/* ==========================================================================
   宸昭 Chenzow — 站点样式表
   设计语言：深空底色 / 精密网格 / 青蓝信号光 / 玻璃层 / 编辑式排版
   ========================================================================== */

/* ---------- 1. 令牌 ---------- */
:root {
  --navy: #0A2540;
  --navy-2: #0D3A5C;
  --cyan: #00B4D8;
  --cyan-lt: #5CE1F0;
  --cyan-dk: #0891AD;

  --bg: #04070C;
  --bg-2: #070C14;
  --bg-3: #0A1119;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.17);

  --fg: #EAF2F8;
  --fg-2: #9DB2C4;
  --fg-3: #6C8399;

  --accent: var(--cyan);
  --accent-soft: rgba(0, 180, 216, 0.14);
  --danger: #FF6B6B;

  --logo-filter: brightness(0) invert(1);

  --ff: "Inter", "SF Pro SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "HarmonyOS Sans SC", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", sans-serif;
  --ff-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", "Roboto Mono", Consolas, monospace;

  --wrap: 1240px;
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --hdr: 76px;
  --shadow: 0 24px 70px -20px rgba(0, 0, 0, 0.65);
  --glow: 0 0 0 1px rgba(0, 180, 216, 0.22), 0 18px 50px -18px rgba(0, 180, 216, 0.4);
}

html[data-theme="light"] {
  --bg: #F6F8FA;
  --bg-2: #FFFFFF;
  --bg-3: #EDF2F6;
  --surface: rgba(10, 37, 64, 0.028);
  --surface-2: rgba(10, 37, 64, 0.05);
  --line: rgba(10, 37, 64, 0.10);
  --line-2: rgba(10, 37, 64, 0.20);
  --fg: #07131C;
  --fg-2: #46596A;
  --fg-3: #6E8496;
  --accent: #0087A3;
  --accent-soft: rgba(0, 135, 163, 0.10);
  --logo-filter: none;
  --shadow: 0 24px 60px -24px rgba(10, 37, 64, 0.28);
  --glow: 0 0 0 1px rgba(0, 135, 163, 0.18), 0 18px 50px -20px rgba(0, 135, 163, 0.28);
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--hdr) + 20px);
}
body {
  font-family: var(--ff);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}
img, svg, video, canvas { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, textarea, select { font: inherit; color: inherit; }
ul, ol { padding-left: 1.15em; }
::selection { background: rgba(0, 180, 216, 0.28); color: #fff; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }
hr { border: 0; border-top: 1px solid var(--line); }

.mono { font-family: var(--ff-mono); font-variant-numeric: tabular-nums; }
.sr { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 999; background: var(--cyan); color: #04212F; padding: 10px 18px; border-radius: 8px; font-weight: 700; }
.skip:focus { left: 8px; }

/* ---------- 3. 布局 ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.wrap-narrow { max-width: 900px; }
.section { position: relative; padding: clamp(64px, 9vw, 132px) 0; }
.section-tight { padding: clamp(48px, 6vw, 88px) 0; }
.section.alt { background: var(--bg-2); }
.section.lightband { background: var(--bg-3); }
.hairline { height: 1px; background: linear-gradient(90deg, transparent, var(--line-2), transparent); }

/* ---------- 4. 排版 ---------- */
.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--ff-mono); font-size: 12px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent); font-weight: 600;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: currentColor; opacity: 0.7; }
.kicker.no-line::before { display: none; }

.sec-head { max-width: 820px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head.center .kicker::after { content: ""; width: 26px; height: 1px; background: currentColor; opacity: 0.7; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.14; letter-spacing: -0.02em; color: var(--fg); }
.h1 { font-size: clamp(2.35rem, 6.2vw, 4.6rem); line-height: 1.04; letter-spacing: -0.035em; }
.h2 { font-size: clamp(1.75rem, 3.6vw, 2.85rem); line-height: 1.12; letter-spacing: -0.028em; }
.h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); }
.lead { font-size: clamp(1rem, 1.25vw, 1.15rem); color: var(--fg-2); line-height: 1.8; }
.muted { color: var(--fg-2); }
.small { font-size: 0.875rem; }
.sec-head .h2 { margin-top: 18px; }
.sec-head .lead { margin-top: 18px; }
.grad {
  background: linear-gradient(96deg, #FFFFFF 5%, var(--cyan-lt) 52%, var(--cyan) 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
html[data-theme="light"] .grad { background: linear-gradient(96deg, #0A2540 5%, #007C99 60%, #00A8C8 95%); -webkit-background-clip: text; background-clip: text; }
/* 深色舞台内始终使用亮色渐变，不受浅色主题影响 */
html[data-theme="light"] .hero .grad,
html[data-theme="light"] .stage-dark .grad,
html[data-theme="light"] .cta .grad,
html[data-theme="light"] .post-hero .grad {
  background: linear-gradient(96deg, #FFFFFF 5%, #5CE1F0 52%, #00B4D8 92%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
html[data-theme="light"] .hero,
html[data-theme="light"] .stage-dark { color: #EAF2F8; }

/* ---------- 5. 按钮 ---------- */
.btn {
  --bh: 46px;
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  height: var(--bh); padding: 0 22px; border-radius: 999px;
  font-size: 0.95rem; font-weight: 650; letter-spacing: 0.01em; white-space: nowrap;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.3s, border-color 0.3s, color 0.3s;
  will-change: transform;
}
.btn svg, .btn span { transition: transform 0.35s var(--ease); }
.btn:hover svg, .btn:hover span { transform: translateX(3px); }
.btn-primary {
  background: linear-gradient(100deg, #00B4D8, #55E2F2 55%, #00B4D8);
  background-size: 200% 100%;
  color: #03202D;
  box-shadow: 0 10px 30px -10px rgba(0, 180, 216, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-primary:hover { background-position: 100% 0; box-shadow: 0 16px 44px -12px rgba(0, 180, 216, 0.8); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--fg); background: var(--surface); backdrop-filter: blur(6px); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn-quiet { color: var(--fg-2); padding: 0 4px; height: auto; border-radius: 0; }
.btn-quiet:hover { color: var(--accent); }
.btn-sm { --bh: 38px; padding: 0 16px; font-size: 0.875rem; }
.btn-lg { --bh: 54px; padding: 0 30px; font-size: 1rem; }
.btn-block { width: 100%; }

.tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--surface); color: var(--fg-2);
  font-size: 0.78rem; letter-spacing: 0.02em; white-space: nowrap;
}
.tag-dot::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); }

