/* ============================================================
   刀锋工具箱 BladePoint 产品子站样式
   品牌：与潜鹿主站统一（夜墨蓝 + 月白 + 翠绿）
   ============================================================ */
:root {
  --bg:        #070A10;
  --bg-2:      #0E1320;
  --bg-3:      #141B2C;
  --line:      rgba(255, 255, 255, 0.07);
  --line-2:    rgba(255, 255, 255, 0.13);
  --ink:       #ECEAE2;
  --ink-2:     #B5B3A9;
  --ink-3:     #6F6E66;
  --ink-4:     #3D4150;
  --accent:    #00E5A0;
  --accent-2:  #7DD3FC;
  --accent-soft: rgba(0, 229, 160, 0.08);

  --f-sans:    "Inter", "Noto Sans SC", -apple-system, BlinkMacSystemFont,
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --f-serif:   "Instrument Serif", "Songti SC", "Source Han Serif SC",
               "Noto Serif SC", "Times New Roman", serif;
  --f-mono:    "JetBrains Mono", "SF Mono", "Consolas", monospace;

  --ease:      cubic-bezier(0.22, 0.8, 0.28, 1);
  --ease-out:  cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1280px;
  --gutter:    clamp(20px, 4vw, 56px);
  --nav-h:     68px;
  --r:         22px;
  --r-lg:      32px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--f-sans);
  font-size: 16px; line-height: 1.65;
  color: var(--ink); background: var(--bg);
  font-feature-settings: "ss01", "ss02", "cv11";
  overflow-x: hidden; min-height: 100vh;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
::selection { background: var(--accent); color: var(--bg); }
.container { width: min(1280px, 100% - var(--gutter)); margin-inline: auto; }
.serif { font-family: var(--f-serif); font-style: italic; font-weight: 400; }
.mono { font-family: var(--f-mono); font-feature-settings: "tnum"; letter-spacing: 0.02em; }
.skip { position: absolute; left: 16px; top: -80px; z-index: 200; padding: 12px 20px; border-radius: 10px; background: var(--accent); color: var(--bg); font-weight: 600; transition: top 0.2s var(--ease); }
.skip:focus { top: 16px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 6px; }

/* —— 背景 —— */
.bg-grid { position: fixed; inset: 0; z-index: -3; pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.045) 1px, transparent 0);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.bg-glow { position: fixed; z-index: -2; pointer-events: none; width: 720px; height: 720px; border-radius: 50%; filter: blur(120px); opacity: 0.5; }
.bg-glow-tr { top: -260px; right: -200px; background: radial-gradient(circle, rgba(0, 229, 160, 0.32), transparent 65%); animation: drift1 18s ease-in-out infinite alternate; }
.bg-glow-bl { bottom: -260px; left: -260px; background: radial-gradient(circle, rgba(125, 211, 252, 0.18), transparent 65%); animation: drift2 22s ease-in-out infinite alternate; }
@keyframes drift1 { from { transform: translate(0,0); } to { transform: translate(-40px, 50px); } }
@keyframes drift2 { from { transform: translate(0,0); } to { transform: translate(50px, -40px); } }
#stars { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* —— 浮动导航 —— */
.nav { position: fixed; top: 16px; left: 0; right: 0; z-index: 100; display: flex; justify-content: center; pointer-events: none; }
.nav-inner { pointer-events: auto; display: flex; align-items: center; gap: 4px; height: 52px; padding: 6px 8px 6px 18px; border-radius: 999px; background: rgba(7, 10, 16, 0.65); backdrop-filter: blur(20px) saturate(140%); -webkit-backdrop-filter: blur(20px) saturate(140%); border: 1px solid var(--line); box-shadow: 0 18px 50px -16px rgba(0,0,0,0.5); transition: background 0.3s var(--ease), border-color 0.3s; }
.nav.scrolled .nav-inner { background: rgba(7, 10, 16, 0.82); border-color: var(--line-2); }
.brand { display: flex; align-items: center; gap: 9px; padding: 0 14px 0 6px; height: 40px; border-radius: 999px; color: var(--ink); }
.brand svg { color: var(--accent); flex: none; }
.brand span { font-family: var(--f-serif); font-style: italic; font-size: 17px; letter-spacing: 0.01em; }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-links a { display: inline-flex; align-items: center; height: 40px; padding: 0 14px; border-radius: 999px; font-size: 13.5px; color: var(--ink-2); font-weight: 500; transition: color 0.2s var(--ease), background 0.2s var(--ease); }
.nav-links a:hover { color: var(--ink); background: rgba(255,255,255,0.06); }
.nav-cta { display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 18px; border-radius: 999px; font-size: 13.5px; font-weight: 600; color: var(--bg); background: var(--accent); transition: filter 0.2s, transform 0.2s var(--ease); }
.nav-cta:hover { filter: brightness(1.1); transform: translateY(-1px); }
.nav-toggle { display: none; width: 40px; height: 40px; padding: 10px; margin-left: auto; border-radius: 999px; }
.nav-toggle span { display: block; height: 1.5px; background: var(--ink); border-radius: 2px; transition: transform 0.25s var(--ease), opacity 0.2s; }
.nav-toggle span + span { margin-top: 5px; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }

/* —— Kicker 通用 —— */
.kicker { display: inline-flex; align-items: center; gap: 12px; font-family: var(--f-mono); font-size: 12px; font-weight: 500; color: var(--ink-2); letter-spacing: 0.14em; text-transform: uppercase; }
.kicker .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); animation: pulse 2.4s ease-in-out infinite; }
.kicker .num { font-weight: 600; color: var(--accent); font-size: 13px; }
.kicker .sep { color: var(--ink-4); }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(0.7); } }

/* —— HERO —— */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; padding: calc(var(--nav-h) + 48px) 0 80px; }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(40px, 6vw, 88px); align-items: center; }
.display { font-family: var(--f-sans); font-weight: 800; font-size: clamp(48px, 9vw, 128px); line-height: 0.96; letter-spacing: -0.045em; color: var(--ink); }
.display .line { display: block; }
.display .line-2 { margin-top: clamp(-10px, -1.2vw, -4px); padding-left: clamp(32px, 7vw, 110px); }
.display em { font-family: var(--f-serif); font-style: italic; font-weight: 400; color: var(--accent); }
.lede { margin-top: 32px; max-width: 540px; font-size: clamp(15px, 1.6vw, 18px); color: var(--ink-2); line-height: 1.7; font-weight: 400; }
.lede strong { color: var(--ink); font-weight: 600; }
.actions { margin-top: 40px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 9px; min-height: 52px; padding: 14px 26px; border-radius: 999px; font-size: 14.5px; font-weight: 600; letter-spacing: -0.005em; background: var(--accent); color: var(--bg); border: 1px solid var(--accent); transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), filter 0.22s, background 0.22s; cursor: pointer; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 20px 40px -16px rgba(0, 229, 160, 0.5); filter: brightness(1.05); }
.btn:active { transform: translateY(0); }
.btn-text { background: transparent; color: var(--ink); border-color: transparent; padding: 14px 18px; box-shadow: none; }
.btn-text:hover { background: rgba(255,255,255,0.05); box-shadow: none; filter: none; }

/* 评分 */
.rating { margin-top: 40px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.stars { display: inline-flex; gap: 4px; color: var(--accent); }
.rating-info { display: inline-flex; align-items: baseline; gap: 6px; font-size: 14px; color: var(--ink-2); }
.rating-score { font-size: 22px; font-weight: 700; color: var(--ink); letter-spacing: -0.02em; }

