/* ==========================================================
   Telegram 官网 · Neon Noir 风格
   暗夜黑底 / 霓虹辉光 / 玻璃拟态 / 等宽终端点缀
   ========================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  --bg: #05070d;
  --bg-2: #0a0f1a;
  --glass: rgba(148, 190, 255, 0.05);
  --glass-strong: rgba(148, 190, 255, 0.09);
  --line: rgba(120, 180, 255, 0.14);
  --line-strong: rgba(120, 190, 255, 0.32);
  --ink: #e8f1fb;
  --ink-2: #93a7bd;
  --ink-3: #5c7189;
  --cyan: #38e1ff;
  --blue: #3d8bff;
  --violet: #8b7bff;
  --green: #3ddc97;
  --amber: #ffb85c;
  --rose: #ff6b9d;
  --glow: 0 0 34px rgba(56, 225, 255, 0.3);
  --radius: 18px;
  --pill: 999px;
  --font: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Code", Consolas, "Courier New", monospace;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}

/* 全局网格底纹 + 顶部极光 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(120, 180, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 180, 255, 0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
}
body::after {
  content: "";
  position: fixed;
  top: -320px; left: 50%;
  transform: translateX(-50%);
  width: 1100px; height: 640px;
  z-index: -1;
  background: radial-gradient(closest-side, rgba(56, 225, 255, 0.14), rgba(61, 139, 255, 0.08) 55%, transparent 75%);
  pointer-events: none;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4, p, ul, pre { margin: 0; }
ul { padding: 0; list-style: none; }
svg { stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
::selection { background: var(--cyan); color: #04121a; }

.wrap { width: min(1180px, 100% - 48px); margin-inline: auto; }
.wrap--narrow { width: min(800px, 100% - 48px); }

.section { padding: 104px 0; position: relative; }

.grad {
  background: linear-gradient(100deg, #38e1ff, #3d8bff 55%, #8b7bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 通用组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
}
.eyebrow i {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: var(--pill);
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  border: 1px solid transparent;
  transition: transform 0.22s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease);
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; transition: transform 0.25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn--sm { padding: 10px 20px; font-size: 14px; }
.btn--lg { padding: 16px 32px; font-size: 16px; }

.btn--neon {
  background: linear-gradient(135deg, #38e1ff, #3d8bff);
  color: #04121a;
  font-weight: 700;
  box-shadow: 0 0 22px rgba(56, 225, 255, 0.4), 0 10px 30px rgba(61, 139, 255, 0.3);
}
.btn--neon:hover { transform: translateY(-2px); box-shadow: 0 0 34px rgba(56, 225, 255, 0.6), 0 16px 40px rgba(61, 139, 255, 0.4); }

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--ink);
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover { border-color: var(--cyan); color: var(--cyan); box-shadow: 0 0 22px rgba(56, 225, 255, 0.2); transform: translateY(-2px); }

.list li {
  position: relative;
  padding-left: 30px;
  margin-bottom: 11px;
  color: var(--ink-2);
  font-size: 15px;
}
.list li::before {
  content: "";
  position: absolute;
  left: 0; top: 2px;
  width: 20px; height: 20px;
  border-radius: 6px;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 12.5 4 4L18 7.5' fill='none' stroke='%2338e1ff' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")
    center / 12px no-repeat,
    rgba(56, 225, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(56, 225, 255, 0.25);
}

/* ---------- 滚动显现 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .phone, .fchip, .ring, .ticker__track { animation: none !important; }
}

/* ---------- 导航 ---------- */
.hdr {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 90;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.hdr.scrolled {
  background: rgba(6, 10, 18, 0.72);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.hdr__inner { display: flex; align-items: center; gap: 20px; }

.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border-radius: 11px;
  background: linear-gradient(135deg, rgba(56, 225, 255, 0.2), rgba(61, 139, 255, 0.16));
  border: 1px solid rgba(56, 225, 255, 0.4);
  box-shadow: 0 0 18px rgba(56, 225, 255, 0.25);
}
.brand__mark svg { width: 20px; height: 20px; fill: var(--cyan); stroke: none; }
.brand__tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  border: 1px solid rgba(56, 225, 255, 0.4);
  border-radius: 6px;
  padding: 2px 7px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline: auto;
  padding: 5px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.nav__link {
  padding: 8px 18px;
  border-radius: var(--pill);
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.nav__link:hover { color: var(--cyan); background: rgba(56, 225, 255, 0.08); box-shadow: inset 0 0 0 1px rgba(56, 225, 255, 0.25); }

.hdr__actions { display: flex; align-items: center; gap: 12px; margin-left: auto; }