/* ---------- 6. 顶部导航 ---------- */
.hdr {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--hdr);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: transform 0.45s var(--ease), background 0.3s, border-color 0.3s;
}
.hdr.is-stuck { border-bottom-color: var(--line); background: color-mix(in srgb, var(--bg) 88%, transparent); }
.hdr.is-hidden { transform: translateY(-100%); }
.hdr-in {
  max-width: var(--wrap); height: 100%; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; color: var(--fg); }
.brand-logo { height: 38px; width: auto; filter: var(--logo-filter); transition: filter 0.4s; }
.brand-txt { display: none; line-height: 1.15; }
.brand-txt b { display: block; font-size: 14px; letter-spacing: 0.02em; }
.brand-txt i { display: block; font-style: normal; font-family: var(--ff-mono); font-size: 9.5px; letter-spacing: 0.32em; color: var(--fg-3); }
.brand-logo { flex-shrink: 0; }
.nav { display: none; align-items: center; gap: 2px; }
.nav-link {
  position: relative; display: inline-flex; align-items: center; height: 38px; padding: 0 14px;
  font-size: 0.9rem; color: var(--fg-2); border-radius: 8px; transition: color 0.25s;
}
.nav-link:hover { color: var(--fg); }
.nav-link.is-active { color: var(--fg); }
.nav-link.is-active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 0; height: 1.5px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.nav-has-mega { position: relative; }
.mega {
  position: absolute; top: calc(100% + 10px); left: 50%; transform: translate(-50%, 8px);
  width: 420px; padding: 10px; border-radius: var(--r);
  background: color-mix(in srgb, var(--bg-2) 94%, transparent);
  border: 1px solid var(--line); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transition: all 0.3s var(--ease);
}
.nav-has-mega:hover .mega, .nav-has-mega:focus-within .mega { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.mega-item {
  display: flex; align-items: center; gap: 14px; padding: 12px 12px; border-radius: 10px;
  transition: background 0.25s;
}
.mega-item:hover { background: var(--surface-2); }
.mega-idx { font-family: var(--ff-mono); font-size: 11px; color: var(--accent); opacity: 0.85; }
.mega-txt { flex: 1; line-height: 1.4; }
.mega-txt b { display: block; font-size: 0.92rem; font-weight: 600; }
.mega-txt i { display: block; font-style: normal; font-size: 0.76rem; color: var(--fg-3); margin-top: 2px; }
.mega-item svg { color: var(--fg-3); transition: transform 0.3s var(--ease), color 0.3s; }
.mega-item:hover svg { transform: translateX(3px); color: var(--accent); }
.hdr-act { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.theme-btn {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--line); color: var(--fg-2); transition: color 0.25s, border-color 0.25s, transform 0.4s var(--ease);
}
.theme-btn:hover { color: var(--accent); border-color: var(--accent); transform: rotate(18deg); }
.theme-btn .ic-sun { display: none; }
html[data-theme="light"] .theme-btn .ic-sun { display: block; }
html[data-theme="light"] .theme-btn .ic-moon { display: none; }
.hdr-cta { display: none; }
.burger { display: grid; gap: 6px; width: 38px; height: 38px; place-content: center; border: 1px solid var(--line); border-radius: 50%; }
.burger span { display: block; width: 16px; height: 1.5px; background: var(--fg); transition: transform 0.3s var(--ease), opacity 0.3s; }
.burger[aria-expanded="true"] span:first-child { transform: translateY(3.7px) rotate(45deg); }
.burger[aria-expanded="true"] span:last-child { transform: translateY(-3.7px) rotate(-45deg); }
.drawer {
  display: grid; gap: 0; overflow: hidden; max-height: 0; opacity: 0;
  background: var(--bg-2); border-bottom: 1px solid transparent;
  transition: max-height 0.5s var(--ease), opacity 0.3s, border-color 0.3s;
}
.drawer.is-open { max-height: 78vh; opacity: 1; border-bottom-color: var(--line); overflow-y: auto; }
.drawer a { padding: 13px 24px; font-size: 0.95rem; border-bottom: 1px solid var(--line); }
.drawer-sub { padding-left: 40px !important; color: var(--fg-3); font-size: 0.87rem !important; }
.drawer-cta { margin: 16px 24px 22px; border-bottom: 0 !important; color: #03202D; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding-top: calc(var(--hdr) + clamp(48px, 7vw, 92px));
  padding-bottom: clamp(48px, 6vw, 84px);
  min-height: min(90svh, 920px);
  display: flex; align-items: center;
  background:
    radial-gradient(130% 92% at 46% -8%, #123350 0%, #0A2036 30%, #061020 58%, #03070E 100%);
  color: #EAF2F8;
  isolation: isolate;
}
/* 背景舞台：三层合成（极光 / 波动地形 / 流场粒子），内容层永远压在它上面 */
.hero-stage { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.hero-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#hbTerrain {
  z-index: 2;
  -webkit-mask-image: radial-gradient(86% 82% at 50% 44%, #000 0%, rgba(0, 0, 0, 0.72) 52%, rgba(0, 0, 0, 0.22) 100%);
  mask-image: radial-gradient(86% 82% at 50% 44%, #000 0%, rgba(0, 0, 0, 0.72) 52%, rgba(0, 0, 0, 0.22) 100%);
}
#hbFlow { z-index: 3; mix-blend-mode: screen; opacity: 0.92; }

.hero-aurora { position: absolute; inset: -32% -14%; z-index: 1; filter: blur(76px); opacity: 1; mix-blend-mode: screen; }
.hero-aurora i {
  position: absolute; display: block; border-radius: 50%;
  animation: drift 15s var(--ease) infinite alternate;
}
.hero-aurora i:nth-child(1) { width: 56vw; height: 56vw; left: -2%; top: -8%; background: radial-gradient(circle, rgba(0, 195, 235, 0.72), transparent 64%); }
.hero-aurora i:nth-child(2) { width: 48vw; height: 48vw; right: -6%; top: -18%; background: radial-gradient(circle, rgba(104, 92, 255, 0.55), transparent 64%); animation-delay: -8s; }
.hero-aurora i:nth-child(3) { width: 44vw; height: 44vw; left: 28%; bottom: -26%; background: radial-gradient(circle, rgba(0, 255, 214, 0.34), transparent 66%); animation-delay: -15s; }

/* 极光绸带：斜向柔光带缓慢横扫，动态最明显的一层，但对比度极低不抢文字 */
.hero-beams { position: absolute; inset: -25% -15%; z-index: 1; filter: blur(46px); mix-blend-mode: screen; pointer-events: none; opacity: 1; }
.hero-beams i {
  position: absolute; display: block; top: -20%; height: 150%; width: 22%;
  border-radius: 50%;
  transform: rotate(16deg);
  will-change: transform, opacity;
  animation: beamSweep 13s linear infinite;
}
.hero-beams i:nth-child(1) { left: -34%; width: 24%; background: linear-gradient(180deg, transparent, rgba(0, 214, 248, 0.62) 42%, rgba(58, 128, 255, 0.44) 72%, transparent); }
.hero-beams i:nth-child(2) { left: -34%; width: 15%; background: linear-gradient(180deg, transparent, rgba(132, 255, 236, 0.5) 50%, rgba(120, 96, 255, 0.28) 74%, transparent); animation-duration: 18s; animation-delay: -9s; }
.hero-beams i:nth-child(3) { left: -34%; width: 34%; background: linear-gradient(180deg, transparent, rgba(26, 104, 255, 0.42) 38%, rgba(0, 214, 244, 0.34) 66%, transparent); animation-duration: 23s; animation-delay: -14s; }
@keyframes beamSweep {
  0% { transform: rotate(16deg) translate3d(0, 0, 0) scaleY(0.9); opacity: 0; }
  12% { opacity: 1; }
  82% { opacity: 1; }
  100% { transform: rotate(16deg) translate3d(150vw, 0, 0) scaleY(1.05); opacity: 0; }
}
@keyframes drift {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(3.5%, 4.5%, 0) scale(1.1); }
  100% { transform: translate3d(-3.5%, -2.5%, 0) scale(0.94); }
}

