/* ==========================================================================
   WaiMaoSend · 独享海外邮件服务器 · 深色科技风设计系统
   配色与LOGO蓝紫青渐变呼应：#60A5FA → #8B5CF6 → #22D3EE
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Noto+Sans+SC:wght@300;400;500;700;900&display=swap');

:root{
  /* 底色 - 深色科技风 */
  --bg:#0B1120;
  --bg2:#0F172A;
  --bg3:#1E293B;
  --surface:#0F172A;
  --surface2:#1E293B;
  --surface3:#334155;

  /* 描边 */
  --border:#1E293B;
  --border2:#334155;
  --border3:#475569;

  /* 文字 */
  --t1:#F1F5F9;
  --t2:#CBD5E1;
  --t3:#94A3B8;
  --t4:#64748B;

  /* 强调色 - 蓝紫青系（匹配LOGO渐变） */
  --blue:#60A5FA;
  --cyan:#22D3EE;
  --purple:#A78BFA;
  --pink:#F472B6;
  --good:#34D399;
  --warn:#FBBF24;
  --bad:#F87171;

  /* 渐变 - 蓝紫青（匹配LOGO边框渐变） */
  --grad:linear-gradient(135deg,#60A5FA 0%,#8B5CF6 50%,#22D3EE 100%);
  --grad-soft:linear-gradient(135deg,rgba(96,165,250,.12),rgba(139,92,246,.10) 50%,rgba(34,211,238,.08));

  /* 阴影 - 深色风发光 */
  --sh:0 10px 40px rgba(0,0,0,.30);
  --shg:0 0 28px rgba(139,92,246,.20);
  --shg2:0 0 40px rgba(96,165,250,.15);

  /* 圆角 */
  --r:14px;
  --rs:8px;
  --rl:22px;
  --rxl:28px;

  /* 字体 */
  --sans:'Inter','Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
  --display:'Space Grotesk','Noto Sans SC',var(--sans);
  --mono:'JetBrains Mono','Space Grotesk',monospace;

  /* 容器 */
  --maxw:1240px;
  --gut:clamp(20px,4vw,56px);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scrollbar-gutter:stable}
body{
  background:var(--bg);
  color:var(--t1);
  font-family:var(--sans);
  font-weight:400;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
ul{list-style:none}
::selection{background:rgba(139,92,246,.3);color:var(--t1)}

/* ==========================================================================
   背景特效：深色网格 + 霓虹光晕
   ========================================================================== */
.bg-fx{position:fixed;inset:0;z-index:0;pointer-events:none}
.bg-fx::before{
  content:'';position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(139,92,246,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(139,92,246,.04) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 90%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 90%);
}
.bg-fx::after{
  content:'';position:absolute;inset:0;
  background:
    radial-gradient(ellipse 60% 50% at 15% 0%,rgba(96,165,250,.10),transparent 60%),
    radial-gradient(ellipse 50% 45% at 85% 25%,rgba(139,92,246,.08),transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%,rgba(34,211,238,.06),transparent 60%);
}

/* ==========================================================================
   布局
   ========================================================================== */
.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding-left:var(--gut);padding-right:var(--gut);width:100%;box-sizing:border-box}
section{position:relative;z-index:2}
.section{padding:clamp(64px,9vw,128px) 0}
.section.tight{padding:clamp(48px,6vw,80px) 0}

/* ==========================================================================
   排版
   ========================================================================== */
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;font-weight:500;
  color:var(--cyan);letter-spacing:.18em;text-transform:uppercase;
  margin-bottom:18px;
}
.kicker::before{content:'';width:24px;height:1px;background:linear-gradient(90deg,transparent,var(--cyan))}
.h-display{
  font-family:var(--display);
  font-size:clamp(34px,5.6vw,64px);
  font-weight:700;line-height:1.06;letter-spacing:-.025em;
}
.h-section{
  font-family:var(--display);
  font-size:clamp(26px,3.4vw,42px);
  font-weight:700;line-height:1.12;letter-spacing:-.02em;
}
.h-card{font-size:clamp(17px,1.5vw,21px);font-weight:600;letter-spacing:-.01em}
.lede{font-size:clamp(15px,1.3vw,18px);color:var(--t2);line-height:1.7;max-width:60ch}
.mono{font-family:var(--mono)}
.grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
}
.dim{color:var(--t2)}
.dimmer{color:var(--t3)}

/* ==========================================================================
   按钮
   ========================================================================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:14px;letter-spacing:.01em;
  padding:13px 24px;border-radius:var(--rs);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .25s,background .25s,border-color .25s;
  white-space:nowrap;
}
.btn-primary{
  background:var(--grad);color:#fff;
  box-shadow:0 6px 20px rgba(34,211,238,.30),inset 0 1px 0 rgba(255,255,255,.2);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(34,211,238,.38),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-ghost{
  background:var(--surface);color:var(--t1);border:1px solid var(--border2);
}
.btn-ghost:hover{background:var(--surface3);border-color:var(--border3);transform:translateY(-2px)}
.btn-lg{padding:16px 32px;font-size:15px}

/* ==========================================================================
   导航
   ========================================================================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent;
  background:rgba(15,23,42,.80);
  backdrop-filter:blur(20px) saturate(160%);
}
.nav.scrolled{
  background:rgba(15,23,42,.95);
  border-bottom-color:var(--border);
  box-shadow:0 4px 20px rgba(0,0,0,.20);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand-logo{height:60px;width:auto;display:block;filter:drop-shadow(0 0 14px rgba(34,211,238,.32)) drop-shadow(0 0 6px rgba(139,92,246,.22)) brightness(1.20) contrast(1.18) saturate(1.12)}
.footer-brand .brand-logo{height:72px}
.nav.scrolled .brand-logo{height:54px}
.footer-brand .brand{margin-bottom:16px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  font-size:14px;font-weight:500;color:var(--t2);
  padding:8px 14px;border-radius:var(--rs);transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--t1);background:var(--surface3)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--rs);align-items:center;justify-content:center;color:var(--t1)}
.nav-toggle svg{width:22px;height:22px}

