
.side-nav .who { padding: 8px 10px 16px; border-bottom: 1px solid var(--border); margin-bottom: 10px; }
.side-nav .who b { display: block; }
.side-nav a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 9px; color: var(--muted); font-weight: 500; }
.side-nav a:hover { background: var(--panel-2); color: var(--text); text-decoration: none; }
.side-nav a.active { background: rgba(99,102,241,.15); color: #c7d2fe; }
.side-nav .count { margin-left: auto; font-size: 12px; background: var(--danger); color: #fff; border-radius: 999px; padding: 0 7px; }
.panel-content h1 { font-size: 24px; margin-bottom: 20px; }

.stat-card { padding: 20px; }
.stat-card .label { color: var(--muted); font-size: 13px; font-weight: 500; margin: 0 0 6px; }
.stat-card .value { font-size: 28px; font-weight: 800; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--panel); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 13px; background: var(--panel-2); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(255,255,255,.02); }
.empty { text-align: center; padding: 48px 20px; color: var(--muted); }

.kv { display: grid; grid-template-columns: 120px 1fr; gap: 10px 16px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 20px; flex-wrap: wrap; }
.tabs a { padding: 10px 16px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--text); text-decoration: none; }
.tabs a.active { color: var(--text); border-bottom-color: var(--primary); }

.pager { display: flex; gap: 8px; justify-content: center; margin-top: 20px; }

/* ---------- 支付 ---------- */
.pay-box { display: grid; grid-template-columns: 220px 1fr; gap: 28px; align-items: start; }
.qr { background: #fff; border-radius: 12px; padding: 10px; display: grid; place-items: center; }
.qr svg { width: 100%; height: auto; display: block; }
.copy-field { display: flex; gap: 8px; align-items: stretch; margin-bottom: 16px; }
.copy-field .val {
  flex: 1; font-family: var(--mono); background: var(--bg-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 11px 14px; word-break: break-all; font-size: 14px;
}
.copy-field .val.amount { font-size: 22px; font-weight: 800; color: #fcd34d; }
.pay-warning { background: rgba(245,158,11,.08); border: 1px solid rgba(245,158,11,.35); color: #fcd34d; border-radius: 10px; padding: 12px 14px; font-size: 13.5px; }
.countdown { font-family: var(--mono); font-weight: 700; color: var(--primary-2); }
.pulse { display: inline-block; width: 9px; height: 9px; border-radius: 50%; background: var(--warning); margin-right: 6px; animation: pulse 1.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(245,158,11,.6); } 70% { box-shadow: 0 0 0 10px rgba(245,158,11,0); } 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0); } }
.delivery { background: #0b1020; border: 1px solid rgba(34,197,94,.35); border-radius: 12px; padding: 18px; font-family: var(--mono); font-size: 14px; white-space: pre-wrap; word-break: break-all; }

.steps { display: flex; gap: 0; margin: 4px 0 24px; }
.steps .step { flex: 1; text-align: center; position: relative; font-size: 13px; color: var(--muted); }
.steps .step::before { content: attr(data-n); display: grid; place-items: center; width: 30px; height: 30px; margin: 0 auto 8px; border-radius: 50%; background: var(--panel-2); border: 1px solid var(--border); font-weight: 700; position: relative; z-index: 1; }
.steps .step::after { content: ""; position: absolute; top: 15px; left: 50%; width: 100%; height: 1px; background: var(--border); }
.steps .step:last-child::after { display: none; }
.steps .step.done { color: var(--text); }
.steps .step.done::before { background: var(--grad); border-color: transparent; color: #fff; content: "✓"; }
.steps .step.current { color: var(--text); }
.steps .step.current::before { border-color: var(--primary); color: #c7d2fe; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--border); padding: 40px 0 28px; color: var(--muted); font-size: 14px; background: var(--bg-2); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
.footer h4 { color: var(--text); font-size: 14px; }
.footer a { color: var(--muted); display: block; margin-bottom: 6px; }
.footer a:hover { color: var(--text); }
.footer-bottom { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; }

.error-page { text-align: center; padding: 120px 20px; }
.error-page .code { font-size: 96px; font-weight: 900; }

.prose { max-width: 820px; }
.prose h2 { font-size: 20px; margin-top: 28px; }
.prose p, .prose li { color: #c3cae0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1000px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .nav-toggle { display: block; margin-left: auto; }
  .nav, .nav-right { display: none; }
  .topbar.open .container { flex-wrap: wrap; height: auto; padding: 12px 0; }
  .topbar.open .nav, .topbar.open .nav-right { display: flex; flex-direction: column; width: 100%; align-items: stretch; }
  .panel-layout { grid-template-columns: 1fr; }
  .side-nav { position: static; display: flex; flex-wrap: wrap; gap: 4px; }
  .side-nav .who { width: 100%; }
  .pay-box { grid-template-columns: 1fr; }
  .qr { max-width: 240px; margin: 0 auto; }
}
@media (max-width: 600px) {
  .grid-2, .grid-3, .grid-4, .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .month-options { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 52px 0; }
  .hero { padding: 64px 0 56px; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 10px; }
}