/* 扫描光带 */
.hero-scan {
  position: absolute; left: 0; right: 0; top: 0; height: 200px; z-index: 5;
  background: linear-gradient(to bottom, transparent, rgba(120, 235, 255, 0.055) 58%, rgba(170, 245, 255, 0.34) 92%, transparent);
  opacity: 0.55;
  animation: scanDown 6.5s linear infinite;
}
@keyframes scanDown {
  0% { transform: translate3d(0, -220px, 0); }
  100% { transform: translate3d(0, 100svh, 0); }
}

.hero-noise {
  position: absolute; inset: 0; z-index: 6; pointer-events: none; opacity: 0.04; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}
/* 压暗层：保证左侧文案对比度 */
.hero-vignette {
  position: absolute; inset: 0; z-index: 7; pointer-events: none;
  background:
    radial-gradient(58% 54% at 21% 40%, rgba(3, 8, 14, 0.6) 0%, rgba(3, 8, 14, 0.18) 50%, transparent 76%),
    linear-gradient(to bottom, rgba(3, 7, 12, 0.44) 0%, rgba(3, 7, 12, 0) 13%, rgba(3, 7, 12, 0) 68%, rgba(2, 5, 10, 0.55) 94%, rgba(2, 5, 10, 0.8) 100%);
}
.hero-in {
  position: relative; z-index: 10; width: 100%;
  display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(36px, 5vw, 64px); align-items: center;
}
/* 通用坐标系网格（CTA 区块复用） */
.hero-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 78%);
  opacity: 0.9;
}
.hero-left, .hero-right { min-width: 0; }
.hero-pill {
  display: inline-flex; align-items: center; gap: 9px; padding: 6px 14px 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.14); border-radius: 999px;
  background: rgba(255, 255, 255, 0.05); backdrop-filter: blur(10px);
  font-size: 0.78rem; letter-spacing: 0.04em; color: #BFD6E4;
}
.pulse { position: relative; width: 7px; height: 7px; border-radius: 50%; background: #38E8B0; }
.pulse::after { content: ""; position: absolute; inset: -4px; border-radius: 50%; border: 1px solid #38E8B0; animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse { 0% { transform: scale(0.7); opacity: 0.9; } 70%, 100% { transform: scale(1.9); opacity: 0; } }
.hero h1 { margin-top: 26px; color: #F4FAFF; }
.hero-sub { margin-top: 24px; max-width: 560px; font-size: clamp(0.98rem, 1.25vw, 1.12rem); color: #A8C0D2; line-height: 1.85; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero .hero-actions .btn-ghost { border-color: rgba(255, 255, 255, 0.2); color: #EAF2F8; background: rgba(255, 255, 255, 0.04); }
.hero .hero-actions .btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
html[data-theme="light"] .stage-dark .btn-ghost { border-color: rgba(255, 255, 255, 0.22); color: #EAF2F8; background: rgba(255, 255, 255, 0.05); }
html[data-theme="light"] .stage-dark .btn-ghost:hover { border-color: var(--cyan); color: var(--cyan-lt); }
html[data-theme="light"] .cta .btn-ghost { border-color: rgba(255, 255, 255, 0.22); color: #EAF2F8; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 44px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.hero-fact { display: flex; align-items: baseline; gap: 8px; }
.hero-fact b { font-size: 1.35rem; font-weight: 700; color: #fff; letter-spacing: -0.02em; }
.hero-fact span { font-size: 0.78rem; color: #7E97AB; }

/* Hero 右侧面板 */
.panel {
  position: relative; border-radius: var(--r-lg); padding: 1px; max-width: 540px; width: 100%; margin-left: auto;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.03) 40%, rgba(0, 180, 216, 0.35));
  box-shadow: 0 40px 90px -30px rgba(0, 0, 0, 0.9), 0 0 60px -20px rgba(0, 180, 216, 0.35);
  transform: perspective(1500px) rotateY(-6deg) rotateX(2.5deg);
  transition: transform 0.8s var(--ease);
}
.panel:hover { transform: perspective(1400px) rotateY(-2deg) rotateX(1deg) translateY(-4px); }
.panel-in {
  border-radius: calc(var(--r-lg) - 1px); padding: 22px 20px 18px;
  background: linear-gradient(170deg, rgba(10, 18, 26, 0.94), rgba(4, 8, 13, 0.97));
  backdrop-filter: blur(20px);
}
.panel-hd { display: flex; align-items: center; justify-content: space-between; padding-bottom: 16px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.panel-dots { display: flex; gap: 6px; }
.panel-dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, 0.18); }
.panel-dots i:first-child { background: #00B4D8; box-shadow: 0 0 10px #00B4D8; }
.panel-hd span { font-family: var(--ff-mono); font-size: 10.5px; letter-spacing: 0.18em; color: #6E8698; }
.panel-rows { display: grid; gap: 2px; padding: 14px 0 4px; }
.prow { display: grid; grid-template-columns: 38px 1fr auto; align-items: center; gap: 13px; padding: 14px 10px; border-radius: 10px; transition: background 0.3s; }
.prow:hover { background: rgba(255, 255, 255, 0.05); }
.prow-ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: rgba(0, 180, 216, 0.12); color: #4FD8EC; border: 1px solid rgba(0, 180, 216, 0.22); }
.prow b { display: block; font-size: 0.9rem; font-weight: 600; color: #E8F2F8; }
.prow i { display: block; font-style: normal; font-size: 0.75rem; margin-top: 2px; color: #7890A2; }
.prow em { font-family: var(--ff-mono); font-style: normal; font-size: 0.72rem; color: #4FD8EC; }
.panel-ft { margin-top: 12px; padding-top: 14px; border-top: 1px solid rgba(255, 255, 255, 0.08); display: flex; align-items: center; justify-content: space-between; }
.panel-ft span { font-size: 0.72rem; color: #6E8698; }
.panel-ft b { font-family: var(--ff-mono); font-size: 0.72rem; color: #38E8B0; font-weight: 500; }
.panel-badge {
  position: absolute; left: 22px; right: auto; bottom: -18px; padding: 10px 14px; border-radius: 12px;
  background: rgba(6, 12, 19, 0.92); border: 1px solid rgba(0, 180, 216, 0.3);
  font-size: 0.72rem; color: #9DB2C4; box-shadow: 0 20px 40px -18px #000;
  display: flex; align-items: center; gap: 8px;
}
.panel-badge b { color: #EAF2F8; font-size: 0.8rem; }