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 42px; height: 42px;
  align-items: center;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: var(--glass);
}
.burger span { width: 18px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); }
.burger.open span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.burger.open span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 178px 0 40px; overflow: clip; }
.hero__aurora {
  position: absolute;
  top: -200px; right: -260px;
  width: 900px; height: 760px;
  background:
    radial-gradient(closest-side, rgba(56, 225, 255, 0.16), transparent 70%),
    radial-gradient(closest-side, rgba(139, 123, 255, 0.12), transparent 72%);
  filter: blur(6px);
  pointer-events: none;
}
.hero__scan {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, transparent 0 3px, rgba(120, 200, 255, 0.015) 3px 4px);
  pointer-events: none;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 48px;
  align-items: center;
  position: relative;
}
.hero__copy h1 {
  font-size: clamp(42px, 5.6vw, 68px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  margin: 22px 0 20px;
  text-shadow: 0 0 60px rgba(56, 225, 255, 0.25);
}
.hero__desc { color: var(--ink-2); font-size: 17.5px; max-width: 30em; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.hero__meta li {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  padding: 6px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--glass);
}

/* 手机模型 */
.hero__visual { position: relative; display: grid; place-items: center; min-height: 640px; }
.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(56, 225, 255, 0.22);
  pointer-events: none;
}
.ring--1 { width: 470px; height: 470px; animation: spin 40s linear infinite; }
.ring--2 { width: 580px; height: 580px; border-style: solid; border-color: rgba(139, 123, 255, 0.12); animation: spin 60s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

.phone {
  position: relative;
  width: 312px;
  border-radius: 40px;
  padding: 11px;
  background: linear-gradient(165deg, #101a2c, #070c16);
  border: 1px solid rgba(120, 190, 255, 0.28);
  box-shadow:
    0 0 60px rgba(56, 225, 255, 0.18),
    0 40px 90px rgba(0, 0, 0, 0.6),
    inset 0 0 24px rgba(56, 225, 255, 0.06);
  z-index: 2;
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }
.phone__glow {
  position: absolute;
  inset: -30px;
  border-radius: 60px;
  background: radial-gradient(closest-side, rgba(56, 225, 255, 0.16), transparent 72%);
  pointer-events: none;
  z-index: -1;
}
.phone__screen {
  display: flex;
  flex-direction: column;
  height: 600px;
  border-radius: 30px;
  overflow: hidden;
  background:
    radial-gradient(340px 200px at 50% -40px, rgba(56, 225, 255, 0.14), transparent 70%),
    #0a111f;
  border: 1px solid var(--line);
}

.p-top {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 22px 16px 13px;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 17, 31, 0.8);
}
.p-avatar {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(56, 225, 255, 0.25), rgba(61, 139, 255, 0.2));
  border: 1px solid rgba(56, 225, 255, 0.4);
}
.p-avatar svg { width: 19px; height: 19px; fill: var(--cyan); stroke: none; }
.p-top__meta { display: flex; flex-direction: column; line-height: 1.35; }
.p-top__meta strong { font-size: 14.5px; }
.p-top__meta span { font-family: var(--mono); font-size: 11px; color: var(--green); }
.p-lock { margin-left: auto; color: var(--cyan); }
.p-lock svg { width: 18px; height: 18px; }

.p-chat { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 16px 14px; overflow: hidden; }
.p-msg {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.55;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}
.p-msg.on { opacity: 1; transform: none; }
.p-msg--in {
  align-self: flex-start;
  background: rgba(148, 190, 255, 0.07);
  border: 1px solid var(--line);
  border-bottom-left-radius: 4px;
  color: var(--ink);
}
.p-msg--out {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(56, 225, 255, 0.9), rgba(61, 139, 255, 0.9));
  color: #04121a;
  font-weight: 600;
  border-bottom-right-radius: 4px;
  box-shadow: 0 0 20px rgba(56, 225, 255, 0.3);
}
.p-msg--hl { border-color: rgba(56, 225, 255, 0.45); box-shadow: 0 0 18px rgba(56, 225, 255, 0.15); }
.p-typing {
  align-self: flex-start;
  display: inline-flex;
  gap: 5px;
  padding: 12px 15px;
  border-radius: 14px 14px 14px 4px;
  background: rgba(148, 190, 255, 0.07);
  border: 1px solid var(--line);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}
.p-typing.on { opacity: 1; }
.p-typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); animation: blink 1.1s ease-in-out infinite; }
.p-typing i:nth-child(2) { animation-delay: 0.16s; }
.p-typing i:nth-child(3) { animation-delay: 0.32s; }

.p-input { display: flex; align-items: center; gap: 10px; padding: 10px 12px 16px; }
.p-input > span:first-child {
  flex: 1;
  padding: 11px 16px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: rgba(148, 190, 255, 0.05);
  color: var(--ink-3);
  font-size: 13px;
}
.p-send {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #38e1ff, #3d8bff);
  box-shadow: 0 0 18px rgba(56, 225, 255, 0.45);
}
.p-send svg { width: 18px; height: 18px; fill: #04121a; stroke: none; }