/* 移动菜单 */
.mobile-menu{
  position:fixed;inset:68px 0 auto 0;z-index:99;
  background:rgba(15,23,42,.98);backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border);
  padding:16px var(--gut) 24px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:transform .3s,opacity .3s;
}
.mobile-menu.open{transform:none;opacity:1;pointer-events:auto}
.mobile-menu a{display:block;padding:14px 8px;font-size:16px;color:var(--t2);border-bottom:1px solid var(--border)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu .btn{margin-top:16px;width:100%}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{position:relative;padding:140px 0 80px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);align-items:center}
.hero-kicker{margin-bottom:24px}
.hero h1{margin-bottom:22px}
.hero .lede{margin-bottom:32px;font-size:clamp(16px,1.4vw,19px)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.hero-trust{display:flex;flex-wrap:wrap;gap:24px;align-items:center}
.hero-trust .item{display:flex;flex-direction:column;gap:2px}
.hero-trust .v{font-family:var(--display);font-weight:700;font-size:22px}
.hero-trust .lb{font-size:12px;color:var(--t3);letter-spacing:.04em}

/* Hero 视觉：真实邮件卡片堆叠 + 询盘预览 */
.hero-visual{position:relative;width:100%;min-width:0;max-width:680px;margin-left:auto;isolation:isolate}
.hero-mails{
  position:relative;
  min-height:500px;
  padding:20px;
}

/* 整体光晕背景 */
.mails-glow{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(ellipse 55% 50% at 60% 40%,rgba(34,211,238,.14),transparent 70%),
    radial-gradient(ellipse 40% 35% at 20% 70%,rgba(139,92,246,.14),transparent 70%);
  filter:blur(6px);
  pointer-events:none;
}

/* 邮件堆叠容器 */
.mail-stack{
  position:relative;z-index:2;
  width:100%;height:460px;
}

/* 通用邮件卡片 */
.mail-card{
  position:absolute;
  width:360px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:18px;
  padding:18px 20px 16px;
  box-shadow:
    0 30px 60px -20px rgba(0,0,0,.40),
    0 8px 24px rgba(0,0,0,.22),
    inset 0 1px 0 rgba(255,255,255,.04);
  display:flex;flex-direction:column;gap:10px;
  transition:transform .5s cubic-bezier(.2,.8,.2,1);
}
.mail-card:hover{transform:translateY(-4px) scale(1.01) !important}

/* 发件人顶栏 */
.mail-top{display:flex;align-items:center;gap:12px}
.mail-flag{font-size:28px;line-height:1;flex-shrink:0}
.mail-meta{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}
.mail-from{font-size:14px;font-weight:700;color:var(--t1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mail-email{font-size:11.5px;color:var(--t3);font-family:var(--mono);letter-spacing:.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mail-unread{
  width:10px;height:10px;border-radius:50%;flex-shrink:0;
  background:#22D3EE;box-shadow:0 0 0 4px rgba(34,211,238,.18),0 0 10px rgba(34,211,238,.6);
  animation:unreadPulse 2s ease-in-out infinite;
}
.mail-unread.dim{background:#60A5FA;box-shadow:0 0 0 4px rgba(96,165,250,.14);animation:none;opacity:.7}
@keyframes unreadPulse{50%{box-shadow:0 0 0 6px rgba(34,211,238,.10),0 0 14px rgba(34,211,238,.7)}}

/* 邮件主题 */
.mail-subj{
  font-size:15px;font-weight:700;color:var(--t1);
  line-height:1.4;
  /* 只显示1行，多余省略 */
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}

/* 邮件正文预览 */
.mail-body{display:flex;flex-direction:column;gap:8px}
.mail-body p{margin:0;font-size:12.5px;color:var(--t2);line-height:1.55}
.mail-body p strong{color:var(--cyan);font-weight:700}
.mail-hl{
  padding:8px 12px;
  background:var(--grad-soft);
  border:1px solid var(--border);
  border-radius:10px;
  font-size:12px;font-weight:600;color:var(--t1);
  letter-spacing:.005em;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}

/* 卡片底部 */
.mail-foot{display:flex;align-items:center;justify-content:space-between;margin-top:2px}
.mail-tag{
  display:inline-flex;align-items:center;gap:4px;
  padding:5px 10px;border-radius:999px;
  font-size:11px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
}
.tag-order{background:rgba(245,158,11,.12);color:#F59E0B;border-color:rgba(245,158,11,.25)}
.tag-sample{background:rgba(16,185,129,.12);color:#10B981;border-color:rgba(16,185,129,.25)}
.tag-oem{background:rgba(139,92,246,.12);color:#A78BFA;border-color:rgba(139,92,246,.25)}
.tag-wl{background:rgba(6,182,212,.12);color:#06B6D4;border-color:rgba(6,182,212,.25)}
.mail-time{font-size:11px;color:var(--t3);font-family:var(--mono)}

/* ======= 卡片定位 & 倾斜堆叠 ======= */
.mc-1{
  /* 美国：最上层，居中偏上，大 */
  top:18px;left:50%;
  transform:translateX(-50%) rotate(-1.2deg);
  width:370px;
  z-index:4;
  animation:cardFloat1 9s ease-in-out infinite;
}
.mc-2{
  /* 德国：中层，左侧 */
  top:108px;left:0;
  transform:rotate(-5deg);
  width:320px;
  z-index:3;
  animation:cardFloat2 10s ease-in-out infinite;
}
.mc-3{
  /* 日本：中层，右侧 */
  top:128px;right:0;
  transform:rotate(6deg);
  width:320px;
  z-index:2;
  animation:cardFloat3 11s ease-in-out infinite;
}
.mc-4{
  /* 巴西：最底层 */
  top:238px;left:18%;
  transform:rotate(2deg);
  width:300px;
  z-index:1;
  animation:cardFloat4 12s ease-in-out infinite;
  opacity:.92;
}