/* ---------- 8. 滚动关键词条 ---------- */
.marquee { position: relative; overflow: hidden; border-top: 1px solid rgba(255, 255, 255, 0.08); border-bottom: 1px solid rgba(255, 255, 255, 0.08); background: #04070C; }
.marquee-track { display: flex; width: max-content; animation: slide 42s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track span {
  display: inline-flex; align-items: center; gap: 22px; padding: 16px 26px;
  font-size: 0.8rem; letter-spacing: 0.14em; color: #7096AC; text-transform: uppercase; font-family: var(--ff-mono);
  white-space: nowrap;
}
.marquee-track span::after { content: "◇"; color: rgba(0, 180, 216, 0.55); font-size: 0.7rem; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- 9. Bento 服务卡 ---------- */
.bento { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; margin-top: clamp(36px, 5vw, 56px); }
.bento-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden; padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: linear-gradient(168deg, rgba(255,255,255,0.045), rgba(255,255,255,0.012) 42%, rgba(255,255,255,0.02));
  transition: border-color 0.4s, transform 0.5s var(--ease), box-shadow 0.5s var(--ease);
  isolation: isolate;
}
.bento-card::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 0%), rgba(0, 180, 216, 0.13), transparent 65%);
  transition: opacity 0.4s;
}
.bento-card::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at var(--mx, 50%) var(--my, 50%), #000, transparent 70%);
  transition: opacity 0.4s;
}
.bento-card:hover { border-color: rgba(0, 180, 216, 0.42); transform: translateY(-4px); box-shadow: 0 30px 70px -34px rgba(0, 180, 216, 0.55); }
.bento-card:hover::before, .bento-card:hover::after { opacity: 1; }
.bento-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.bento-ic {
  width: 48px; height: 48px; border-radius: 13px; display: grid; place-items: center;
  border: 1px solid var(--line-2); background: var(--surface);
  color: var(--accent); transition: background 0.4s, color 0.4s, border-color 0.4s;
}
.bento-card:hover .bento-ic { background: var(--accent); color: #04212F; border-color: transparent; }
.bento-no { font-family: var(--ff-mono); font-size: 0.72rem; letter-spacing: 0.16em; color: var(--fg-3); }
.bento-card h3 { margin-top: 22px; font-size: clamp(1.15rem, 1.8vw, 1.4rem); }
.bento-card h3 small { display: block; font-size: 0.7rem; font-family: var(--ff-mono); letter-spacing: 0.2em; color: var(--fg-3); font-weight: 500; margin-top: 6px; }
.bento-card p { margin-top: 14px; color: var(--fg-2); font-size: 0.93rem; line-height: 1.8; }
.bento-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.bento-link { display: inline-flex; align-items: center; gap: 8px; margin-top: auto; padding-top: 24px; font-size: 0.85rem; font-weight: 600; color: var(--accent); }
.bento-link svg { transition: transform 0.35s var(--ease); }
.bento-card:hover .bento-link svg { transform: translateX(5px); }
.bento-card .bento-visual { position: relative; margin-top: 22px; height: 88px; border-radius: 12px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-3); }
.bento-card .bento-visual svg { width: 100%; height: 100%; }
.bento-card.feature { background: linear-gradient(160deg, var(--bg-3), var(--bg-2) 60%); }

/* ---------- 10. 数据带 ---------- */
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.stat { background: var(--bg); padding: clamp(20px, 3vw, 30px); }
.stat b { display: block; font-size: clamp(1.8rem, 3.4vw, 2.5rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat b small { font-size: 0.45em; font-weight: 600; color: var(--accent); margin-left: 2px; }
.stat > span { display: block; margin-top: 10px; font-size: 0.8rem; color: var(--fg-2); line-height: 1.6; }
.stat b span { display: inline; margin: 0; font-size: inherit; color: inherit; line-height: inherit; }

/* ---------- 11. 流程 / 时间轴 ---------- */
.flow { display: grid; gap: 0; margin-top: clamp(32px, 4vw, 48px); }
.flow-item { position: relative; display: grid; grid-template-columns: 54px 1fr; gap: 20px; padding: 26px 0; border-top: 1px solid var(--line); }
.flow-item:last-child { border-bottom: 1px solid var(--line); }
.flow-no { font-family: var(--ff-mono); font-size: 0.8rem; color: var(--accent); letter-spacing: 0.1em; padding-top: 3px; }
.flow-body h3 { font-size: 1.1rem; }
.flow-body p { margin-top: 8px; color: var(--fg-2); font-size: 0.92rem; }
.flow-item::after {
  content: ""; position: absolute; left: 0; top: -1px; width: 0; height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent); transition: width 0.7s var(--ease);
}
.flow-item.in::after { width: 100%; }

/* ---------- 12. 案例 ---------- */
.case-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; margin-top: clamp(32px, 4vw, 48px); }
.case-card {
  position: relative; display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-2);
  transition: transform 0.5s var(--ease), border-color 0.4s, box-shadow 0.5s;
}
.case-card:hover { transform: translateY(-5px); border-color: rgba(0, 180, 216, 0.35); box-shadow: var(--shadow); }
.case-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-3); }
.case-media img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.55) contrast(1.06) brightness(0.82); transition: transform 0.9s var(--ease), filter 0.6s; }
.case-card:hover .case-media img { transform: scale(1.05); filter: grayscale(0) contrast(1.02) brightness(0.9); }
.case-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4, 7, 12, 0.1) 0%, rgba(4, 7, 12, 0.75) 100%); }
.case-media .tag { position: absolute; left: 16px; top: 16px; z-index: 2; background: rgba(4, 7, 12, 0.6); backdrop-filter: blur(8px); color: #D7E7F2; border-color: rgba(255, 255, 255, 0.16); }
.case-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 1.12rem; }
.case-body p { margin-top: 10px; color: var(--fg-2); font-size: 0.9rem; flex: 1; }
.case-metrics { display: flex; gap: 22px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); }
.case-metrics div b { display: block; font-size: 1.15rem; color: var(--accent); font-weight: 700; }
.case-metrics div span { font-size: 0.72rem; color: var(--fg-3); }