/* 悬浮数据卡 */
.fchip {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 13px 18px;
  border-radius: 14px;
  background: rgba(10, 17, 31, 0.78);
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 26px rgba(56, 225, 255, 0.16), 0 18px 44px rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  animation: floaty 6s ease-in-out infinite;
}
.fchip strong { font-family: var(--mono); font-size: 19px; color: var(--cyan); text-shadow: 0 0 16px rgba(56, 225, 255, 0.6); }
.fchip span { font-size: 11.5px; color: var(--ink-2); }
.fchip--a { top: 108px; left: 4%; animation-delay: 0.9s; }
.fchip--b { bottom: 128px; right: 2%; }

/* ---------- 跑马灯 ---------- */
.ticker {
  margin-top: 64px;
  border-block: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(56, 225, 255, 0.05), rgba(139, 123, 255, 0.05));
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.ticker__track {
  display: flex;
  align-items: center;
  gap: 34px;
  width: max-content;
  padding: 17px 0;
  animation: marquee 30s linear infinite;
}
.ticker__track span {
  font-family: var(--mono);
  font-size: 13.5px;
  letter-spacing: 0.14em;
  color: var(--ink-2);
  white-space: nowrap;
}
.ticker__track i { color: var(--cyan); font-style: normal; font-size: 9px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 数据条 ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.stat {
  text-align: center;
  padding: 30px 14px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.stat:hover { border-color: var(--line-strong); transform: translateY(-4px); box-shadow: 0 0 30px rgba(56, 225, 255, 0.12); }
.stat b {
  display: block;
  font-family: var(--mono);
  font-size: clamp(26px, 2.8vw, 38px);
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 22px rgba(56, 225, 255, 0.5);
  letter-spacing: -0.01em;
}
.stat > span { font-size: 13.5px; color: var(--ink-2); }

/* ---------- 区段标题 ---------- */
.shead { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.shead h2 {
  font-size: clamp(30px, 3.8vw, 46px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 18px;
}

/* ---------- 功能 Bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  position: relative;
  padding: 30px 28px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  overflow: hidden;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 50%), rgba(56, 225, 255, 0.13), transparent 65%);
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}
.card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 0 34px rgba(56, 225, 255, 0.14), 0 22px 50px rgba(0, 0, 0, 0.4); }
.card:hover::before { opacity: 1; }
.card__icon {
  display: grid;
  place-items: center;
  width: 48px; height: 48px;
  border-radius: 14px;
  margin-bottom: 20px;
  border: 1px solid currentColor;
  box-shadow: 0 0 20px -4px currentColor;
}
.card__icon svg { width: 23px; height: 23px; }
.icon-cyan { color: var(--cyan); background: rgba(56, 225, 255, 0.08); }
.icon-green { color: var(--green); background: rgba(61, 220, 151, 0.08); }
.icon-violet { color: var(--violet); background: rgba(139, 123, 255, 0.09); }
.icon-amber { color: var(--amber); background: rgba(255, 184, 92, 0.08); }
.icon-rose { color: var(--rose); background: rgba(255, 107, 157, 0.08); }
.icon-blue { color: var(--blue); background: rgba(61, 139, 255, 0.09); }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 9px; letter-spacing: -0.01em; }
.card p { color: var(--ink-2); font-size: 14.5px; }

/* ---------- 切换体验 ---------- */
.seg {
  display: flex;
  justify-content: center;
  gap: 6px;
  width: fit-content;
  margin: 0 auto 44px;
  padding: 6px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.seg__btn {
  padding: 10px 24px;
  border-radius: var(--pill);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-2);
  transition: color 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.seg__btn:hover { color: var(--cyan); }
.seg__btn.is-active {
  color: #04121a;
  background: linear-gradient(135deg, #38e1ff, #3d8bff);
  box-shadow: 0 0 22px rgba(56, 225, 255, 0.45);
}

.panels { position: relative; }
.panel {
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 56px;
  align-items: center;
  padding: 44px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(148, 190, 255, 0.06), rgba(148, 190, 255, 0.02));
  border: 1px solid var(--line);
  animation: panelIn 0.45s var(--ease);
}
.panel[hidden] { display: none; }
@keyframes panelIn { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.panel__copy h3 { font-size: clamp(24px, 2.7vw, 32px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.panel__copy p { color: var(--ink-2); margin-bottom: 22px; }