/* 堆叠浮动动画（错开节奏，有呼吸感） */
@keyframes cardFloat1{0%,100%{transform:translateX(-50%) rotate(-1.2deg) translateY(0)}50%{transform:translateX(-50%) rotate(-.6deg) translateY(-8px)}}
@keyframes cardFloat2{0%,100%{transform:rotate(-5deg) translateY(0)}50%{transform:rotate(-4deg) translateY(-6px)}}
@keyframes cardFloat3{0%,100%{transform:rotate(6deg) translateY(0)}50%{transform:rotate(5deg) translateY(-5px)}}
@keyframes cardFloat4{0%,100%{transform:rotate(2deg) translateY(0)}50%{transform:rotate(2.8deg) translateY(-4px)}}

/* ======= 数据徽章 ======= */
.mail-badge{
  position:absolute;z-index:5;
  background:rgba(15,23,42,.88);
  border:1px solid var(--border);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-radius:14px;
  padding:12px 16px;
  display:flex;flex-direction:column;gap:4px;
  box-shadow:0 12px 32px rgba(0,0,0,.32),0 0 0 1px rgba(34,211,238,.06) inset;
}
.mb-left{
  top:8px;left:-4px;
}
.mb-right{
  bottom:28px;right:-4px;
}
.mb-num{
  font-family:var(--display);
  font-size:28px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.02em;
}
.mb-sub{font-size:18px;font-weight:700;margin-left:2px}
.mb-lb{font-size:11.5px;color:var(--t3);font-weight:500;letter-spacing:.02em}
.mb-flag-row{display:flex;align-items:center;gap:6px;margin-bottom:4px}
.mb-flag-row span{font-size:20px;line-height:1}
.mb-more{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:10.5px;font-weight:700;font-family:var(--mono);
  background:rgba(34,211,238,.14);color:var(--cyan);
  border-radius:8px;padding:3px 7px;
  border:1px solid rgba(34,211,238,.22);
}

/* ======= 飞动小信封 ======= */
.fly-mail{
  position:absolute;z-index:6;
  font-size:22px;line-height:1;
  pointer-events:none;
  filter:drop-shadow(0 4px 10px rgba(0,0,0,.35));
}
.fm-1{
  top:38%;left:-8%;
  animation:fly1 8s ease-in-out infinite;
}
.fm-2{
  top:8%;right:-2%;
  animation:fly2 9s ease-in-out infinite;
  font-size:26px;
}
.fm-3{
  bottom:10%;left:2%;
  animation:fly3 10s ease-in-out infinite;
  font-size:20px;
}
@keyframes fly1{
  0%{transform:translate(0,0) rotate(-12deg);opacity:0}
  15%{opacity:1}
  60%{transform:translate(180px,-120px) rotate(10deg);opacity:1}
  100%{transform:translate(320px,-240px) rotate(22deg);opacity:0}
}
@keyframes fly2{
  0%{transform:translate(0,0) rotate(15deg);opacity:0}
  20%{opacity:1}
  55%{transform:translate(-140px,80px) rotate(-5deg);opacity:1}
  100%{transform:translate(-300px,200px) rotate(-20deg);opacity:0}
}
@keyframes fly3{
  0%{transform:translate(0,0) rotate(-8deg);opacity:0}
  25%{opacity:1}
  65%{transform:translate(240px,-80px) rotate(12deg);opacity:1}
  100%{transform:translate(420px,-200px) rotate(20deg);opacity:0}
}

/* ==========================================================================
   统计条
   ========================================================================== */
.stats-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:1px;background:var(--border);
  border:1px solid var(--border);border-radius:var(--rl);
  overflow:hidden;
}
.stat{background:var(--surface);padding:28px 24px;text-align:center;position:relative}
.stat::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);opacity:0;transition:opacity .3s}
.stat:hover::before{opacity:1}
.stat .v{font-family:var(--display);font-size:clamp(28px,3vw,40px);font-weight:700;line-height:1;letter-spacing:-.02em}
.stat .u{font-size:16px;font-weight:500;opacity:.65}
.stat .lb{font-size:12px;color:var(--t3);margin-top:8px;letter-spacing:.05em}

/* ==========================================================================
   卡片网格
   ========================================================================== */
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:24px 26px;
  transition:transform .3s cubic-bezier(.2,.8,.2,1),border-color .3s,background .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-3px);border-color:var(--border2);box-shadow:0 8px 28px rgba(0,0,0,.22)}
.card .ic{
  width:44px;height:44px;border-radius:12px;
  background:var(--grad-soft);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:16px;
}
.card h4{font-size:17px;font-weight:600;margin-bottom:8px;letter-spacing:-.01em}
.card p{font-size:13.5px;color:var(--t2);line-height:1.7}
.card.glow::after{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad);
  opacity:0;transition:opacity .3s;
}
.card.glow:hover::after{opacity:1}

/* 章节头 */
.sec-head{margin-bottom:clamp(36px,5vw,56px);max-width:780px}
.sec-head .lede{margin-top:18px}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto}
.sec-head.center .kicker::before{display:none}
.sec-head.center .kicker{justify-content:center}

/* ==========================================================================
   对比块
   ========================================================================== */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.compare-side{
  border-radius:var(--r);padding:28px 30px;
  border:1px solid var(--border);background:var(--surface);
}
.compare-side.bad{border-color:rgba(248,113,113,.25);background:rgba(248,113,113,.06)}
.compare-side.good{border-color:rgba(52,211,153,.25);background:rgba(52,211,153,.06)}
.compare-side h4{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:600;margin-bottom:18px}
.compare-side.bad h4{color:#F87171}
.compare-side.good h4{color:#34D399}
.compare-side ul li{display:flex;gap:10px;padding:9px 0;font-size:14px;color:var(--t2);border-bottom:1px solid var(--border)}
.compare-side ul li:last-child{border-bottom:0}
.compare-side ul li .mk{flex-shrink:0;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:2px}
.compare-side.bad .mk{background:rgba(248,113,113,.15);color:#F87171}
.compare-side.good .mk{background:rgba(52,211,153,.15);color:#34D399}

/* ==========================================================================
   平台截图展示（浏览器框）
   ========================================================================== */
.shot-tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;justify-content:center}
.shot-tab{
  padding:10px 18px;border-radius:30px;font-size:13.5px;font-weight:500;color:var(--t2);
  background:var(--surface);border:1px solid var(--border);transition:all .25s;
}
.shot-tab:hover{color:var(--t1);border-color:var(--border2)}
.shot-tab.active{color:#fff;background:var(--grad);border-color:transparent;box-shadow:0 6px 20px rgba(34,211,238,.25)}