/* ---------- 13. 博客卡 ---------- */
.post-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; margin-top: 32px; }
.post-card {
  display: flex; flex-direction: column; padding: clamp(22px, 2.4vw, 28px);
  border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2);
  transition: transform 0.45s var(--ease), border-color 0.35s, background 0.35s;
}
.post-card:hover { transform: translateY(-3px); border-color: var(--line-2); background: var(--bg-3); }
.post-meta { display: flex; align-items: center; gap: 12px; font-family: var(--ff-mono); font-size: 0.72rem; color: var(--fg-3); letter-spacing: 0.06em; }
.post-tag { color: var(--accent); border: 1px solid var(--accent-soft); background: var(--accent-soft); padding: 2px 9px; border-radius: 999px; }
.post-card h3 { margin-top: 16px; font-size: 1.08rem; line-height: 1.4; letter-spacing: -0.015em; }
.post-card p { margin-top: 10px; color: var(--fg-2); font-size: 0.88rem; line-height: 1.75; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-more { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; font-size: 0.78rem; color: var(--fg-3); }
.post-more b { color: var(--fg-2); font-weight: 600; }
.post-more .arr { margin-left: auto; transition: transform 0.35s var(--ease); color: var(--accent); flex-shrink: 0; }
.post-card:hover .post-more .arr { transform: translateX(4px); }
.post-more-row { margin-top: 26px; }
.filter { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.chip {
  display: inline-flex; align-items: center; gap: 7px; height: 34px; padding: 0 14px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--fg-2); font-size: 0.82rem; transition: all 0.25s;
}
.chip span { font-family: var(--ff-mono); font-size: 0.68rem; color: var(--fg-3); }
.chip:hover { border-color: var(--line-2); color: var(--fg); }
.chip.is-on { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.chip.is-on span { color: var(--bg); opacity: 0.6; }

/* ---------- 14. 文章页 ---------- */
.post-hero { padding-top: calc(var(--hdr) + clamp(40px, 6vw, 84px)); padding-bottom: clamp(28px, 4vw, 48px); position: relative; overflow: hidden; }
.post-hero::before {
  content: ""; position: absolute; inset: -40% 30% 40% -10%; z-index: -1;
  background: radial-gradient(circle at 30% 30%, rgba(0, 180, 216, 0.16), transparent 62%); filter: blur(40px);
}
.crumb { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--fg-3); font-family: var(--ff-mono); letter-spacing: 0.04em; }
.crumb a:hover { color: var(--accent); }
.crumb i { font-style: normal; opacity: 0.5; }
.post-title { margin-top: 22px; font-size: clamp(1.9rem, 4.4vw, 3.3rem); line-height: 1.16; letter-spacing: -0.03em; max-width: 960px; }
.post-sub { margin-top: 20px; max-width: 720px; color: var(--fg-2); font-size: clamp(0.98rem, 1.2vw, 1.1rem); }
.post-info { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 26px; font-size: 0.8rem; color: var(--fg-3); }
.post-info .mono { color: var(--fg-2); }
.post-layout { display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 5vw, 64px); align-items: start; padding-bottom: clamp(60px, 8vw, 110px); }
.toc { position: sticky; top: calc(var(--hdr) + 24px); display: none; padding: 22px; border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2); }
.toc h4 { font-family: var(--ff-mono); font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--fg-3); font-weight: 500; }
.toc a { display: block; padding: 7px 0 7px 12px; margin-top: 2px; font-size: 0.82rem; color: var(--fg-2); border-left: 1px solid var(--line); line-height: 1.5; transition: color 0.25s, border-color 0.25s; }
.toc a:hover { color: var(--accent); border-left-color: var(--accent); }
.toc .toc-cta { margin-top: 18px; padding: 14px; border-radius: 10px; background: var(--surface); border-left: 0; font-size: 0.78rem; color: var(--fg-2); }
.toc .toc-cta b { display: block; color: var(--fg); font-size: 0.85rem; margin-bottom: 6px; }

.prose { max-width: 760px; font-size: 1.02rem; line-height: 1.95; color: var(--fg-2); }
.prose > * + * { margin-top: 1.25em; }
.prose h2 { margin-top: 2.2em; font-size: clamp(1.3rem, 2.2vw, 1.65rem); color: var(--fg); padding-left: 16px; position: relative; }
.prose h2::before { content: ""; position: absolute; left: 0; top: 0.18em; bottom: 0.18em; width: 3px; border-radius: 2px; background: linear-gradient(180deg, var(--accent), transparent); }
.prose h3 { margin-top: 1.8em; font-size: 1.12rem; color: var(--fg); }
.prose h4 { margin-top: 1.6em; font-size: 1rem; color: var(--fg); }
.prose strong { color: var(--fg); font-weight: 650; }
.prose a { color: var(--accent); border-bottom: 1px solid var(--accent-soft); transition: border-color 0.25s; }
.prose a:hover { border-bottom-color: var(--accent); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 0.45em; }
.prose li::marker { color: var(--accent); }
.prose blockquote {
  margin: 1.8em 0; padding: 20px 24px; border-left: 2px solid var(--accent);
  border-radius: 0 12px 12px 0; background: var(--surface); color: var(--fg);
  font-size: 1rem;
}
.prose blockquote p { margin: 0; }
.prose code { font-family: var(--ff-mono); font-size: 0.86em; padding: 2px 6px; border-radius: 5px; background: var(--surface-2); color: var(--accent); }
.prose pre.code { padding: 20px; border-radius: 12px; background: #05090F; border: 1px solid var(--line); overflow-x: auto; }
.prose pre.code code { background: none; padding: 0; color: #C9DCEA; font-size: 0.84rem; line-height: 1.7; }
.prose figure { margin: 2em 0; }
.prose figure img { border-radius: 12px; border: 1px solid var(--line); }
.prose figcaption { margin-top: 10px; font-size: 0.78rem; color: var(--fg-3); text-align: center; }
.prose hr { margin: 2.4em 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; }
.prose table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.prose th, .prose td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--line); }
.prose th { background: var(--surface); color: var(--fg); font-weight: 600; font-size: 0.82rem; }
.prose tr:last-child td { border-bottom: 0; }

.post-cta {
  margin-top: 3em; padding: clamp(24px, 3vw, 34px); border-radius: var(--r-lg);
  border: 1px solid var(--line); background: linear-gradient(150deg, var(--surface), transparent);
  display: grid; gap: 16px;
}
.post-cta h3 { font-size: 1.1rem; }
.post-cta p { font-size: 0.9rem; color: var(--fg-2); max-width: 520px; }
.related { border-top: 1px solid var(--line); padding-top: clamp(40px, 5vw, 64px); }
.related .post-grid { margin-top: 24px; }

/* ---------- 15. 功能块 / 列表 ---------- */
.split { display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 5vw, 64px); align-items: center; }
.split > * { min-width: 0; }
.feature-list { display: grid; gap: 18px; margin-top: 28px; }
.feature-item { display: grid; grid-template-columns: 40px 1fr; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.feature-item:last-child { border-bottom: 0; padding-bottom: 0; }
.feature-ic { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); border: 1px solid var(--line); }
.feature-item h3 { font-size: 1rem; }
.feature-item p { margin-top: 6px; font-size: 0.9rem; color: var(--fg-2); }