/* 模拟卡片 */
.mock {
  width: min(360px, 100%);
  margin-inline: auto;
  padding: 22px;
  border-radius: var(--radius);
  background: rgba(7, 12, 22, 0.85);
  border: 1px solid var(--line-strong);
  box-shadow: 0 0 34px rgba(56, 225, 255, 0.1), 0 26px 60px rgba(0, 0, 0, 0.5);
}
.mock__row { display: flex; margin-bottom: 10px; }
.mock__row--end { justify-content: flex-end; }
.bubble {
  max-width: 88%;
  padding: 11px 15px;
  border-radius: 14px 14px 14px 4px;
  background: rgba(148, 190, 255, 0.07);
  border: 1px solid var(--line);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--ink);
}
.bubble--out {
  border-radius: 14px 14px 4px 14px;
  background: linear-gradient(135deg, rgba(56, 225, 255, 0.9), rgba(61, 139, 255, 0.9));
  color: #04121a;
  font-weight: 600;
  border: 0;
}
.bubble--danger {
  color: var(--rose);
  border-color: rgba(255, 107, 157, 0.4);
  background: rgba(255, 107, 157, 0.07);
  box-shadow: 0 0 16px rgba(255, 107, 157, 0.12) inset;
}
.bubble--hl {
  color: var(--cyan);
  border-color: rgba(56, 225, 255, 0.45);
  background: rgba(56, 225, 255, 0.08);
  box-shadow: 0 0 18px rgba(56, 225, 255, 0.15) inset;
}
.mock__post-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.mock__chan { font-weight: 700; font-size: 14.5px; }
.mock__count { font-family: var(--mono); font-size: 11.5px; color: var(--cyan); }
.mock__post p { font-size: 14px; line-height: 1.7; color: var(--ink); margin-bottom: 16px; }
.mock__bar { height: 7px; border-radius: 4px; background: rgba(148, 190, 255, 0.1); overflow: hidden; margin-bottom: 16px; }
.mock__bar i { display: block; height: 100%; border-radius: 4px; background: linear-gradient(90deg, #38e1ff, #8b7bff); box-shadow: 0 0 14px rgba(56, 225, 255, 0.5); }
.mock__stats { display: flex; gap: 16px; font-family: var(--mono); font-size: 11.5px; color: var(--ink-2); }

.mock--call {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 40px 24px;
}
.mock__avatar {
  display: grid;
  place-items: center;
  width: 86px; height: 86px;
  border-radius: 50%;
  font-size: 30px;
  font-weight: 800;
  color: #04121a;
  background: linear-gradient(135deg, #38e1ff, #8b7bff);
  box-shadow: 0 0 40px rgba(56, 225, 255, 0.45);
}
.mock--call strong { font-size: 17px; }
.mock__status { font-family: var(--mono); font-size: 12px; color: var(--green); }
.mock__wave { display: flex; align-items: flex-end; gap: 5px; height: 44px; margin-top: 18px; }
.mock__wave i {
  width: 5px;
  border-radius: 3px;
  background: linear-gradient(180deg, #38e1ff, rgba(61, 139, 255, 0.3));
  box-shadow: 0 0 10px rgba(56, 225, 255, 0.5);
  animation: wave 1.1s ease-in-out infinite;
}
.mock__wave i:nth-child(1) { height: 30%; animation-delay: 0s; }
.mock__wave i:nth-child(2) { height: 60%; animation-delay: 0.1s; }
.mock__wave i:nth-child(3) { height: 90%; animation-delay: 0.2s; }
.mock__wave i:nth-child(4) { height: 45%; animation-delay: 0.3s; }
.mock__wave i:nth-child(5) { height: 100%; animation-delay: 0.4s; }
.mock__wave i:nth-child(6) { height: 45%; animation-delay: 0.5s; }
.mock__wave i:nth-child(7) { height: 90%; animation-delay: 0.6s; }
.mock__wave i:nth-child(8) { height: 60%; animation-delay: 0.7s; }
.mock__wave i:nth-child(9) { height: 30%; animation-delay: 0.8s; }
@keyframes wave { 0%, 100% { transform: scaleY(0.5); } 50% { transform: scaleY(1); } }

/* ---------- 安全 ---------- */
.sec {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: center;
}
.sec__visual { position: relative; display: grid; place-items: center; min-height: 420px; }
.radar { position: relative; display: grid; place-items: center; width: 300px; height: 300px; }
.radar span {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(56, 225, 255, 0.2);
}
.radar span:nth-child(1) { inset: 0; animation: ripple 3.6s var(--ease) infinite; }
.radar span:nth-child(2) { inset: 44px; animation: ripple 3.6s var(--ease) infinite 1.2s; }
.radar span:nth-child(3) { inset: 88px; animation: ripple 3.6s var(--ease) infinite 2.4s; }
@keyframes ripple {
  0% { transform: scale(0.82); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: scale(1.12); opacity: 0; }
}
.radar__shield {
  width: 104px; height: 104px;
  color: var(--cyan);
  stroke-width: 1.3;
  filter: drop-shadow(0 0 26px rgba(56, 225, 255, 0.6));
}
.radar__shield path:last-child { stroke: var(--green); stroke-width: 2.2; }

.sec__copy h2 { font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; margin: 18px 0 12px; }
.sec__copy > p { color: var(--ink-2); margin-bottom: 26px; }
.sec__copy .btn { margin-top: 26px; }