.shot-pane{display:none;animation:fadeUp .5s ease both}
.shot-pane.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

.browser{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--rl);
  overflow:hidden;box-shadow:0 12px 40px rgba(0,0,0,.25);
  max-width:1080px;margin:0 auto;width:100%;box-sizing:border-box;
}
.browser-bar{
  display:flex;align-items:center;gap:8px;padding:14px 18px;
  background:var(--bg3);border-bottom:1px solid var(--border);
  overflow:hidden;flex-wrap:nowrap;
}
.browser-dot{width:11px;height:11px;border-radius:50%;background:var(--border2);flex-shrink:0}
.browser-dot:nth-child(1){background:#FF5F57}
.browser-dot:nth-child(2){background:#FEBC2E}
.browser-dot:nth-child(3){background:#28C840}
.browser-url{
  flex:1;min-width:0;margin-left:12px;padding:6px 14px;border-radius:20px;
  background:var(--surface);border:1px solid var(--border);
  font-family:var(--mono);font-size:11.5px;color:var(--t3);
  display:flex;align-items:center;gap:8px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.browser-url .lock{color:var(--good);flex-shrink:0}
.browser-body{padding:18px;background:var(--bg3)}
.browser-body img{border-radius:var(--rs);width:100%}

.shot-caption{
  max-width:760px;margin:24px auto 0;text-align:center;
  font-size:14px;color:var(--t2);line-height:1.7;
  overflow-wrap:break-word;word-break:break-word;
}
.shot-caption strong{color:var(--t1)}

/* ==========================================================================
   追踪时间线
   ========================================================================== */
.track-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.track-item{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:24px 22px;position:relative;transition:all .3s;
}
.track-item:hover{border-color:var(--border2);transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.track-item .num{
  position:absolute;top:18px;right:20px;
  font-family:var(--mono);font-size:12px;color:var(--t4);
}
.track-item .ic{font-size:24px;margin-bottom:14px}
.track-item h4{font-size:16px;font-weight:600;margin-bottom:8px}
.track-item p{font-size:13px;color:var(--t2);line-height:1.65}
.track-item.t1 .ic{color:var(--good)}
.track-item.t2 .ic{color:var(--cyan)}
.track-item.t3 .ic{color:var(--warn)}
.track-item.t4 .ic{color:var(--purple)}

/* ==========================================================================
   安全节点
   ========================================================================== */
.sec-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.sec-node{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:24px 18px;text-align:center;transition:all .3s;
}
.sec-node:hover{border-color:var(--border2);transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.sec-node .ic{
  width:48px;height:48px;border-radius:14px;margin:0 auto 14px;
  background:var(--grad-soft);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;font-size:22px;
}
.sec-node h5{font-size:14.5px;font-weight:600;margin-bottom:6px}
.sec-node p{font-size:12px;color:var(--t3);line-height:1.55}

/* ==========================================================================
   流程时间线
   ========================================================================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative}
.step{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--r);
  padding:24px 22px 22px;position:relative;
}
.step .n{
  width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;
  font-family:var(--display);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
  box-shadow:0 4px 12px rgba(34,211,238,.3);
}
.step h4{font-size:16px;font-weight:600;margin-bottom:8px}
.step p{font-size:13px;color:var(--t2);line-height:1.65;margin-bottom:12px}
.step .tag{
  display:inline-block;font-family:var(--mono);font-size:11px;
  color:var(--cyan);background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.2);
  padding:3px 10px;border-radius:20px;letter-spacing:.04em;
}

/* ==========================================================================
   发送案例 3 步
   ========================================================================== */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.flow-step{position:relative}
.flow-step .badge{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;color:var(--cyan);
  margin-bottom:12px;letter-spacing:.06em;
}
.flow-step .badge .d{width:22px;height:22px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:12px;box-shadow:0 4px 12px rgba(34,211,238,.3)}
.flow-step h4{font-size:16px;font-weight:600;margin-bottom:10px;line-height:1.4}
.flow-step .shot{
  border-radius:var(--r);overflow:hidden;border:1px solid var(--border);
  box-shadow:0 8px 28px rgba(0,0,0,.18);background:var(--surface);
}
.flow-step .shot img{width:100%}

/* ==========================================================================
   寻盘案例画廊
   ========================================================================== */
.inq-tabs{
  display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px;justify-content:center;
}
.inq-tab{
  padding:8px 16px;border-radius:30px;font-size:13px;font-weight:500;color:var(--t2);
  background:var(--surface);border:1px solid var(--border);transition:all .25s;
  cursor:pointer;white-space:nowrap;
}
.inq-tab:hover{color:var(--t1);border-color:var(--border2)}
.inq-tab.active{color:#fff;background:var(--grad);border-color:transparent;box-shadow:0 6px 20px rgba(34,211,238,.25)}
.inq-tab .cnt{font-size:11px;opacity:.7;margin-left:2px}
.inq-more{text-align:center;margin-top:24px}
.inq-more .btn{cursor:pointer}

.case-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.case-card{
  position:relative;border-radius:var(--r);overflow:hidden;
  border:1px solid var(--border);background:var(--surface);
  transition:all .35s cubic-bezier(.2,.8,.2,1);cursor:pointer;
}
.case-card:hover{transform:translateY(-4px);border-color:var(--border2);box-shadow:0 12px 32px rgba(0,0,0,.22)}
.case-card .thumb{aspect-ratio:3/4;overflow:hidden;background:var(--bg3);position:relative}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;object-position:top;transition:transform .5s}
.case-card:hover .thumb img{transform:scale(1.04)}
.case-card .meta{padding:12px 14px 14px}
.case-card .meta .ind{font-size:13.5px;font-weight:600;color:var(--t1)}
.case-card .meta .sub{font-size:11px;color:var(--t3);margin-top:3px;font-family:var(--mono);letter-spacing:.04em}