/* HERO 手机模型（大） */
.hero-visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 540px; }
.phone { position: relative; z-index: 1; width: 220px; aspect-ratio: 9 / 18.6; border-radius: 38px; padding: 11px; background: linear-gradient(160deg, #1a2335, #0a1322 60%); border: 1px solid var(--line-2); box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7), inset 0 1px 1px rgba(255,255,255,0.12); transform: rotate(-6deg); }
.phone.big { width: 240px; transform: rotate(-6deg); }
.phone-notch { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); z-index: 2; width: 56px; height: 6px; border-radius: 99px; background: #050a12; }
.phone-screen { width: 100%; height: 100%; border-radius: 28px; overflow: hidden; background: linear-gradient(175deg, #0d1a2c 0%, #07111e 100%); padding: 26px 14px 14px; display: flex; flex-direction: column; gap: 10px; }
.ps-status { height: 4px; width: 30%; background: rgba(255,255,255,0.12); border-radius: 99px; margin-bottom: 2px; }
.ps-title { font-size: 12px; font-weight: 700; color: var(--ink); letter-spacing: -0.01em; }
.ps-search { font-size: 10px; color: var(--ink-3); background: rgba(255,255,255,0.045); border: 1px solid var(--line); border-radius: 99px; padding: 6px 10px; }
.ps-cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 6px 0; }
.ps-cat { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 8px 4px; border-radius: 10px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); text-decoration: none; }
.ps-cat i { width: 24px; height: 24px; border-radius: 7px; display: block; }
.ps-cat.c1 i { background: linear-gradient(150deg, rgba(0,229,160,0.32), rgba(59,130,246,0.18)); }
.ps-cat.c2 i { background: linear-gradient(150deg, rgba(125,211,252,0.32), rgba(59,130,246,0.2)); }
.ps-cat.c3 i { background: linear-gradient(150deg, rgba(244,114,182,0.28), rgba(168,85,247,0.2)); }
.ps-cat.c4 i { background: linear-gradient(150deg, rgba(251,191,36,0.28), rgba(249,115,22,0.2)); }
.ps-cat.c5 i { background: linear-gradient(150deg, rgba(52,211,153,0.28), rgba(16,185,129,0.2)); }
.ps-cat.c6 i { background: linear-gradient(150deg, rgba(196,181,253,0.28), rgba(139,92,246,0.2)); }
.ps-cat span { font-size: 9.5px; color: var(--ink-2); }
.ps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.ps-grid > div { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.ps-grid > div span { font-size: 8.5px; color: var(--ink-3); }
.ps-grid > div i { width: 32px; height: 32px; border-radius: 8px; }
.ps-grid .ic1 { background: linear-gradient(150deg, rgba(0,229,160,0.28), rgba(59,130,246,0.18)); }
.ps-grid .ic2 { background: linear-gradient(150deg, rgba(125,211,252,0.3), rgba(59,130,246,0.18)); }
.ps-grid .ic3 { background: linear-gradient(150deg, rgba(244,114,182,0.25), rgba(168,85,247,0.18)); }
.ps-grid .ic4 { background: linear-gradient(150deg, rgba(251,191,36,0.25), rgba(249,115,22,0.18)); }
.ps-grid .ic5 { background: linear-gradient(150deg, rgba(52,211,153,0.28), rgba(16,185,129,0.18)); }
.ps-grid .ic6 { background: linear-gradient(150deg, rgba(96,165,250,0.28), rgba(59,130,246,0.2)); }
.ps-grid .ic7 { background: linear-gradient(150deg, rgba(196,181,253,0.28), rgba(139,92,246,0.2)); }
.ps-grid .ic8 { background: linear-gradient(150deg, rgba(148,190,220,0.25), rgba(100,116,139,0.18)); }
.ps-tabs { margin-top: auto; display: flex; gap: 6px; padding-top: 8px; border-top: 1px solid var(--line); }
.ps-tabs span { flex: 1; text-align: center; padding: 5px 0; font-size: 9px; color: var(--ink-3); background: rgba(255,255,255,0.04); border-radius: 6px; }
.ps-tabs span.on { color: var(--accent); background: var(--accent-soft); }
.ps-sizes { display: flex; gap: 6px; }
.ps-sizes span { flex: 1; text-align: center; padding: 6px 0; font-size: 9px; color: var(--ink-3); background: rgba(255,255,255,0.04); border-radius: 6px; }
.ps-sizes span.on { color: var(--accent); background: var(--accent-soft); }
.ps-preview { padding: 10px 0; }
.pp-img { width: 100%; aspect-ratio: 3/4; background: linear-gradient(160deg, rgba(0,229,160,0.18), rgba(125,211,252,0.12)); border: 1px solid var(--line); border-radius: 10px; }
.ps-input { font-size: 10px; color: var(--ink-3); background: rgba(255,255,255,0.045); border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; }
.ps-list { display: flex; flex-direction: column; gap: 6px; }
.pl-row { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px; background: rgba(255,255,255,0.03); border: 1px solid var(--line); }
.pl-row i { width: 22px; height: 22px; border-radius: 6px; background: linear-gradient(150deg, rgba(0,229,160,0.28), rgba(59,130,246,0.18)); flex: none; }
.pl-row strong { display: block; font-size: 9.5px; color: var(--ink); }
.pl-row span { display: block; font-size: 8.5px; color: var(--ink-3); }
.pl-row em { font-style: normal; font-size: 8.5px; color: var(--ink-3); margin-left: auto; }
.ps-action { margin-top: auto; padding: 8px; text-align: center; font-size: 10px; color: var(--bg); background: var(--accent); border-radius: 8px; font-weight: 600; }
.phone-glow { position: absolute; inset: auto; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(0, 229, 160, 0.22), transparent 65%); filter: blur(28px); transform: translateY(40px); z-index: 0; }
.phone-badge { position: absolute; right: -8px; bottom: 30%; z-index: 2; padding: 14px 18px; background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 16px; text-align: center; box-shadow: 0 16px 40px -10px rgba(0,0,0,0.6); }
.b-line { font-size: 28px; font-weight: 800; color: var(--accent); letter-spacing: -0.02em; line-height: 1; }
.b-sub { font-family: var(--f-mono); font-size: 10px; color: var(--ink-2); letter-spacing: 0.12em; margin-top: 4px; }

