/* ============ 闪连VPN 白橙黄亮色主题 ============ */
:root {
  --sl-primary: #f97316;
  --sl-deep: #ea580c;
  --sl-accent: #fbbf24;
  --sl-grad: linear-gradient(135deg, #f97316, #fbbf24);
  --sl-ink: #1f2937;
  --sl-mut: #6b7280;
  --sl-dim: #9ca3af;
  --sl-line: #f3f4f6;
  --sl-bg: #fff;
  --sl-card: #ffffff;
  --sl-r: 16px;
  --sl-sh: 0 8px 30px rgba(249, 115, 22, .14);
  --sl-f: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--sl-f); color: var(--sl-ink); background: var(--sl-bg); line-height: 1.7; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.sl-shell { width: min(1140px, 92%); margin: 0 auto; }

/* Header 白色 */
.sl-header { position: sticky; top: 0; z-index: 80; background: rgba(255,255,255,.92); backdrop-filter: blur(12px); border-bottom: 1px solid var(--sl-line); }
.sl-row { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.sl-brand { display: inline-flex; align-items: center; font-weight: 800; font-size: 20px; color: var(--sl-ink); }
.sl-brand img { margin-right: 9px; width: 34px; height: 34px; object-fit: cover; border-radius: 8px; }
.sl-brand b { color: #000; font-weight: 900; }
.sl-nav { display: flex; gap: 28px; font-size: 14.5px; color: var(--sl-mut); }
.sl-nav a:hover { color: var(--sl-primary); }
.sl-pill { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; font-weight: 700; cursor: pointer; border: none; transition: all .22s; white-space: nowrap; }
.sl-pill-s { padding: 9px 20px; font-size: 13px; }
.sl-pill-m { padding: 13px 30px; font-size: 14.5px; }
.sl-pill-fill { background: var(--sl-grad); color: #fff; box-shadow: 0 6px 18px rgba(249, 115, 22, .35); }
.sl-pill-fill:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(249, 115, 22, .45); }
.sl-pill-line { background: transparent; color: var(--sl-primary); border: 1.5px solid var(--sl-primary); }
.sl-pill-line:hover { background: rgba(249, 115, 22, .1); }
.sl-pill-pale { background: #fff; color: var(--sl-primary); box-shadow: 0 8px 22px rgba(2, 6, 23, .12); }

/* Hero 白橙黄 */
.sl-hero { padding: 96px 0 88px; background: linear-gradient(180deg, #fff7ed, #fff 70%); position: relative; overflow: hidden; }
.sl-hero::before { content: ''; position: absolute; top: -120px; right: -120px; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(249,115,22,.12), transparent 70%); }
.sl-hero::after { content: ''; position: absolute; bottom: -100px; left: -100px; width: 380px; height: 380px; border-radius: 50%; background: radial-gradient(circle, rgba(251,191,36,.12), transparent 70%); }
.sl-hero-in { position: relative; z-index: 1; text-align: center; max-width: 860px; margin: 0 auto; }
.sl-pill-tag { display: inline-flex; gap: 7px; align-items: center; font-size: 12.5px; font-weight: 700; color: var(--sl-deep); background: rgba(249, 115, 22, .12); border: 1px solid rgba(249, 115, 22, .3); padding: 6px 16px; border-radius: 999px; }
.sl-hero h1 { font-size: clamp(36px, 5.6vw, 64px); font-weight: 900; line-height: 1.15; letter-spacing: -1px; margin: 22px 0 22px; color: var(--sl-ink); }
.sl-hero h1 .g1 { background: linear-gradient(135deg, #f97316, #fbbf24); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sl-hero h1 .g2 { background: linear-gradient(135deg, #f97316, #ea580c); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sl-hero-lead { font-size: 16.5px; color: var(--sl-mut); margin: 0 auto 34px; max-width: 660px; }
.sl-hero-lead b { color: var(--sl-deep); }
.sl-hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.sl-hero-note { font-size: 13.5px; color: var(--sl-dim); margin-top: 20px; }

/* 数据条 */
.sl-databar { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-top: 48px; }
.sl-databar .item { text-align: center; }
.sl-databar .item b { font-size: 32px; font-weight: 900; display: block; color: var(--sl-primary); }
.sl-databar .item span { font-size: 13px; color: var(--sl-mut); }
.sl-databar .item.cyan b { color: #f97316; }
.sl-databar .item.violet b { color: #fbbf24; }
.sl-databar .item.pink b { color: #ea580c; }
.sl-databar .item.green b { color: #f59e0b; }