/* Lightbox */
.lightbox{
  position:fixed;inset:0;z-index:200;background:rgba(15,23,42,.85);backdrop-filter:blur(16px);
  display:flex;align-items:center;justify-content:center;padding:32px;
  opacity:0;pointer-events:none;transition:opacity .3s;
  flex-direction:column;gap:14px;
}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:85vw;max-height:82vh;border-radius:var(--rs);box-shadow:0 20px 60px rgba(0,0,0,.3);object-fit:contain}
.lightbox .lb-date{
  font-family:var(--mono);font-size:13px;font-weight:600;
  color:#fff;letter-spacing:.04em;
  padding:6px 16px;border-radius:20px;
  background:var(--grad);
  box-shadow:0 6px 20px rgba(34,211,238,.25);
}
.lightbox .close{position:absolute;top:24px;right:28px;width:44px;height:44px;border-radius:50%;background:var(--surface);border:1px solid var(--border);font-size:22px;color:var(--t1);cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10}
.lightbox .close:hover{background:var(--surface3)}
.lightbox .lb-nav{
  position:absolute;top:50%;transform:translateY(-50%);
  width:52px;height:52px;border-radius:50%;
  background:var(--surface);border:1px solid var(--border);
  font-size:32px;color:var(--t1);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  z-index:10;transition:all .2s;line-height:1;
}
.lightbox .lb-nav:hover{background:var(--surface3);transform:translateY(-50%) scale(1.08)}
.lightbox .lb-prev{left:24px}
.lightbox .lb-next{right:24px}
.lightbox .lb-counter{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  font-family:var(--mono);font-size:13px;color:#fff;
  padding:6px 14px;border-radius:16px;
  background:rgba(15,23,42,.7);border:1px solid rgba(255,255,255,.2);
  z-index:10;
}

/* ==========================================================================
   报价
   ========================================================================== */
.price-card{
  max-width:760px;margin:0 auto;
  background:var(--surface);
  border:1px solid var(--border);border-radius:var(--rxl);
  padding:clamp(28px,3vw,40px);position:relative;overflow:hidden;
  box-shadow:0 12px 40px rgba(0,0,0,.22);
}
.price-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.price-head{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:16px;margin-bottom:20px}
.price-head h3{font-size:clamp(20px,2vw,24px);font-weight:700;letter-spacing:-.01em}
.price-head .sub{font-size:12.5px;color:var(--t3);margin-top:6px;font-family:var(--mono)}
.price-amt{font-family:var(--display);font-size:clamp(36px,4.5vw,52px);font-weight:700;line-height:1;letter-spacing:-.02em}
.price-amt .yr{font-size:18px;font-weight:500;color:var(--t2);margin-left:4px}
.price-include{
  margin-top:20px;padding-top:20px;border-top:1px solid var(--border);
  display:grid;grid-template-columns:1fr 1fr;gap:8px 24px;
}
.price-include li{display:flex;gap:10px;font-size:13.5px;color:var(--t2);padding:5px 0}
.price-include li .ck{flex-shrink:0;color:var(--good);font-size:14px;margin-top:3px}

/* ==========================================================================
   FAQ 手风琴
   ========================================================================== */
.faq{max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:var(--r);margin-bottom:10px;background:var(--surface);overflow:hidden;transition:border-color .25s,background .25s}
.faq-item:hover{border-color:var(--border2)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 24px;font-size:15px;font-weight:500;cursor:pointer;width:100%;text-align:left}
.faq-q .chev{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;color:var(--t3);transition:transform .3s}
.faq-item.open .faq-q .chev{transform:rotate(45deg);color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--t2);line-height:1.75}
.faq-a-inner ul{margin:10px 0;padding-left:4px}
.faq-a-inner li{padding:4px 0}
.faq-a-inner strong{color:var(--t1)}

/* 敏感词标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.tag-cloud span{font-family:var(--mono);font-size:11px;color:var(--t3);background:var(--bg3);border:1px solid var(--border);padding:4px 10px;border-radius:20px}

/* ==========================================================================
   联系
   ========================================================================== */
.contact-card{
  max-width:880px;margin:0 auto;
  background:var(--surface);
  border:1px solid var(--border);border-radius:var(--rxl);
  padding:clamp(28px,3.5vw,44px);position:relative;overflow:hidden;
  box-shadow:0 12px 40px rgba(0,0,0,.18);
}
.contact-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:24px}
.contact-item{display:flex;align-items:flex-start;gap:12px}
.contact-item .ic{flex-shrink:0;width:42px;height:42px;border-radius:12px;background:var(--grad-soft);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:18px}
.contact-item .lb{font-size:11px;color:var(--t3);letter-spacing:.06em;text-transform:uppercase;margin-bottom:3px}
.contact-item .v{font-size:15px;font-weight:600;color:var(--t1)}
.contact-item .v.mono{font-family:var(--mono);font-size:14px}

/* ==========================================================================
   CTA 横幅
   ========================================================================== */
.cta-band{
  background:linear-gradient(135deg,rgba(34,211,238,.10),rgba(96,165,250,.08),rgba(139,92,246,.06));
  border:1px solid var(--border);border-radius:var(--rxl);
  padding:clamp(32px,4vw,52px);text-align:center;position:relative;overflow:hidden;
}
.cta-band::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
.cta-band h2{margin-bottom:14px}
.cta-band .lede{margin:0 auto 28px}
.cta-band .btns{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer{border-top:1px solid var(--border);padding:56px 0 36px;background:var(--surface)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:32px;margin-bottom:40px;align-items:start}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:13px;color:var(--t3);line-height:1.7;max-width:34ch}
.footer-col h5{font-size:13px;font-weight:600;color:var(--t2);margin-bottom:14px;letter-spacing:.04em}
.footer-col a{display:block;font-size:13px;color:var(--t3);padding:5px 0;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-qr{text-align:left}
.footer-qr-card{
  display:flex;align-items:center;gap:16px;
  padding:14px;border-radius:14px;
  background:linear-gradient(145deg,rgba(34,211,238,.06),rgba(139,92,246,.04));
  border:1px solid var(--border);
}
.fqc-qr{
  width:140px;height:140px;flex-shrink:0;
  background:#fff;border-radius:10px;
  padding:8px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px rgba(0,0,0,.18);
  position:relative;
}
.fqc-qr img{width:100%;height:100%;display:block;border-radius:4px}
.fqc-info{display:flex;flex-direction:column;gap:6px;min-width:0}
.fqc-name{font-size:14px;font-weight:700;color:var(--t1)}
.fqc-phone{
  font-family:var(--mono);font-size:16px;font-weight:600;
  color:var(--cyan);letter-spacing:.02em;
}
.fqc-tip{font-size:11.5px;color:var(--t3);margin:0}
.fqc-tip::before{content:'💬 '}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:24px;border-top:1px solid var(--border);font-size:12px;color:var(--t4)}
.footer-bottom .mono{font-family:var(--mono);letter-spacing:.04em}