/* —— Stats 区 —— */
.sec-stats { padding: 40px 0; border-block: 1px solid var(--line); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 20px 0; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat:not(:first-child) { padding-left: 28px; }
.stat dt { font-family: var(--f-sans); font-size: clamp(32px, 4.4vw, 52px); font-weight: 800; line-height: 1; letter-spacing: -0.03em; color: var(--ink); display: flex; align-items: baseline; gap: 4px; }
.stat dd { margin-top: 10px; font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.14em; text-transform: uppercase; }

/* —— Section 通用 —— */
.sec { position: relative; padding: clamp(80px, 12vw, 160px) 0; }
.sec-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,0.012) 50%, transparent); }
.sec-head { max-width: 820px; margin-bottom: clamp(48px, 6vw, 80px); }
.sec-head .kicker { margin-bottom: 24px; }
.sec-title { font-family: var(--f-sans); font-weight: 800; font-size: clamp(34px, 6vw, 76px); line-height: 1.04; letter-spacing: -0.035em; color: var(--ink); }
.sec-title em { font-style: italic; font-family: var(--f-serif); font-weight: 400; color: var(--ink-2); }
.sec-desc { margin-top: 24px; max-width: 560px; font-size: clamp(15px, 1.4vw, 17px); color: var(--ink-2); line-height: 1.75; }

/* —— 特性卡片 —— */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ft-card { position: relative; padding: 32px 28px; border: 1px solid var(--line); border-radius: var(--r-lg); background: linear-gradient(180deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005)); transition: transform 0.3s var(--ease), border-color 0.3s; overflow: hidden; }
.ft-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.ft-icon { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; color: var(--accent); background: var(--accent-soft); border: 1px solid rgba(0, 229, 160, 0.2); margin-bottom: 24px; }
.ft-card h3 { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.ft-card p { margin-top: 10px; font-size: 13.5px; color: var(--ink-2); line-height: 1.7; }
.ft-num { position: absolute; top: 28px; right: 28px; font-family: var(--f-mono); font-size: 11px; color: var(--ink-4); letter-spacing: 0.12em; }