/* 内容区 */
.sl-sec { padding: 80px 0; }
.sl-sec-alt { background: #fff7ed; }
.sl-sec-dark { background: #fff7ed; }
.sl-sec-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.sl-sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 900; letter-spacing: -.5px; margin-bottom: 12px; }
.sl-sec-head p { color: var(--sl-mut); font-size: 15.5px; }
.sl-sec-dark .sl-sec-head h2 { color: var(--sl-ink); }
.sl-sec-dark .sl-sec-head p { color: var(--sl-mut); }
.sl-lab { display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 2px; color: var(--sl-primary); text-transform: uppercase; margin-bottom: 14px; }
.sl-sec-dark .sl-lab { color: var(--sl-deep); }

/* 节点国家列表 */
.sl-countries { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.sl-country { background: #fff; border: 1px solid var(--sl-line); border-radius: var(--sl-r); padding: 20px 12px; text-align: center; transition: all .25s; }
.sl-country:hover { transform: translateY(-4px); box-shadow: var(--sl-sh); border-color: rgba(249, 115, 22, .4); }
.sl-country .flag { font-size: 34px; display: block; margin-bottom: 8px; }
.sl-country .nm { font-weight: 700; font-size: 14px; }
.sl-country .ct { font-size: 11.5px; color: var(--sl-dim); }

/* 为什么选择（3列） */
.sl-grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.sl-point { background: #fff; border: 1px solid var(--sl-line); border-radius: var(--sl-r); padding: 34px 28px; transition: all .3s; position: relative; overflow: hidden; }
.sl-point::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--sl-grad); }
.sl-point:hover { transform: translateY(-5px); box-shadow: var(--sl-sh); }
.sl-point .ico { width: 56px; height: 56px; border-radius: 14px; background: var(--sl-grad); display: grid; place-items: center; font-size: 26px; margin-bottom: 18px; }
.sl-point h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; }
.sl-point p { color: var(--sl-mut); font-size: 14.5px; }

/* 功能卡（4列，白卡橙顶条） */
.sl-cyber-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.sl-cyber-card { background: #fff; border: 1px solid var(--sl-line); border-radius: var(--sl-r); padding: 28px 22px; transition: all .3s; position: relative; overflow: hidden; }
.sl-cyber-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--sl-grad); }
.sl-cyber-card:hover { transform: translateY(-5px); box-shadow: var(--sl-sh); border-color: rgba(249, 115, 22, .4); }
.sl-cyber-card .ico { font-size: 32px; margin-bottom: 14px; }
.sl-cyber-card h3 { color: var(--sl-ink); font-size: 16.5px; font-weight: 800; margin-bottom: 8px; }
.sl-cyber-card p { color: var(--sl-mut); font-size: 13.8px; }

/* 多设备横幅 橙黄渐变 */
.sl-device { background: var(--sl-grad); color: #fff; border-radius: 20px; padding: 48px 40px; display: flex; gap: 32px; align-items: center; justify-content: space-between; flex-wrap: wrap; box-shadow: 0 16px 40px rgba(249, 115, 22, .25); }
.sl-device h3 { font-size: 26px; font-weight: 900; margin-bottom: 10px; }
.sl-device p { color: rgba(255,255,255,.94); font-size: 15px; max-width: 560px; }
.sl-device .badges { display: flex; gap: 10px; flex-wrap: wrap; }
.sl-device .badge { background: rgba(255,255,255,.22); border: 1px solid rgba(255,255,255,.4); padding: 8px 16px; border-radius: 999px; font-size: 13px; font-weight: 700; }

/* 免费试用区 */
.sl-trial { background: #fff; border: 2px dashed var(--sl-primary); border-radius: 20px; padding: 48px 40px; text-align: center; }
.sl-trial h3 { font-size: 24px; font-weight: 900; margin-bottom: 10px; }
.sl-trial p { color: var(--sl-mut); font-size: 15px; margin-bottom: 22px; }
.sl-trial .steps { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.sl-trial .step { background: #fff7ed; border-radius: 12px; padding: 14px 20px; font-size: 13.5px; color: var(--sl-mut); }
.sl-trial .step b { color: var(--sl-primary); }

/* 价格 */
.sl-plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.sl-plan { background: #fff; border: 1px solid var(--sl-line); border-radius: 18px; padding: 30px 26px; display: flex; flex-direction: column; position: relative; transition: all .3s; }
.sl-plan:hover { transform: translateY(-5px); box-shadow: var(--sl-sh); }
.sl-plan.featured { border: 2px solid var(--sl-primary); box-shadow: 0 16px 40px rgba(249, 115, 22, .18); }
.sl-plan .sl-reco { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--sl-grad); color: #fff; font-size: 11.5px; font-weight: 800; padding: 5px 14px; border-radius: 999px; white-space: nowrap; }
.sl-plan h3 { font-size: 16px; font-weight: 800; }
.sl-plan .sl-desc { font-size: 12.5px; color: var(--sl-dim); margin-bottom: 14px; }
.sl-price-line { display: flex; align-items: baseline; gap: 5px; }
.sl-price-line .sl-sym { font-size: 16px; font-weight: 800; }
.sl-price-line b { font-size: 40px; font-weight: 900; letter-spacing: -1px; color: var(--sl-primary); }
.sl-price-line small { font-size: 12.5px; color: var(--sl-dim); }
.sl-plan .sl-total { font-size: 12.5px; color: var(--sl-mut); margin: 4px 0 14px; }
.sl-plan ul { flex: 1; margin-bottom: 20px; }
.sl-plan li { font-size: 13.8px; color: var(--sl-mut); padding: 6px 0; display: flex; gap: 8px; }
.sl-plan li:before { content: "✔"; color: var(--sl-primary); font-weight: 800; }