/* ==========================================================================
   滚动显现
   ========================================================================== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}
.reveal.d5{transition-delay:.40s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:48px}
  .hero-visual{max-width:580px;margin:0 auto;order:-1}
  .hero-mails{min-height:540px;padding:14px 10px}
  .mail-stack{height:500px}
  .mail-card{width:300px !important;padding:14px 16px 12px}
  .mc-1{width:310px !important;top:10px}
  .mc-2{top:92px;left:0}
  .mc-3{top:112px;right:0}
  .mc-4{top:215px;left:10%}
  .mb-left{top:0;left:0}
  .mb-right{bottom:14px;right:0}
  .mb-num{font-size:24px}
  .mb-lb{font-size:11px}
  .mb-flag-row span{font-size:18px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .g4{grid-template-columns:repeat(2,1fr)}
  .track-grid{grid-template-columns:repeat(2,1fr)}
  .sec-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:24px}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
  .footer-qr{grid-column:1/-1;text-align:left}
  .footer-qr-card{gap:14px}
  .fqc-qr{width:120px;height:120px}
  .price-include{grid-template-columns:1fr}
  .nav-links{display:none}
  .nav-toggle{display:flex}
}
@media (max-width:560px){
  :root{--gut:18px}
  .stats-bar{grid-template-columns:1fr 1fr;border-radius:var(--r)}
  .stat{padding:20px 14px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .track-grid{grid-template-columns:1fr}
  .sec-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .case-gallery{grid-template-columns:repeat(2,1fr);gap:10px}
  .case-card .meta{padding:10px 12px}
  .case-card .meta .ind{font-size:12.5px}
  .hero{padding:120px 0 60px}
  .hero-mails{min-height:520px;padding:10px 0}
  .mail-stack{height:480px}
  .mail-card{padding:12px 14px 10px;gap:8px}
  .mail-flag{font-size:24px}
  .mail-from{font-size:12.5px}
  .mail-email{font-size:10.5px}
  .mail-subj{font-size:13.5px}
  .mail-body p{font-size:11.5px}
  .mail-hl{font-size:11px;padding:6px 10px}
  .mc-1{width:88% !important;top:0}
  .mc-2{width:78%;top:78px;left:0}
  .mc-3{width:78%;top:96px;right:0}
  .mc-4{width:74%;top:185px;left:6%}
  .mail-badge{padding:10px 12px}
  .mb-num{font-size:22px}
  .mb-sub{font-size:14px}
  .mb-lb{font-size:10.5px}
  .mb-flag-row span{font-size:16px}
  .mb-more{font-size:9.5px;padding:2px 5px}
  .mail-tag{font-size:10px;padding:4px 8px}
  .fly-mail{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand{grid-column:1}
  .footer-qr{grid-column:1}
  .footer-qr-card{padding:12px;gap:12px;margin-top:24px}
  .fqc-qr{width:100px;height:100px}
  .fqc-name{font-size:13px}
  .fqc-phone{font-size:14px}
  .price-head{flex-direction:column}
}

/* ==========================================================================
   子页面通用样式（多页面架构）
   ========================================================================== */

/* 子页面头部横幅 */
.page-hero{
  padding:120px 0 48px;
  position:relative;
  border-bottom:1px solid var(--border);
  background:radial-gradient(ellipse 60% 80% at 50% 0%,rgba(139,92,246,.10),transparent 70%);
}
.page-hero .kicker{margin-bottom:14px}
.page-hero h1{margin-bottom:14px;font-size:clamp(28px,4vw,46px)}
.page-hero .lede{max-width:70ch}

/* 面包屑 */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:12.5px;color:var(--t3);margin-bottom:24px;
  font-family:var(--mono);letter-spacing:.04em;
}
.breadcrumb a{color:var(--t2);transition:color .2s}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:var(--t4);margin:0 2px}
.breadcrumb .current{color:var(--t1)}

/* 子页面主内容区 */
.page-main{padding:56px 0 96px}
.page-main.tight{padding:40px 0 72px}