/* 终端窗口 */
.terminal {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: #060b14;
  box-shadow: 0 0 40px rgba(56, 225, 255, 0.1), 0 30px 70px rgba(0, 0, 0, 0.5);
}
.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(148, 190, 255, 0.05);
}
.terminal__bar i { width: 11px; height: 11px; border-radius: 50%; }
.terminal__bar i:nth-child(1) { background: #ff5f57; }
.terminal__bar i:nth-child(2) { background: #febc2e; }
.terminal__bar i:nth-child(3) { background: #28c840; }
.terminal__bar span { margin-left: 10px; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); }
.terminal pre {
  padding: 20px 22px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-2);
  overflow-x: auto;
}
.terminal code b { color: var(--cyan); font-weight: 600; }
.terminal code em { color: var(--green); font-style: normal; }

/* ---------- 下载 ---------- */
.deploy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 920px;
  margin: 0 auto;
}
.deploy__row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease);
}
.deploy__row:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: var(--glass-strong);
  box-shadow: 0 0 26px rgba(56, 225, 255, 0.14);
}
.deploy__ico {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 12px;
  flex: none;
  color: var(--cyan);
  background: rgba(56, 225, 255, 0.08);
  border: 1px solid rgba(56, 225, 255, 0.3);
}
.deploy__ico svg { width: 22px; height: 22px; }
.deploy__name { font-weight: 700; font-size: 16px; }
.deploy__note { color: var(--ink-3); font-size: 13px; margin-left: auto; margin-right: 6px; }
.deploy__arrow { width: 18px; height: 18px; color: var(--ink-3); flex: none; transition: transform 0.3s var(--ease), color 0.3s var(--ease); }
.deploy__row:hover .deploy__arrow { transform: translateX(4px); color: var(--cyan); }

/* ---------- FAQ ---------- */
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.faq__item[open] { border-color: var(--line-strong); box-shadow: 0 0 26px rgba(56, 225, 255, 0.1); }
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 19px 24px;
  font-weight: 600;
  font-size: 15.5px;
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--cyan); }
.faq__sg { position: relative; width: 26px; height: 26px; flex: none; border-radius: 8px; border: 1px solid var(--line-strong); transition: background 0.3s var(--ease), transform 0.3s var(--ease); }
.faq__sg::before, .faq__sg::after {
  content: "";
  position: absolute;
  top: 50%; left: 50%;
  width: 11px; height: 2px;
  border-radius: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform 0.3s var(--ease);
}
.faq__sg::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq__item[open] .faq__sg { background: linear-gradient(135deg, #38e1ff, #3d8bff); color: #04121a; border-color: transparent; transform: rotate(180deg); }
.faq__item[open] .faq__sg::after { transform: translate(-50%, -50%) rotate(0); }
.faq__body { padding: 0 24px 20px; }
.faq__body p { color: var(--ink-2); font-size: 14.5px; }

/* ---------- CTA ---------- */
.cta { padding: 20px 0 110px; }
.cta__box {
  position: relative;
  text-align: center;
  padding: 76px 32px;
  border-radius: 26px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(560px 300px at 50% -60px, rgba(56, 225, 255, 0.16), transparent 70%),
    linear-gradient(180deg, rgba(148, 190, 255, 0.07), rgba(148, 190, 255, 0.02));
  overflow: hidden;
  box-shadow: 0 0 60px rgba(56, 225, 255, 0.12), 0 40px 90px rgba(0, 0, 0, 0.5);
}
.cta__glow {
  position: absolute;
  bottom: -160px; left: 50%;
  transform: translateX(-50%);
  width: 640px; height: 320px;
  background: radial-gradient(closest-side, rgba(139, 123, 255, 0.2), transparent 70%);
  pointer-events: none;
}
.cta__box h2 { font-size: clamp(28px, 3.6vw, 44px); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.cta__box > p { color: var(--ink-2); margin-bottom: 32px; }
.cta__box .hero__actions { justify-content: center; margin-top: 0; }

/* ---------- 页脚 ---------- */
.footer { border-top: 1px solid var(--line); background: rgba(6, 10, 18, 0.6); padding: 62px 0 28px; }
.footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer__brand p { margin-top: 14px; color: var(--ink-3); font-size: 14px; }
.footer__col h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em; color: var(--ink-3); margin-bottom: 16px; font-weight: 500; }
.footer__col a { display: block; padding: 5px 0; font-size: 14.5px; color: var(--ink-2); transition: color 0.25s var(--ease), transform 0.25s var(--ease); }
.footer__col a:hover { color: var(--cyan); transform: translateX(3px); }
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.footer__bottom p { font-size: 13px; color: var(--ink-3); }
.footer__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--green);
}
.footer__status i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: blink 2s ease-in-out infinite; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; gap: 60px; text-align: center; }
  .hero__desc { margin-inline: auto; }
  .hero__actions, .hero__meta { justify-content: center; }
  .hero__visual { min-height: 600px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .sec { grid-template-columns: 1fr; gap: 44px; }
  .sec__visual { min-height: 340px; }
  .panel { grid-template-columns: 1fr; gap: 34px; padding: 32px; }
  .nav {
    position: fixed;
    top: 82px; left: 24px; right: 24px;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    border-radius: var(--radius);
    background: rgba(7, 12, 22, 0.96);
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), visibility 0.3s;
    margin-inline: 0;
  }
  .nav.open { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 13px 18px; font-size: 15.5px; }
  .burger { display: flex; }
  .hdr__cta { display: none; }
}