.quotecard { padding: clamp(24px, 3vw, 36px); border-radius: var(--r-lg); border: 1px solid var(--line); background: var(--bg-2); position: relative; overflow: hidden; }
.quotecard::before { content: "“"; position: absolute; left: 10px; top: -18px; font-size: 8rem; color: var(--accent); opacity: 0.12; line-height: 1; }
.quotecard p { position: relative; font-size: clamp(1rem, 1.6vw, 1.2rem); color: var(--fg); line-height: 1.8; }
.quotecard footer { margin-top: 20px; font-size: 0.82rem; color: var(--fg-3); display: flex; align-items: center; gap: 10px; }
.quotecard footer b { color: var(--fg-2); font-weight: 600; }

/* ---------- 16. 表格 / 价格 ---------- */
.plan-grid { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 36px; }
.plan { padding: 28px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-2); display: flex; flex-direction: column; }
.plan.hot { border-color: rgba(0, 180, 216, 0.45); box-shadow: var(--glow); position: relative; }
.plan.hot::after { content: "常用"; position: absolute; right: 18px; top: 18px; font-size: 0.68rem; padding: 3px 9px; border-radius: 999px; background: var(--accent); color: #04212F; font-weight: 700; }
.plan h3 { font-size: 1.05rem; }
.plan .price { margin: 14px 0 4px; font-size: 1.9rem; font-weight: 700; letter-spacing: -0.03em; }
.plan .price small { font-size: 0.8rem; font-weight: 500; color: var(--fg-3); margin-left: 4px; }
.plan .desc { font-size: 0.85rem; color: var(--fg-3); min-height: 2.6em; }
.plan ul { list-style: none; padding: 0; margin: 18px 0 22px; display: grid; gap: 10px; }
.plan li { display: grid; grid-template-columns: 16px 1fr; gap: 10px; font-size: 0.88rem; color: var(--fg-2); }
.plan li svg { color: var(--accent); margin-top: 5px; }
.plan .btn { margin-top: auto; }

/* ---------- 17. 联系表单 ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: clamp(32px, 5vw, 56px); align-items: start; }
.contact-grid > * { min-width: 0; }
.form-card { padding: clamp(24px, 3.4vw, 40px); border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-2); box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr; gap: 14px; }
.field { display: grid; gap: 8px; margin-bottom: 16px; }
.field label { font-size: 0.78rem; color: var(--fg-2); letter-spacing: 0.02em; }
.field label b { color: var(--danger); font-weight: 400; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 15px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg); color: var(--fg);
  transition: border-color 0.25s, box-shadow 0.25s, background 0.25s;
  font-size: 0.92rem;
}
.field textarea { min-height: 108px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); background: var(--bg-2);
}
.field input::placeholder, .field textarea::placeholder { color: var(--fg-3); }
.hp { position: absolute; left: -9999px; opacity: 0; pointer-events: none; }
.form-note { font-size: 0.76rem; color: var(--fg-3); margin-top: 14px; line-height: 1.7; }
.form-status { margin-top: 16px; font-size: 0.86rem; padding: 12px 14px; border-radius: 10px; display: none; }
.form-status.ok { display: block; background: rgba(56, 232, 176, 0.1); color: #38E8B0; border: 1px solid rgba(56, 232, 176, 0.3); }
.form-status.err { display: block; background: rgba(255, 107, 107, 0.1); color: #FF8C8C; border: 1px solid rgba(255, 107, 107, 0.3); }
.contact-list { display: grid; gap: 2px; margin-top: 30px; }
.contact-item { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 16px 0; border-top: 1px solid var(--line); }
.contact-item:last-child { border-bottom: 1px solid var(--line); }
.contact-item .ci-ic { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--line); color: var(--accent); }
.contact-item span { display: block; font-size: 0.74rem; color: var(--fg-3); font-family: var(--ff-mono); letter-spacing: 0.08em; }
.contact-item b { display: block; font-size: 0.98rem; margin-top: 3px; font-weight: 600; }
.contact-item b a:hover { color: var(--accent); }

/* ---------- 18. 通用卡片 / 网格 ---------- */
.grid-3 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.card { padding: clamp(22px, 2.6vw, 30px); border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2); }
.card h3 { font-size: 1.02rem; }
.card p { margin-top: 10px; font-size: 0.9rem; color: var(--fg-2); }
.card .no { font-family: var(--ff-mono); font-size: 0.72rem; color: var(--accent); letter-spacing: 0.14em; }
.card h3 + p { margin-top: 8px; }

/* ---------- 19. CTA ---------- */
.cta {
  position: relative; overflow: hidden; border-radius: var(--r-xl);
  padding: clamp(36px, 6vw, 76px) clamp(24px, 4vw, 64px);
  background: linear-gradient(140deg, #08283F 0%, #04090F 52%, #072033 100%);
  border: 1px solid rgba(0, 180, 216, 0.24);
  color: #EAF2F8;
  isolation: isolate;
}
.cta::before {
  content: ""; position: absolute; inset: -60% -20% auto auto; width: 70%; aspect-ratio: 1; z-index: -1;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.4), transparent 62%); filter: blur(60px);
}
.cta::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0.5;
  background-image: linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 70% 30%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000, transparent 72%);
}
.cta h2 { color: #fff; max-width: 640px; }
.cta p { margin-top: 18px; color: #A9C2D4; max-width: 520px; font-size: 0.98rem; }
.cta-act { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.cta .btn-ghost { border-color: rgba(255, 255, 255, 0.22); color: #EAF2F8; }
.cta-mini { margin-top: 22px; font-size: 0.76rem; color: #7E97AB; display: flex; flex-wrap: wrap; gap: 18px; }

/* ---------- 20. 页脚 ---------- */
.ftr { position: relative; overflow: hidden; background: #03060A; border-top: 1px solid rgba(255, 255, 255, 0.08); color: #93A8BA; padding: clamp(48px, 6vw, 76px) 0 28px; }
html[data-theme="light"] .ftr { background: #071420; }
.ftr-glow { position: absolute; left: 50%; top: -140px; transform: translateX(-50%); width: 900px; height: 280px; background: radial-gradient(ellipse, rgba(0, 180, 216, 0.18), transparent 70%); filter: blur(40px); pointer-events: none; }
.ftr-top { position: relative; display: grid; grid-template-columns: 1fr; gap: 36px; }
.ftr-brand img { height: 34px; width: auto; filter: brightness(0) invert(1); }
.ftr-slogan { margin-top: 18px; font-size: 1.05rem; color: #E7F1F8; letter-spacing: -0.01em; font-weight: 600; }
.ftr-desc { margin-top: 10px; font-size: 0.84rem; line-height: 1.8; color: #8199AB; max-width: 380px; }
.ftr-social { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.ftr-social a { font-size: 0.78rem; padding: 7px 14px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, 0.14); color: #B7CBD9; transition: all 0.25s; }
.ftr-social a:hover { border-color: var(--cyan); color: var(--cyan); }
.ftr-col h4 { font-size: 0.8rem; color: #E7F1F8; letter-spacing: 0.08em; margin-bottom: 16px; font-weight: 600; }
.ftr-col a, .ftr-col p { display: block; font-size: 0.84rem; color: #8199AB; padding: 5px 0; transition: color 0.2s; }
.ftr-col a:hover { color: #5CE1F0; }
.ftr-cta { display: inline-flex !important; align-items: center; gap: 8px; margin-top: 14px; color: #E7F1F8 !important; font-size: 0.84rem; border-bottom: 1px solid rgba(0, 180, 216, 0.5); padding-bottom: 4px !important; width: fit-content; }
.ftr-cta span { transition: transform 0.3s var(--ease); }
.ftr-cta:hover span { transform: translateX(4px); }
.ftr-bot { margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.08); display: grid; gap: 10px; font-size: 0.74rem; color: #6A8094; }
.ftr-legal { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.ftr-legal a:hover { color: #5CE1F0; }
.ftr-legal span { opacity: 0.35; }
.ftr-icp { font-family: var(--ff-mono); font-size: 0.7rem; letter-spacing: 0.02em; }

