/* TG账号购买平台 - 独立样式表 */
:root {
  --blue: #0088cc;
  --blue-2: #2aabee;
  --blue-3: #37aee2;
  --grad: linear-gradient(135deg, #2aabee 0%, #0088cc 100%);
  --ink: #122433;
  --body: #41526499;
  --body-2: #415264;
  --muted: #7c8b9c;
  --bg: #f5f9fd;
  --card: #ffffff;
  --line: #e4edf5;
  --green: #16a34a;
  --orange: #f59e0b;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  color: var(--body-2);
  background: var(--bg);
  line-height: 1.75;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* 顶部通知栏 */
.notice {
  background: var(--grad);
  color: #fff;
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
  letter-spacing: .5px;
}
.notice b { font-weight: 600; }
.notice .dot { margin: 0 10px; opacity: .7; }

/* 头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink); font-size: 19px; }
.logo .plane {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 136, 204, .3);
}
.logo .plane svg { width: 20px; height: 20px; }
.logo em { font-style: normal; color: var(--blue); }

.main-nav { display: flex; align-items: center; gap: 26px; }
.main-nav a { color: var(--body-2); font-size: 15px; position: relative; }
.main-nav a:hover { color: var(--blue); }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 2px;
  background: var(--grad); transition: width .2s;
}
.main-nav a:hover::after { width: 100%; }

.nav-buy {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--grad); color: #fff !important;
  padding: 9px 20px; border-radius: 999px; font-weight: 600;
  box-shadow: 0 6px 16px rgba(0, 136, 204, .35);
}
.nav-buy:hover { transform: translateY(-1px); }

.nav-toggle { display: none; background: none; border: none; font-size: 26px; color: var(--ink); cursor: pointer; }

/* 主视觉 */
.hero {
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(42, 171, 238, .18), transparent 60%),
    radial-gradient(700px 380px at -10% 10%, rgba(55, 174, 226, .14), transparent 55%),
    var(--bg);
  padding: 64px 0 56px;
}
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 44px; align-items: center; }
.hero h1 { font-size: 40px; line-height: 1.3; color: var(--ink); font-weight: 800; }
.hero h1 .hl {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.hero .sub { margin-top: 16px; font-size: 16px; color: var(--body-2); max-width: 520px; }
.hero .tags { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }
.hero .tag {
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 14px; font-size: 13px; color: var(--body-2);
  box-shadow: 0 2px 6px rgba(18, 36, 51, .04);
}
.hero .tag i { font-style: normal; color: var(--blue); margin-right: 4px; }
.hero-cta { margin-top: 28px; display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 12px; font-size: 16px; font-weight: 600;
  cursor: pointer; border: none; transition: transform .15s, box-shadow .15s;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 24px rgba(0, 136, 204, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(0, 136, 204, .42); }
.btn-ghost { background: #fff; color: var(--blue); border: 1.5px solid var(--blue); }
.btn-ghost:hover { background: #f0f8ff; }

.hero-visual { position: relative; }
.chat-box {
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  box-shadow: 0 24px 60px rgba(18, 36, 51, .1);
  overflow: hidden;
}
.chat-head {
  background: var(--grad); color: #fff; padding: 14px 18px;
  display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px;
}
.chat-head .av {
  width: 30px; height: 30px; border-radius: 50%; background: rgba(255,255,255,.25);
  display: flex; align-items: center; justify-content: center;
}
.chat-body { padding: 18px; display: flex; flex-direction: column; gap: 12px; }
.bubble { max-width: 82%; padding: 11px 15px; border-radius: 14px; font-size: 14px; }
.bubble.in { background: #eef6fc; color: var(--body-2); align-self: flex-start; border-bottom-left-radius: 4px; }
.bubble.out { background: var(--grad); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.bubble .tick { font-size: 11px; opacity: .8; margin-left: 6px; }
.float-badge {
  position: absolute; background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 10px 14px; box-shadow: 0 10px 24px rgba(18, 36, 51, .12);
  display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--body-2);
}
.float-badge b { color: var(--ink); }
.fb-1 { top: -18px; right: -8px; }
.fb-2 { bottom: -18px; left: -6px; }
.float-badge .ic {
  width: 32px; height: 32px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
}
.ic-blue { background: #e8f4fc; color: var(--blue); }
.ic-green { background: #e7f7ee; color: var(--green); }

/* 信任条 */
.trustbar { background: #fff; border-bottom: 1px solid var(--line); }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 26px 0; }
.trust-item { display: flex; align-items: center; gap: 12px; }
.trust-item .ic {
  width: 44px; height: 44px; border-radius: 12px; flex: none;
  display: flex; align-items: center; justify-content: center; background: #eef6fc; color: var(--blue);
}
.trust-item b { display: block; color: var(--ink); font-size: 15px; }
.trust-item span { font-size: 13px; color: var(--muted); }