@media (max-width: 640px) {
  .wrap { width: calc(100% - 36px); }
  .section { padding: 74px 0; }
  .hero { padding-top: 140px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .bento, .deploy { grid-template-columns: 1fr; }
  .phone { width: min(290px, 88vw); }
  .phone__screen { height: 560px; }
  .ring--1, .ring--2 { display: none; }
  .fchip--a { left: 0; top: 60px; }
  .fchip--b { right: 0; bottom: 70px; }
  .deploy__note { display: none; }
  .radar { width: 240px; height: 240px; }
  .cta__box { padding: 54px 22px; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 28px; }
  .footer__brand { grid-column: 1 / -1; }
  .footer__bottom { justify-content: center; text-align: center; }
  .terminal pre { font-size: 11.5px; }
}

/* ==========================================================
   多页面组件（子页面共用）
   页面头部 / 导航高亮 / 步骤 / 表格 / 定价 / 博客 / 搜索
   ========================================================== */

/* ---------- 页面头部 ---------- */
.page-hero { position: relative; padding: 176px 0 26px; overflow: clip; }
.page-hero__glow {
  position: absolute;
  top: -260px; left: 50%;
  transform: translateX(-50%);
  width: 1020px; height: 640px;
  background:
    radial-gradient(closest-side, rgba(56, 225, 255, 0.15), transparent 70%),
    radial-gradient(closest-side, rgba(139, 123, 255, 0.1), transparent 74%);
  filter: blur(8px);
  pointer-events: none;
}
.page-hero .wrap { position: relative; max-width: 860px; }
.page-hero h1 {
  font-size: clamp(34px, 4.6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.13;
  margin: 20px 0 16px;
  text-shadow: 0 0 60px rgba(56, 225, 255, 0.25);
}
.page-hero p { color: var(--ink-2); font-size: 17px; }
.page-hero .hero__actions { margin-top: 30px; }

/* ---------- 导航当前页高亮 ---------- */
.nav__link.is-current {
  color: var(--cyan);
  background: rgba(56, 225, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(56, 225, 255, 0.45);
}

/* ---------- 区段标题下行动区 ---------- */
.shead-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 42px; }

/* ---------- 左右分栏（深度体验） ---------- */
.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.split + .split { margin-top: 88px; }
.split__copy .eyebrow { margin-bottom: 16px; }
.split__copy h3 { font-size: clamp(24px, 2.6vw, 32px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.28; margin-bottom: 14px; }
.split__copy > p { color: var(--ink-2); margin-bottom: 22px; }
.split__media { display: grid; place-items: center; }
.split--flip .split__copy { order: 2; }
.split--flip .split__media { order: 1; }

/* 模拟卡片头部（补充） */
.mock__head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.mock__head strong { display: block; font-size: 14.5px; line-height: 1.4; }
.mock__sub { font-family: var(--mono); font-size: 11px; color: var(--green); }
.mock__ava {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 12px;
  flex: none;
  font-weight: 800;
  font-size: 15px;
  color: #04121a;
  background: linear-gradient(135deg, #38e1ff, #8b7bff);
  box-shadow: 0 0 16px rgba(56, 225, 255, 0.35);
}

/* ---------- 标签云 ---------- */
.chip-cloud { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 860px; margin: 0 auto; }
.chip-cloud span {
  padding: 9px 18px;
  border-radius: var(--pill);
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  border: 1px solid var(--line);
  background: var(--glass);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.chip-cloud span:hover { color: var(--cyan); border-color: rgba(56, 225, 255, 0.4); box-shadow: 0 0 18px rgba(56, 225, 255, 0.16); transform: translateY(-2px); }

/* ---------- 步骤卡片 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step {
  padding: 32px 28px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.step:hover { transform: translateY(-4px); border-color: var(--line-strong); box-shadow: 0 0 30px rgba(56, 225, 255, 0.12); }
.step__num {
  display: inline-grid;
  place-items: center;
  width: 36px; height: 36px;
  margin-bottom: 18px;
  border-radius: 11px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
  border: 1px solid rgba(56, 225, 255, 0.4);
  background: rgba(56, 225, 255, 0.08);
  box-shadow: 0 0 16px rgba(56, 225, 255, 0.25);
}
.step h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 8px; }
.step p { color: var(--ink-2); font-size: 14.5px; }