/* ---------- 21. 揭幕动画 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out); transition-delay: calc(var(--i, 0) * 70ms); }
.reveal.in { opacity: 1; transform: none; }
.reveal-l { opacity: 0; transform: translateX(-24px); transition: all 0.9s var(--ease-out); }
.reveal-l.in { opacity: 1; transform: none; }
.hero-anim { opacity: 0; transform: translateY(20px); animation: heroUp 1s var(--ease-out) forwards; }
.hero-anim:nth-child(1) { animation-delay: 0.05s; }
.hero-anim:nth-child(2) { animation-delay: 0.16s; }
.hero-anim:nth-child(3) { animation-delay: 0.27s; }
.hero-anim:nth-child(4) { animation-delay: 0.38s; }
.hero-anim:nth-child(5) { animation-delay: 0.5s; }
@keyframes heroUp { to { opacity: 1; transform: none; } }

/* 光标光晕 */
.cursor-glow {
  position: fixed; left: 0; top: 0; width: 420px; height: 420px; border-radius: 50%;
  pointer-events: none; z-index: 1; opacity: 0;
  background: radial-gradient(circle, rgba(0, 180, 216, 0.10), transparent 62%);
  transform: translate3d(-50%, -50%, 0); transition: opacity 0.4s;
  will-change: transform;
}
body.has-cursor .cursor-glow { opacity: 1; }

/* 进度条 */
.read-bar { position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 200; background: linear-gradient(90deg, var(--cyan), var(--cyan-lt)); box-shadow: 0 0 12px rgba(0, 180, 216, 0.8); }

/* ---------- 22. 深色舞台（Hero 区固定深色） ---------- */
.stage-dark { background: #04070C; color: #EAF2F8; }
.stage-dark .h2, .stage-dark h1, .stage-dark h2, .stage-dark h3 { color: #F4FAFF; }
.stage-dark .lead, .stage-dark p { color: #A8C0D2; }
.stage-dark .kicker { color: var(--cyan-lt); }

/* ---------- 23. 响应式 ---------- */
@media (min-width: 640px) {
  .post-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .plan-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(4, 1fr); }
  .ftr-top { grid-template-columns: 1fr 1fr; }
  .ftr-bot { grid-template-columns: 1fr auto; align-items: center; }
  .ftr-bot .ftr-icp { grid-column: 1 / -1; }
}

@media (min-width: 900px) {
  .brand-txt { display: block; }
  .hero-in { grid-template-columns: 1.08fr 0.92fr; }
  .bento { grid-template-columns: repeat(6, 1fr); }
  .bento-card { grid-column: span 3; }
  .bento-card.wide { grid-column: span 4; }
  .bento-card.narrow { grid-column: span 2; }
  .post-layout { grid-template-columns: minmax(0, 1fr) 280px; }
  .toc { display: block; }
  .split { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 0.9fr 1.1fr; }
  .plan-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .ftr-top { grid-template-columns: 1.6fr 1fr 1fr 1.2fr; }
}

@media (min-width: 1024px) {
  .nav { display: flex; }
  .burger, .drawer { display: none; }
  .hdr-cta { display: inline-flex; }
  .case-grid { grid-template-columns: repeat(3, 1fr); }
  .post-grid { grid-template-columns: repeat(3, 1fr); }
  .hero { padding-top: calc(var(--hdr) + 90px); }
  .panel { transform: perspective(1400px) rotateY(-9deg) rotateX(4deg); }
}

@media (min-width: 1280px) {
  .hero-in { grid-template-columns: 1.05fr 0.95fr; gap: 80px; }
}

/* 降低动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal, .reveal-l, .hero-anim { opacity: 1 !important; transform: none !important; }
  .cursor-glow, .hero-scan, .hero-beams { display: none; }
}

/* 打印 */
@media print {
  .hdr, .ftr, .hero-stage, .cursor-glow, .cta, .post-cta { display: none !important; }
  .hero { background: #04070C !important; }
  body { background: #fff; color: #000; }
  .prose { color: #000; max-width: none; }
}

/* ---------- 24. 内页页头 ---------- */
.page-head {
  position: relative; overflow: hidden;
  padding-top: calc(var(--hdr) + clamp(36px, 5vw, 64px));
  padding-bottom: clamp(30px, 4vw, 52px);
  border-bottom: 1px solid var(--line);
}
.page-head::before {
  content: ""; position: absolute; inset: -60% 40% 30% -20%; z-index: -1;
  background: radial-gradient(circle at 40% 40%, rgba(0, 180, 216, 0.13), transparent 62%);
  filter: blur(30px); pointer-events: none;
}
html[data-theme="light"] .page-head::before { background: radial-gradient(circle at 40% 40%, rgba(0, 135, 163, 0.10), transparent 62%); }
.page-head-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 36px; align-items: end; }
.page-head-grid > * { min-width: 0; }
.page-side { display: grid; align-content: end; }
.side-row { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding: 13px 0; border-top: 1px solid var(--line); }
.side-row span { font-family: var(--ff-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--fg-3); text-transform: uppercase; flex-shrink: 0; }
.side-row b { font-weight: 600; font-size: 0.86rem; text-align: right; }

/* ---------- 25. 服务列表（行式） ---------- */
.svc-list { border-top: 1px solid var(--line); }
.svc-row {
  display: grid; grid-template-columns: 44px 1fr; gap: 18px; align-items: start;
  padding: clamp(24px, 3vw, 34px) 12px; border-bottom: 1px solid var(--line);
  transition: background 0.4s var(--ease), padding 0.4s var(--ease);
}
.svc-row:hover { background: var(--surface); padding-left: 22px; }
.svc-idx { font-size: 0.78rem; color: var(--accent); padding-top: 6px; letter-spacing: 0.08em; }
.svc-main h2 { font-size: clamp(1.25rem, 2.4vw, 1.7rem); letter-spacing: -0.025em; }
.svc-main p { margin-top: 10px; color: var(--fg-2); font-size: 0.92rem; line-height: 1.85; max-width: 660px; }
.svc-side { display: none; text-align: right; align-items: end; }
.svc-side span { display: block; font-size: 0.72rem; color: var(--fg-3); }
.svc-side .mono { font-size: 1.05rem; color: var(--fg); letter-spacing: -0.01em; margin-bottom: 4px; }
.svc-arr { margin-top: 12px; color: var(--accent); font-size: 1.1rem; transition: transform 0.4s var(--ease); }
.svc-row:hover .svc-arr { transform: translateX(6px); }