/* 通用 section */
section { padding: 56px 0; }
.sec-head { text-align: center; margin-bottom: 36px; }
.sec-head h2 { font-size: 30px; color: var(--ink); font-weight: 800; }
.sec-head h2 .hl { color: var(--blue); }
.sec-head .bar { width: 46px; height: 4px; border-radius: 4px; background: var(--grad); margin: 14px auto 0; }
.sec-head p { margin-top: 12px; color: var(--muted); font-size: 15px; }

/* 账号类型卡片 */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 26px 24px; position: relative; transition: transform .18s, box-shadow .18s;
}
.prod-card:hover { transform: translateY(-5px); box-shadow: 0 18px 40px rgba(18, 36, 51, .1); }
.prod-card.hot { border-color: #bfe3f5; box-shadow: 0 10px 30px rgba(0, 136, 204, .12); }
.badge {
  position: absolute; top: -12px; right: 20px;
  background: var(--grad); color: #fff; font-size: 12px; font-weight: 600;
  padding: 3px 12px; border-radius: 999px; box-shadow: 0 4px 10px rgba(0,136,204,.3);
}
.prod-card h3 { color: var(--ink); font-size: 19px; }
.prod-card .region { font-size: 13px; color: var(--muted); margin-top: 4px; }
.prod-meta { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.prod-meta li { list-style: none; font-size: 14px; color: var(--body-2); display: flex; gap: 8px; }
.prod-meta li::before { content: "✓"; color: var(--green); font-weight: 700; }
.price-row { margin-top: 18px; display: flex; align-items: baseline; justify-content: space-between; }
.price { font-size: 26px; font-weight: 800; color: var(--ink); }
.price small { font-size: 14px; font-weight: 500; color: var(--muted); }
.prod-buy {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--grad); color: #fff; font-weight: 600; font-size: 15px;
  padding: 10px 22px; border-radius: 10px; box-shadow: 0 6px 14px rgba(0,136,204,.28);
}
.prod-buy:hover { transform: translateY(-1px); }

/* 区服 */
.region-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.region-chip {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 10px; text-align: center; transition: transform .15s, border-color .15s;
}
.region-chip:hover { transform: translateY(-3px); border-color: #bfe3f5; }
.region-chip .flag { font-size: 24px; }
.region-chip b { display: block; color: var(--ink); font-size: 14px; margin-top: 6px; }
.region-chip span { font-size: 12px; color: var(--muted); }

/* 价格表 */
.table-box { background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 15px 18px; text-align: left; font-size: 14.5px; }
thead th { background: #f2f8fd; color: var(--ink); font-weight: 700; font-size: 14px; }
tbody tr { border-top: 1px solid var(--line); }
tbody tr:hover { background: #fafdff; }
td .num { color: var(--ink); font-weight: 600; }
.stock { color: var(--green); font-size: 13px; }

/* 购买流程 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.step { text-align: center; padding: 24px 16px; background: #fff; border: 1px solid var(--line); border-radius: 16px; }
.step .n {
  width: 40px; height: 40px; border-radius: 50%; background: var(--grad); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 17px; margin: 0 auto;
  box-shadow: 0 6px 14px rgba(0,136,204,.3);
}
.step b { display: block; color: var(--ink); margin-top: 14px; font-size: 16px; }
.step p { font-size: 13.5px; color: var(--muted); margin-top: 6px; }

/* 为什么选我们 */
.why { background: #fff; }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.why-item { padding: 24px; border: 1px solid var(--line); border-radius: 16px; }
.why-item .ic {
  width: 48px; height: 48px; border-radius: 12px; background: #eef6fc; color: var(--blue);
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px;
}
.why-item b { color: var(--ink); font-size: 17px; }
.why-item p { font-size: 14px; color: var(--body-2); margin-top: 8px; }

/* FAQ */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 14px; margin-bottom: 12px; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 16px 20px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { font-size: 22px; color: var(--blue); font-weight: 400; transition: transform .2s; }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 20px 18px; color: var(--body-2); font-size: 14.5px; }

/* 文章 */
.art-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.art-card { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; transition: transform .18s, box-shadow .18s; }
.art-card:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(18,36,51,.1); }
.art-card .art-tag {
  display: inline-block; background: #eef6fc; color: var(--blue); font-size: 12px; font-weight: 600;
  padding: 3px 12px; border-radius: 999px; margin-bottom: 12px;
}
.art-card h3 { color: var(--ink); font-size: 19px; line-height: 1.5; }
.art-card p { font-size: 14px; color: var(--body-2); margin-top: 10px; }
.art-card .art-more { margin-top: 14px; color: var(--blue); font-weight: 600; font-size: 14px; }

/* 底部 CTA */
.cta-band { background: var(--grad); color: #fff; text-align: center; padding: 56px 0; }
.cta-band h2 { font-size: 30px; font-weight: 800; }
.cta-band p { margin-top: 12px; opacity: .95; font-size: 15px; }
.cta-band .btn-white {
  margin-top: 24px; display: inline-flex; align-items: center; gap: 8px;
  background: #fff; color: var(--blue); font-weight: 700; font-size: 16px;
  padding: 14px 34px; border-radius: 12px; box-shadow: 0 10px 24px rgba(0,0,0,.18);
}