/* ---------- 数据表格 ---------- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.spec-table { width: 100%; min-width: 680px; border-collapse: collapse; font-size: 14.5px; }
.spec-table th {
  padding: 16px 22px;
  text-align: left;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(56, 225, 255, 0.05);
  border-bottom: 1px solid var(--line-strong);
}
.spec-table td { padding: 15px 22px; color: var(--ink-2); border-bottom: 1px solid var(--line); }
.spec-table tbody tr { transition: background 0.25s var(--ease); }
.spec-table tbody tr:hover { background: rgba(148, 190, 255, 0.04); }
.spec-table tbody tr:last-child td { border-bottom: 0; }
.spec-table td:first-child { color: var(--ink); font-weight: 600; }
.cell-muted { color: var(--ink-3); }
.spec-table svg { width: 18px; height: 18px; }
.spec-table .yes { color: var(--green); }
.spec-table .no { color: var(--rose); }
.table-note { margin-top: 16px; text-align: center; color: var(--ink-3); font-size: 13px; }

/* ---------- 定价卡片 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; max-width: 900px; margin: 0 auto; }
.price-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 38px 32px 32px;
  border-radius: var(--radius);
  background: var(--glass);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.price-card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.price-card--pro {
  border-color: var(--line-strong);
  background: linear-gradient(180deg, rgba(56, 225, 255, 0.09), rgba(139, 123, 255, 0.05));
  box-shadow: 0 0 44px rgba(56, 225, 255, 0.14), 0 26px 60px rgba(0, 0, 0, 0.45);
}
.badge {
  position: absolute;
  top: -13px; right: 26px;
  padding: 5px 13px;
  border-radius: var(--pill);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #04121a;
  background: linear-gradient(135deg, #38e1ff, #3d8bff);
  box-shadow: 0 0 20px rgba(56, 225, 255, 0.5);
}
.price-card h3 { font-size: 21px; font-weight: 800; }
.price-card__sub { margin: 6px 0 22px; color: var(--ink-2); font-size: 14px; }
.price { display: flex; align-items: baseline; gap: 8px; }
.price__amount { font-family: var(--mono); font-size: 42px; font-weight: 700; color: var(--cyan); text-shadow: 0 0 24px rgba(56, 225, 255, 0.5); }
.price__unit { color: var(--ink-3); font-size: 14px; }
.price__note { margin: 10px 0 22px; color: var(--ink-3); font-size: 13px; }
.price-list { margin-bottom: 26px; }
.price-card > .btn { margin-top: auto; align-self: flex-start; }

/* ---------- 博客卡片 ---------- */
.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.post-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass);
  border: 1px solid var(--line);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.post-card:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: 0 0 30px rgba(56, 225, 255, 0.12); }
.post-card__cover { position: relative; height: 134px; border-bottom: 1px solid var(--line); }
.post-card__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.55;
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.06) 0 2px, transparent 2px 14px);
}
.cover--a { background: radial-gradient(150% 130% at 15% 0%, rgba(56, 225, 255, 0.6), rgba(56, 225, 255, 0.07) 62%), #0a111f; }
.cover--b { background: radial-gradient(150% 130% at 15% 0%, rgba(139, 123, 255, 0.6), rgba(139, 123, 255, 0.07) 62%), #0a111f; }
.cover--c { background: radial-gradient(150% 130% at 15% 0%, rgba(61, 220, 151, 0.55), rgba(61, 220, 151, 0.06) 62%), #0a111f; }
.cover--d { background: radial-gradient(150% 130% at 15% 0%, rgba(255, 184, 92, 0.55), rgba(255, 184, 92, 0.06) 62%), #0a111f; }
.cover--e { background: radial-gradient(150% 130% at 15% 0%, rgba(255, 107, 157, 0.55), rgba(255, 107, 157, 0.06) 62%), #0a111f; }
.cover--f { background: radial-gradient(150% 130% at 15% 0%, rgba(61, 139, 255, 0.6), rgba(61, 139, 255, 0.07) 62%), #0a111f; }
.post-card__body { display: flex; flex-direction: column; gap: 11px; flex: 1; padding: 22px; }
.post-card__body h3 { font-size: 16.5px; font-weight: 700; line-height: 1.5; letter-spacing: -0.01em; }
.post-card__body p { flex: 1; color: var(--ink-2); font-size: 14px; }
.post__meta { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 11.5px; color: var(--ink-3); }
.post__meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--ink-3); flex: none; }
.tag-pill {
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: var(--pill);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  border: 1px solid rgba(56, 225, 255, 0.4);
  background: rgba(56, 225, 255, 0.08);
}
.tag-pill--violet { color: var(--violet); border-color: rgba(139, 123, 255, 0.45); background: rgba(139, 123, 255, 0.09); }
.tag-pill--green { color: var(--green); border-color: rgba(61, 220, 151, 0.45); background: rgba(61, 220, 151, 0.08); }
.tag-pill--amber { color: var(--amber); border-color: rgba(255, 184, 92, 0.45); background: rgba(255, 184, 92, 0.08); }
.tag-pill--rose { color: var(--rose); border-color: rgba(255, 107, 157, 0.45); background: rgba(255, 107, 157, 0.08); }