/* ---------- 26. 对比 ---------- */
.compare { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: clamp(32px, 4vw, 48px); align-items: stretch; }
.compare-col { padding: clamp(22px, 3vw, 30px); border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--bg-2); }
.compare-col.is-ai { border-color: rgba(0, 180, 216, 0.35); box-shadow: var(--glow); background: linear-gradient(160deg, var(--bg-3), var(--bg-2)); }
.compare-hd { display: flex; align-items: baseline; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.compare-hd .mono { font-size: 0.66rem; letter-spacing: 0.16em; color: var(--fg-3); }
.compare-hd h3 { font-size: 1.05rem; }
.compare-col ul { list-style: none; padding: 0; margin-top: 18px; display: grid; gap: 12px; }
.compare-col li { position: relative; padding-left: 18px; font-size: 0.9rem; color: var(--fg-2); line-height: 1.7; }
.compare-col li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; border: 1px solid var(--fg-3); }
.compare-col.is-ai li::before { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 8px var(--accent); }
.compare-col li b { color: var(--fg); }
.compare-vs { display: grid; place-items: center; font-family: var(--ff-mono); font-size: 0.7rem; letter-spacing: 0.14em; color: var(--fg-3); }

/* ---------- 27. 步骤卡 ---------- */
.step-cards { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: clamp(32px, 4vw, 48px); }
.step-card {
  position: relative; padding: 26px; border: 1px solid var(--line); border-radius: var(--r);
  background: var(--bg-2); transition: transform 0.45s var(--ease), border-color 0.35s;
}
.step-card:hover { transform: translateY(-3px); border-color: rgba(0, 180, 216, 0.4); }
.step-no { font-size: 0.7rem; letter-spacing: 0.16em; color: var(--accent); }
.step-card h3 { margin-top: 12px; font-size: 1.05rem; }
.step-card p { margin-top: 10px; font-size: 0.88rem; color: var(--fg-2); line-height: 1.8; }
.step-out { display: block; margin-top: 18px; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 0.72rem; color: var(--fg-3); }

/* ---------- 28. 杂项元件 ---------- */
.check-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.check-grid span { position: relative; padding-left: 18px; font-size: 0.8rem; color: var(--fg-2); line-height: 1.6; }
.check-grid span::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-size: 0.72rem; }
.stack { display: flex; flex-wrap: wrap; gap: 8px; }
.stack span { font-family: var(--ff-mono); font-size: 0.72rem; letter-spacing: 0.03em; padding: 5px 10px; border-radius: 6px; border: 1px solid var(--line); color: var(--fg-2); background: var(--surface); }
.note-line { margin-top: 22px; font-size: 0.78rem; color: var(--fg-3); line-height: 1.85; }
.note-box { padding: 22px 24px; border: 1px solid var(--line); border-left: 2px solid var(--accent); border-radius: 0 12px 12px 0; background: var(--surface); }
.note-box b { display: block; font-size: 0.9rem; margin-bottom: 8px; }
.note-box p { font-size: 0.88rem; color: var(--fg-2); line-height: 1.85; }
.facts div { display: flex; justify-content: space-between; gap: 18px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 0.84rem; }
.facts div:last-child { border-bottom: 0; }
.facts span { color: var(--fg-3); flex-shrink: 0; }
.facts b { text-align: right; font-weight: 600; line-height: 1.6; }
.empty { padding: 40px; text-align: center; color: var(--fg-3); border: 1px dashed var(--line); border-radius: var(--r); }

/* ---------- 29. FAQ ---------- */
.faq { margin-top: 32px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  position: relative; padding: 20px 40px 20px 0; cursor: pointer; list-style: none;
  font-size: 1rem; font-weight: 600; color: var(--fg); transition: color 0.25s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--accent); }
.faq summary::after {
  content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  font-family: var(--ff-mono); font-size: 1.1rem; color: var(--accent); font-weight: 400;
}
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { color: var(--accent); }
.faq-a { padding: 0 40px 22px 0; color: var(--fg-2); font-size: 0.92rem; line-height: 1.95; }
.faq-a p + p { margin-top: 12px; }

/* ---------- 30. 内页响应式 ---------- */
@media (min-width: 640px) {
  .step-cards { grid-template-columns: 1fr 1fr; }
  .svc-row { grid-template-columns: 56px 1fr; }
}
@media (min-width: 900px) {
  .page-head-grid { grid-template-columns: 1.45fr 0.55fr; gap: 56px; }
  .svc-row { grid-template-columns: 56px 1fr 150px; gap: 28px; }
  .svc-side { display: grid; }
  .compare { grid-template-columns: 1fr auto 1fr; gap: 18px; }
  .compare-vs { padding: 0 6px; }
  .step-cards { grid-template-columns: repeat(3, 1fr); }
  .step-cards > :nth-child(4), .step-cards > :nth-child(5) { grid-column: span 1; }
}


/* ---------- 31. 移动端细节 ---------- */
@media (max-width: 899px) {
  .panel { transform: none; }
  .panel-badge { left: auto; right: 8px; bottom: -18px; }
  .hero-in { gap: 40px; }
  /* 小屏内容更密，背景降一档噪，保证文字优先 */
  #hbTerrain { opacity: 0.52; }
  #hbFlow { opacity: 0.76; }
  .hero-beams { opacity: 0.7; }
}
@media (max-width: 640px) {
  .hero-actions { gap: 10px; }
  .hero-actions .btn { flex: 1 1 46%; justify-content: center; padding-inline: 16px; }
  .hero-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 12px; margin-top: 32px; padding-top: 20px; }
  .hero-fact b { font-size: 1.15rem; }
  .hero h1 { margin-top: 20px; }
  .hero-sub { font-size: 0.95rem; }
  .section { padding: 56px 0; }
  .wrap { padding: 0 18px; }
  .hdr-in { padding: 0 18px; }
  .svc-row { padding-left: 0 !important; }
  .faq summary { font-size: 0.95rem; }
  .prose { font-size: 0.98rem; }
  .post-title { font-size: clamp(1.6rem, 7vw, 2.2rem); }
}


/* 横向流程（卡片内） */
@media (min-width: 900px) {
  .flow-h { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 0 18px; }
  .flow-h .flow-item { grid-template-columns: 1fr; gap: 10px; padding: 22px 0 0; border-bottom: 0; }
  .flow-h .flow-item::after { width: 0; transition: width 0.7s var(--ease); }
  .flow-h .flow-item.in::after { width: 100%; }
  .flow-h .flow-no { padding-top: 0; }
  .flow-h .flow-body h3 { font-size: 0.98rem; }
  .flow-h .flow-body p { font-size: 0.84rem; }
}