/* 页脚 */
.site-footer { background: #0e1c2b; color: #9db2c6; padding: 48px 0 32px; }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.site-footer p { font-size: 13.5px; }
.foot-kw { font-size: 13px; line-height: 2; color: #7e95aa; }
.foot-kw a:hover { color: #fff; }
.foot-kw span { margin: 0 8px; color: #3c5266; }
.copyright {
  border-top: 1px solid #1e3346; margin-top: 34px; padding-top: 20px;
  text-align: center; font-size: 12.5px; color: #5f7588;
}
.copyright p + p { margin-top: 6px; }

/* 移动端悬浮购买栏 */
.mobile-cta {
  display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  background: #fff; border-top: 1px solid var(--line); padding: 10px 16px;
  box-shadow: 0 -6px 20px rgba(18,36,51,.08);
}
.mobile-cta .mc-inner { display: flex; align-items: center; gap: 12px; }
.mobile-cta .mc-price { color: var(--ink); font-weight: 700; font-size: 15px; }
.mobile-cta .mc-price small { color: var(--muted); font-weight: 400; font-size: 12px; }
.mobile-cta .mc-buy {
  flex: 1; background: var(--grad); color: #fff; font-weight: 600; text-align: center;
  padding: 13px 0; border-radius: 12px; font-size: 16px;
}
body:has(.mobile-cta) { padding-bottom: 0; }

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { max-width: 480px; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .region-grid { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .art-grid { grid-template-columns: 1fr; }
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 30px; }
  .sec-head h2 { font-size: 24px; }
  .main-nav {
    display: none; position: absolute; top: 66px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: flex-start; gap: 0;
    border-bottom: 1px solid var(--line); padding: 8px 20px 16px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 0; width: 100%; border-bottom: 1px solid #f0f5f9; }
  .nav-toggle { display: block; }
  .prod-grid { grid-template-columns: 1fr; }
  .region-grid { grid-template-columns: repeat(2, 1fr); }
  .mobile-cta { display: block; }
  table { font-size: 13px; }
  th, td { padding: 11px 10px; }
  .float-badge { display: none; }
}

/* ===== 文章页 ===== */
.crumb { padding: 18px 0 0; font-size: 13px; color: var(--muted); }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--blue); }
.crumb span { margin: 0 6px; color: #c6d3df; }

.article-hero { padding: 28px 0 6px; }
.article-hero h1 { font-size: 30px; color: var(--ink); font-weight: 800; line-height: 1.45; }
.article-hero .art-meta { margin-top: 14px; font-size: 13px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.article-hero .art-cat { background: #eef6fc; color: var(--blue); font-size: 12px; font-weight: 600; padding: 3px 12px; border-radius: 999px; }

.article-body { max-width: 780px; margin: 0 auto; padding: 20px 0 30px; }
.article-body h2 { font-size: 21px; color: var(--ink); margin: 36px 0 14px; padding-left: 12px; border-left: 4px solid var(--blue); line-height: 1.5; }
.article-body h3 { font-size: 17px; color: var(--ink); margin: 26px 0 10px; }
.article-body p { margin: 12px 0; font-size: 15.5px; color: var(--body-2); }
.article-body ul, .article-body ol { margin: 12px 0 12px 22px; }
.article-body li { margin: 8px 0; font-size: 15px; }
.article-body .tip { background: #eef6fc; border-left: 4px solid var(--blue); padding: 14px 18px; border-radius: 8px; font-size: 14.5px; color: var(--body-2); margin: 16px 0; }
.article-body .warn { background: #fff7ed; border-left: 4px solid var(--orange); padding: 14px 18px; border-radius: 8px; font-size: 14.5px; color: var(--body-2); margin: 16px 0; }

.article-nav { max-width: 780px; margin: 0 auto; padding: 10px 0 40px; display: flex; flex-wrap: wrap; gap: 10px; }
.article-nav a { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 16px; font-size: 13.5px; color: var(--body-2); }
.article-nav a:hover { color: var(--blue); border-color: #bfe3f5; }

.article-cta { max-width: 780px; margin: 10px auto 0; background: var(--grad); border-radius: 18px; padding: 30px 26px; text-align: center; color: #fff; }
.article-cta h3 { font-size: 22px; font-weight: 800; }
.article-cta p { color: rgba(255,255,255,.95); margin: 10px 0 18px; font-size: 14.5px; }
.article-cta .btn-white { display: inline-flex; align-items: center; gap: 8px; background: #fff; color: var(--blue); font-weight: 700; font-size: 15px; padding: 12px 28px; border-radius: 11px; box-shadow: 0 8px 20px rgba(0,0,0,.18); }
.article-cta .btn-white:hover { transform: translateY(-1px); }

@media (max-width: 640px) {
  .article-hero h1 { font-size: 24px; }
  .article-body h2 { font-size: 19px; }
}