/* FAQ */
.sl-faq { max-width: 760px; margin: 0 auto; }
.sl-faq-item { background: #fff; border: 1px solid var(--sl-line); border-radius: var(--sl-r); margin-bottom: 12px; overflow: hidden; }
.sl-faq-q { padding: 18px 22px; font-weight: 700; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
.sl-faq-q:hover { color: var(--sl-primary); }
.sl-faq-a { padding: 0 22px 18px; color: var(--sl-mut); font-size: 14.5px; display: none; }
.sl-faq-item.open .sl-faq-a { display: block; }
.sl-faq-item.open .sl-faq-q { color: var(--sl-primary); }

/* 平台卡 */
.sl-platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.sl-platform { background: #fff; border: 1px solid var(--sl-line); border-radius: var(--sl-r); padding: 28px 20px; text-align: center; transition: all .3s; }
.sl-platform:hover { transform: translateY(-5px); box-shadow: var(--sl-sh); }
.sl-platform .sl-os { font-size: 42px; margin-bottom: 10px; }
.sl-platform h3 { font-size: 16.5px; font-weight: 800; }
.sl-platform .sl-ver { font-size: 12.5px; color: var(--sl-dim); margin: 4px 0 16px; }

/* 子页头 白橙黄 */
.sl-subhead { padding: 70px 0 56px; text-align: center; background: linear-gradient(180deg, #fff7ed, #fff 70%); position: relative; overflow: hidden; }
.sl-subhead .sl-shell { position: relative; z-index: 1; }
.sl-subhead h1 { font-size: clamp(30px, 3.8vw, 46px); font-weight: 900; margin: 16px 0 10px; color: var(--sl-ink); }
.sl-subhead p { color: var(--sl-mut); max-width: 560px; margin: 0 auto; }

/* 文章 */
.sl-article { max-width: 760px; margin: 0 auto; }
.sl-article h2 { font-size: 22px; font-weight: 800; margin: 28px 0 12px; }
.sl-article p { color: var(--sl-mut); margin-bottom: 14px; }
.sl-article strong { color: var(--sl-deep); }
.sl-article ul, .sl-article ol { margin: 0 0 16px 20px; }
.sl-article li { color: var(--sl-mut); margin-bottom: 8px; }
.sl-refund { display: flex; gap: 14px; background: #fff7ed; border: 1px solid #fed7aa; border-radius: var(--sl-r); padding: 20px 22px; margin-top: 28px; font-size: 14px; color: var(--sl-mut); }

/* Final CTA 橙黄渐变 */
.sl-bottom { background: var(--sl-grad); color: #fff; text-align: center; padding: 80px 0; }
.sl-bottom h2 { font-size: clamp(28px, 3.4vw, 40px); font-weight: 900; margin-bottom: 12px; }
.sl-bottom p { color: rgba(255,255,255,.92); margin-bottom: 28px; }

/* Footer 浅色 */
.sl-footer { background: #fff7ed; color: var(--sl-mut); padding: 44px 0 28px; border-top: 1px solid var(--sl-line); }
.sl-footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 28px; padding-bottom: 24px; border-bottom: 1px solid var(--sl-line); margin-bottom: 18px; }
.sl-footer-top p { max-width: 300px; font-size: 13px; margin-top: 10px; }
.sl-foot-col h4 { color: var(--sl-ink); font-size: 14px; margin-bottom: 12px; }
.sl-foot-col li { font-size: 13px; margin-bottom: 8px; }
.sl-foot-col a:hover { color: var(--sl-primary); }
.sl-foot-copy { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; font-size: 12.5px; }

@media (max-width: 900px) {
  .sl-countries { grid-template-columns: repeat(3, 1fr); }
  .sl-grid3 { grid-template-columns: 1fr; }
  .sl-cyber-grid { grid-template-columns: 1fr 1fr; }
  .sl-platforms, .sl-plans { grid-template-columns: 1fr 1fr; }
  .sl-nav { display: none; }
  .sl-sec { padding: 54px 0; }
}
@media (max-width: 560px) {
  .sl-countries { grid-template-columns: repeat(2, 1fr); }
  .sl-cyber-grid, .sl-platforms, .sl-plans { grid-template-columns: 1fr; }
}