/* ==========================================================================
   联系我们 页面 - 二维码展示（紧凑左右布局）
   ========================================================================== */
/* 精英二维码卡片设计 */
.qr-showcase{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:32px;margin-top:0;
}
.qr-card-elite{
  position:relative;
  border-radius:20px;
  background:var(--surface);
  border:1px solid var(--border);
  overflow:hidden;
  transition:transform .4s cubic-bezier(.2,.8,.2,1),border-color .4s,box-shadow .4s;
}
.qr-card-elite:hover{
  transform:translateY(-6px);
  border-color:var(--qr-color);
  box-shadow:0 16px 48px rgba(15,23,42,.10);
}
.qr-glow{
  position:absolute;
  top:-50%;left:-50%;width:200%;height:200%;
  background:radial-gradient(circle at 30% 20%,var(--qr-color) 0%,transparent 40%);
  opacity:.08;pointer-events:none;
  transition:opacity .4s;
}
.qr-card-elite:hover .qr-glow{opacity:.12}
.qr-card-inner{
  position:relative;z-index:1;
  padding:28px 24px 22px;
}
.qr-platform{
  display:flex;align-items:center;gap:10px;
  margin-bottom:16px;
}
.qr-platform-icon{
  width:36px;height:36px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--qr-color);
  background:linear-gradient(135deg,color-mix(in srgb,var(--qr-color) 20%,transparent),color-mix(in srgb,var(--qr-color2) 20%,transparent));
  border:1px solid color-mix(in srgb,var(--qr-color) 40%,transparent);
}
.qr-platform-name{
  font-size:14px;font-weight:600;
  color:var(--qr-color);
  letter-spacing:.02em;
}
.qr-title{
  font-size:16px;font-weight:700;color:var(--t1);
  margin:0 0 18px;letter-spacing:-.01em;
}
.qr-qr-wrapper{
  position:relative;
  width:fit-content;margin:0 auto 20px;
}
.qr-qr-frame{
  padding:12px;background:var(--surface);border-radius:14px;
  box-shadow:
    0 8px 32px rgba(15,23,42,.12),
    0 0 0 1px rgba(0,0,0,.10);
  position:relative;
}
.qr-img-elite{
  width:220px;height:220px;display:block;
  user-select:none;-webkit-user-drag:none;
  border-radius:6px;
}
.qr-qr-corners .corner{
  position:absolute;width:24px;height:24px;
  border-color:var(--qr-color);
  transition:transform .3s,opacity .3s;
}
.qr-qr-corners .corner.tl{top:-4px;left:-4px;border-top:3px solid;border-left:3px solid;border-top-left-radius:10px}
.qr-qr-corners .corner.tr{top:-4px;right:-4px;border-top:3px solid;border-right:3px solid;border-top-right-radius:10px}
.qr-qr-corners .corner.bl{bottom:-4px;left:-4px;border-bottom:3px solid;border-left:3px solid;border-bottom-left-radius:10px}
.qr-qr-corners .corner.br{bottom:-4px;right:-4px;border-bottom:3px solid;border-right:3px solid;border-bottom-right-radius:10px}
.qr-card-elite:hover .qr-qr-corners .corner{
  transform:scale(1.2);
}
.qr-info-elite{
  display:flex;flex-direction:column;gap:12px;
  padding-top:16px;border-top:1px solid var(--border);
}
.qr-contact-line{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;
  background:var(--bg3);
  border-radius:10px;
  border:1px solid var(--border);
}
.qr-contact-label{
  font-size:12px;font-weight:500;
  color:var(--qr-color);
  padding:2px 8px;border-radius:6px;
  background:color-mix(in srgb,var(--qr-color) 12%,transparent);
  white-space:nowrap;
}
.qr-contact-value{
  font-size:15px;font-weight:700;color:var(--t1);
  letter-spacing:.02em;
}
.qr-tip-elite{
  display:flex;align-items:center;gap:6px;
  font-size:12px;color:var(--t3);
  padding:8px 12px;
  background:var(--bg3);
  border-radius:8px;
}
.qr-tip-elite .tip-icon{font-size:14px}

/* 联系方式迷你卡片网格 */
.contact-mini-grid{
  display:grid;gap:14px;
  grid-template-columns:repeat(3,1fr);
}
.contact-mini{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:18px 18px 16px;
  transition:transform .3s,border-color .3s,background .3s,box-shadow .3s;
  position:relative;overflow:hidden;
}
.contact-mini::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .3s;
}
.contact-mini:hover{
  transform:translateY(-3px);
  border-color:var(--border2);
  box-shadow:0 8px 24px rgba(0,0,0,.18);
}
.contact-mini:hover::before{opacity:1}
.cm-ic{
  width:42px;height:42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:12px;
  background:var(--grad-soft);border:1px solid var(--border);
}
.cm-ic-phone{background:linear-gradient(135deg,rgba(34,211,238,.18),rgba(59,130,246,.18));color:#22d3ee}
.cm-ic-user{background:linear-gradient(135deg,rgba(168,85,247,.18),rgba(236,72,153,.18));color:#c084fc}
.cm-ic-web{background:linear-gradient(135deg,rgba(16,185,129,.18),rgba(34,211,238,.18));color:#2dd4bf}
.cm-ic-co{background:linear-gradient(135deg,rgba(245,158,11,.18),rgba(236,72,153,.18));color:#fbbf24}
.cm-ic-mail{background:linear-gradient(135deg,rgba(236,72,153,.18),rgba(168,85,247,.18));color:#f472b6}
.cm-ic-chat{background:linear-gradient(135deg,rgba(59,130,246,.18),rgba(34,211,238,.18));color:#60a5fa}
.cm-label{
  font-size:11px;color:var(--t3);letter-spacing:.06em;
  text-transform:uppercase;margin-bottom:4px;font-weight:500;
}
.cm-val{
  font-size:16px;font-weight:700;color:var(--t1);
  margin-bottom:3px;letter-spacing:-.005em;
  word-break:break-all;
}
.cm-sub{
  font-size:12px;color:var(--t2);line-height:1.4;
}

/* 响应式 */
@media (max-width:960px){
  .qr-showcase{grid-template-columns:1fr;gap:24px}
  .qr-card-inner{padding:24px 20px}
  .qr-img-elite{width:200px;height:200px}
  .contact-mini-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .qr-card-inner{padding:20px 16px}
  .qr-img-elite{width:220px;height:220px}
  .qr-qr-corners .corner{width:20px;height:20px}
  .contact-mini-grid{grid-template-columns:1fr}
  .qr-contact-value{font-size:14px}
}

/* ==========================================================================
   联系我们 页面（旧版样式保留兼容）
   ========================================================================== */
.contact-banner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:28px 32px;
  background:
    radial-gradient(120% 180% at 0% 0%,rgba(59,130,246,.22),transparent 60%),
    radial-gradient(120% 180% at 100% 100%,rgba(168,85,247,.22),transparent 60%),
    var(--surface);
  border:1px solid var(--border2);
  border-radius:var(--r);
  backdrop-filter:blur(14px);
  position:relative;overflow:hidden;
}
.contact-banner::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,rgba(59,130,246,.08),rgba(168,85,247,.08));
  pointer-events:none;
}
.cb-main{display:flex;align-items:center;gap:20px;position:relative;z-index:1}
.cb-ic{
  width:56px;height:56px;border-radius:16px;
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  font-size:28px;
  box-shadow:0 10px 30px rgba(59,130,246,.35);
  flex-shrink:0;
}
.cb-text h3{
  font-size:20px;font-weight:600;color:var(--t1);
  margin-bottom:4px;letter-spacing:-.01em;
}
.cb-text p{font-size:14px;color:var(--t2);line-height:1.6}
.cb-actions{display:flex;gap:12px;position:relative;z-index:1;flex-shrink:0}