/* 特色文章 */
.blog-feature {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(148, 190, 255, 0.06), rgba(148, 190, 255, 0.02));
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.blog-feature:hover { transform: translateY(-4px); box-shadow: 0 0 44px rgba(56, 225, 255, 0.14), 0 26px 60px rgba(0, 0, 0, 0.45); }
.blog-feature__cover {
  position: relative;
  min-height: 320px;
  background: radial-gradient(120% 130% at 20% 10%, rgba(56, 225, 255, 0.5), rgba(61, 139, 255, 0.16) 55%, rgba(7, 12, 22, 0.9) 85%), #0a111f;
  border-right: 1px solid var(--line);
}
.blog-feature__cover::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.05) 0 2px, transparent 2px 16px);
}
.blog-feature__body { display: flex; flex-direction: column; justify-content: center; gap: 14px; padding: 44px 40px; }
.blog-feature__body h3 { font-size: clamp(22px, 2.4vw, 30px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.3; }
.blog-feature__body p { color: var(--ink-2); }

/* 分页 */
.pager { display: flex; justify-content: center; gap: 8px; margin-top: 44px; }
.pager a {
  display: grid;
  place-items: center;
  min-width: 42px; height: 42px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  font-family: var(--mono);
  font-size: 14px;
  color: var(--ink-2);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.pager a:hover { color: var(--cyan); border-color: var(--line-strong); }
.pager a.is-active {
  color: #04121a;
  font-weight: 700;
  border-color: transparent;
  background: linear-gradient(135deg, #38e1ff, #3d8bff);
  box-shadow: 0 0 20px rgba(56, 225, 255, 0.4);
}
.pager svg { width: 16px; height: 16px; }

/* ---------- 订阅表单 ---------- */
.subscribe { display: flex; gap: 10px; max-width: 520px; margin: 0 auto 14px; }
.subscribe input {
  flex: 1;
  min-width: 0;
  padding: 14px 22px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  background: rgba(148, 190, 255, 0.05);
  color: var(--ink);
  font: inherit;
  font-size: 14.5px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.subscribe input::placeholder { color: var(--ink-3); }
.subscribe input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 24px rgba(56, 225, 255, 0.18); }
.form-tip { min-height: 22px; margin-bottom: 6px; text-align: center; font-size: 13.5px; color: var(--rose); opacity: 0; transform: translateY(4px); transition: opacity 0.3s var(--ease), transform 0.3s var(--ease); }
.form-tip.show { opacity: 1; transform: none; }
.form-tip.is-ok { color: var(--green); }

/* ---------- FAQ 工具区 ---------- */
.faq-tools { display: flex; flex-direction: column; align-items: center; gap: 18px; margin-bottom: 38px; }
.search-box {
  display: flex;
  align-items: center;
  gap: 11px;
  width: min(480px, 100%);
  padding: 13px 22px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.search-box:focus-within { border-color: var(--cyan); box-shadow: 0 0 26px rgba(56, 225, 255, 0.16); }
.search-box svg { width: 18px; height: 18px; color: var(--ink-3); flex: none; }
.search-box input { flex: 1; min-width: 0; border: 0; background: none; outline: none; color: var(--ink); font: inherit; font-size: 14.5px; }
.search-box input::placeholder { color: var(--ink-3); }
.faq-tools .seg { margin: 0; flex-wrap: wrap; justify-content: center; }

.empty {
  display: none;
  padding: 56px 24px;
  text-align: center;
  border-radius: var(--radius);
  border: 1px dashed var(--line-strong);
  color: var(--ink-2);
  font-size: 14.5px;
}
.empty.show { display: block; }
.empty svg { width: 34px; height: 34px; margin: 0 auto 14px; color: var(--ink-3); }
.empty a { color: var(--cyan); }

/* ---------- 多页面响应式 ---------- */
@media (max-width: 1024px) {
  .split { grid-template-columns: 1fr; gap: 36px; }
  .split + .split { margin-top: 64px; }
  .split--flip .split__copy,
  .split--flip .split__media { order: 0; }
  .posts { grid-template-columns: repeat(2, 1fr); }
  .blog-feature { grid-template-columns: 1fr; }
  .blog-feature__cover { min-height: 220px; border-right: 0; border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; max-width: 560px; }
}

@media (max-width: 640px) {
  .page-hero { padding: 132px 0 16px; }
  .page-hero h1 { margin: 16px 0 12px; }
  .posts { grid-template-columns: 1fr; }
  .subscribe { flex-direction: column; }
  .subscribe .btn { width: 100%; }
  .blog-feature__body { padding: 28px 24px; }
  .price-card { padding: 30px 24px 26px; }
}