/* —— 工具分类卡片 —— */
.cats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.cat-card { position: relative; padding: 32px 30px 28px; border: 1px solid var(--line); border-radius: var(--r-lg); background: linear-gradient(180deg, rgba(255,255,255,0.025), rgba(255,255,255,0.005)); transition: transform 0.3s var(--ease), border-color 0.3s; overflow: hidden; min-height: 240px; display: flex; flex-direction: column; }
.cat-card:hover { transform: translateY(-4px); border-color: var(--line-2); }
.cat-no { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.16em; }
.cat-card h3 { margin-top: 14px; font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.cat-card > p { margin-top: 10px; font-size: 13.5px; color: var(--ink-2); line-height: 1.6; }
.cat-card ul { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 6px 8px; }
.cat-card ul li { font-size: 12px; padding: 4px 10px; border-radius: 999px; background: rgba(255,255,255,0.04); border: 1px solid var(--line); color: var(--ink-2); }
.cat-deco { position: absolute; right: -40px; bottom: -40px; width: 140px; height: 140px; border-radius: 50%; opacity: 0.18; filter: blur(20px); }
.cat-deco.c1 { background: var(--accent); }
.cat-deco.c2 { background: var(--accent-2); }
.cat-deco.c3 { background: #F472B6; }
.cat-deco.c4 { background: #FBBF24; }
.cat-deco.c5 { background: #34D399; }
.cat-deco.c6 { background: #C4B5FD; }

/* —— 截图 —— */
.screens { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
.screen { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.shot {
  width: 100%; max-width: 220px;
  aspect-ratio: 2 / 3;
  border-radius: 22px; overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px -16px rgba(0,0,0,0.5);
  transition: transform 0.3s var(--ease), border-color 0.3s;
}
.shot img { width: 100%; height: 100%; object-fit: cover; display: block; }
.screen:hover .shot { transform: translateY(-6px); border-color: var(--line-2); }
.screen figcaption { font-family: var(--f-mono); font-size: 12px; color: var(--ink-2); letter-spacing: 0.06em; }

/* —— 下载 CTA —— */
.sec-cta { padding: clamp(60px, 8vw, 100px) 0; }
.cta { position: relative; padding: clamp(40px, 6vw, 72px); border: 1px solid var(--line-2); border-radius: var(--r-lg); background: radial-gradient(800px 400px at 80% 0%, rgba(0, 229, 160, 0.08), transparent 60%), linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.005)); display: grid; grid-template-columns: minmax(0, 1.2fr) auto; gap: 48px; align-items: center; overflow: hidden; }
.cta::before { content: ""; position: absolute; inset: 0 0 auto; height: 1px; background: linear-gradient(90deg, transparent, var(--accent), transparent); opacity: 0.6; }
.cta-text h2 { margin-top: 16px; font-size: clamp(34px, 5.4vw, 64px); font-weight: 800; line-height: 1.05; letter-spacing: -0.035em; }
.cta-text p { margin-top: 18px; color: var(--ink-2); font-size: 15px; }
.cta-actions { margin-top: 28px; display: flex; gap: 16px; flex-wrap: wrap; }
.cta-qr { display: flex; align-items: center; gap: 16px; }
.qr-box { padding: 14px; background: #fff; border-radius: 14px; }
.cta-qr span { font-size: 12.5px; color: var(--ink-2); line-height: 1.6; }
.cta-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 14px;
  text-align: center;
}

.qr-box {
  width: 120px;
  height: 120px;
  padding: 8px;
  background: #fff;
  border-radius: 6px;
  box-sizing: border-box;
}

.qr-box svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* —— FAQ —— */
.faq { max-width: 820px; }
.faqs { display: flex; flex-direction: column; border-top: 1px solid var(--line); }
.faqs li { border-bottom: 1px solid var(--line); }
.faqs details { padding: 22px 0; cursor: pointer; }
.faqs summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; font-size: 16px; font-weight: 600; color: var(--ink); list-style: none; transition: color 0.2s; }
.faqs summary::-webkit-details-marker { display: none; }
.faqs summary::after { content: "+"; font-family: var(--f-mono); font-size: 18px; color: var(--accent); transition: transform 0.3s var(--ease); }
.faqs details[open] summary::after { transform: rotate(45deg); }
.faqs details p { margin-top: 14px; color: var(--ink-2); font-size: 14.5px; line-height: 1.75; max-width: 720px; }
.faqs details a { color: var(--accent); border-bottom: 1px dashed currentColor; }

/* —— 页脚 —— */
.footer { border-top: 1px solid var(--line); padding: 56px 0 32px; background: rgba(7, 10, 16, 0.7); }
.ft-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.ft-brand { display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap; }
.ft-brand .serif { font-size: 22px; color: var(--ink); }
.ft-brand .mono { font-size: 12px; color: var(--ink-3); letter-spacing: 0.06em; }
.ft-links { display: flex; gap: 24px; flex-wrap: wrap; }
.ft-links a { font-size: 13.5px; color: var(--ink-2); transition: color 0.2s; }
.ft-links a:hover { color: var(--accent); }
.ft-bot { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 12px; color: var(--ink-3); }
.ft-legal { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 18px; }
.ft-legal a { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-3); letter-spacing: 0.04em; transition: color 0.2s var(--ease); }
.ft-legal a:hover { color: var(--ink); }
.gongan-icon { color: var(--ink-3); transition: color 0.2s var(--ease); flex: none; }
.ft-legal a:hover .gongan-icon { color: var(--accent); }
.ft-bot .mono { color: var(--accent); font-size: 11.5px; letter-spacing: 0.14em; }

/* —— 入场：默认就显示，无任何动画。.reveal class 保留作语义标记，无 CSS 效果 —— */

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-inner { padding: 6px 8px 6px 16px; }
  .nav.open .nav-links { display: flex; flex-direction: column; align-items: stretch; gap: 4px; position: absolute; top: 60px; right: 0; left: auto; width: min(220px, calc(100vw - 32px)); padding: 12px; border-radius: 18px; background: rgba(7, 10, 16, 0.95); border: 1px solid var(--line-2); box-shadow: 0 20px 50px -10px rgba(0,0,0,0.6); }
  .nav.open .nav-links a { height: 44px; padding: 0 16px; font-size: 14px; }
  .nav-cta { display: none; }

  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { min-height: auto; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .cats { grid-template-columns: repeat(2, 1fr); }
  .screens { grid-template-columns: repeat(3, 1fr); gap: 28px 18px; }
  .shot { max-width: 200px; }
  .cta { grid-template-columns: 1fr; gap: 32px; }
  .cta-qr { justify-self: start; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2n) { border-right: 0; padding-left: 24px; }
  .stat:nth-child(2n+1):not(:first-child) { padding-left: 24px; }
}

@media (max-width: 768px) {
  :root { --gutter: 20px; }
  .sec { padding: 88px 0; }
  .features, .cats { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .display { font-size: clamp(40px, 12vw, 72px); }
  .display .line-2 { padding-left: 24px; }
  .phone.big { width: 220px; }
  .phone-badge { right: 0; }
}

@media (max-width: 480px) {
  :root { --gutter: 18px; }
  .display { font-size: clamp(38px, 11vw, 60px); }
  .lede { font-size: 15px; }
  .btn { min-height: 48px; padding: 12px 22px; font-size: 14px; }
  .actions { gap: 12px; }
  .phone.big { width: 200px; }
  .screens { grid-template-columns: repeat(2, 1fr); gap: 24px 14px; }
  .shot { max-width: 100%; }
}

@media (max-width: 360px) {
  .display { font-size: 38px; }
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: 0; padding: 14px 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  #stars { display: none; }
  .bg-glow { animation: none; }
}