.btn-ghost{
  background:transparent;border:1px solid var(--border2);color:var(--t1);
}
.btn-ghost:hover{background:var(--surface2);border-color:var(--cyan);color:var(--cyan)}

/* 联系卡片网格（仅 contact 页面） */
.contact-grid-v2{
  display:grid;gap:20px;
  grid-template-columns:repeat(3,1fr);
  margin-top:28px;
}
.contact-card-v2{
  position:relative;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--r);
  padding:24px 22px 20px;
  backdrop-filter:blur(12px);
  transition:transform .3s cubic-bezier(.2,.8,.2,1),border-color .3s,background .3s,box-shadow .3s;
  display:block;color:inherit;text-decoration:none;overflow:hidden;
}
.contact-card-v2::before{
  content:'';position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--grad);opacity:0;transition:opacity .3s;
}
.contact-card-v2:hover{
  transform:translateY(-4px);
  border-color:var(--border2);
  background:var(--surface2);
  box-shadow:var(--sh);
}
.contact-card-v2:hover::before{opacity:1}
.cc-ic{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;margin-bottom:16px;
  background:var(--grad-soft);
  border:1px solid var(--border2);
  position:relative;z-index:1;
}
.cc-ic-phone{background:linear-gradient(135deg,rgba(34,211,238,.22),rgba(59,130,246,.22));color:#22d3ee}
.cc-ic-qq{background:linear-gradient(135deg,rgba(59,130,246,.22),rgba(168,85,247,.22));color:#60a5fa}
.cc-ic-user{background:linear-gradient(135deg,rgba(168,85,247,.22),rgba(236,72,153,.22));color:#c084fc}
.cc-ic-web{background:linear-gradient(135deg,rgba(16,185,129,.22),rgba(34,211,238,.22));color:#2dd4bf}
.cc-ic-co{background:linear-gradient(135deg,rgba(245,158,11,.22),rgba(236,72,153,.22));color:#fbbf24}
.cc-ic-mail{background:linear-gradient(135deg,rgba(236,72,153,.22),rgba(168,85,247,.22));color:#f472b6}
.cc-tag{
  font-size:12px;color:var(--t3);letter-spacing:.05em;
  text-transform:uppercase;margin-bottom:8px;font-weight:500;
}
.cc-val{
  font-size:22px;font-weight:700;color:var(--t1);
  letter-spacing:-.01em;margin-bottom:10px;line-height:1.2;
  word-break:break-all;
}
.cc-desc{
  font-size:13px;color:var(--t2);line-height:1.6;
  padding-top:12px;border-top:1px dashed var(--border);
}
.cc-foot{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:12px;border-top:1px dashed var(--border);
  font-size:12px;color:var(--t3);
}
.cc-arrow{color:var(--cyan);font-size:16px;transition:transform .3s}
.contact-card:hover .cc-arrow{transform:translateX(4px)}

/* 响应式 */
@media (max-width:960px){
  .contact-grid-v2{grid-template-columns:repeat(2,1fr)}
  .contact-banner{flex-direction:column;align-items:flex-start;gap:20px}
  .cb-actions{width:100%}
}
@media (max-width:560px){
  .contact-grid-v2{grid-template-columns:1fr}
  .cb-text h3{font-size:17px}
  .cb-text p{font-size:13px}
  .contact-banner{padding:22px 20px}
  .cb-main{gap:14px}
  .cb-ic{width:46px;height:46px;font-size:22px;border-radius:12px}
  .cc-val{font-size:20px}
}

/* ==========================================================================
   全局视觉升级 - SVG图标、动画、交互
   ========================================================================== */

/* --- 通用SVG图标样式 --- */
.svg-icon{
  width:24px;height:24px;display:inline-block;vertical-align:middle;
  fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .3s,filter .3s;
}
.svg-icon.sm{width:18px;height:18px}
.svg-icon.lg{width:32px;height:32px}
.svg-icon.xl{width:40px;height:40px}

/* --- 导航栏激活指示器 --- */
.nav-links a{position:relative}
.nav-links a.active::after{
  content:'';position:absolute;bottom:-6px;left:10%;right:10%;height:2px;
  background:var(--grad);border-radius:2px;
  animation:navIndicator .4s cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes navIndicator{
  from{transform:scaleX(0);opacity:0}
  to{transform:scaleX(1);opacity:1}
}
.nav-links a::after{
  content:'';position:absolute;bottom:-6px;left:10%;right:10%;height:2px;
  background:var(--grad);border-radius:2px;
  transform:scaleX(0);transform-origin:left;opacity:0;
  transition:transform .3s,opacity .3s;
}
.nav-links a:hover::after{transform:scaleX(1);opacity:.6}

/* --- 页面顶部进度条 --- */
.page-progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:9999;
  background:linear-gradient(90deg,var(--cyan),var(--purple),var(--pink));
  transform-origin:left;transform:scaleX(0);
  box-shadow:0 0 12px rgba(34,211,238,.5);
  pointer-events:none;
}

/* --- 回到顶部按钮 --- */
.back-to-top{
  position:fixed;bottom:28px;right:28px;z-index:998;
  width:48px;height:48px;border-radius:50%;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;border:none;
  box-shadow:0 8px 24px rgba(34,211,238,.35);
  opacity:0;transform:translateY(20px);pointer-events:none;
  transition:opacity .3s,transform .3s,box-shadow .3s;
}
.back-to-top.show{opacity:1;transform:translateY(0);pointer-events:auto}
.back-to-top:hover{box-shadow:0 12px 32px rgba(34,211,238,.5);transform:translateY(-2px)}
.back-to-top svg{width:22px;height:22px}

/* --- 滚动指示箭头 --- */
.scroll-indicator{
  position:absolute;bottom:32px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:6px;
  color:var(--t3);font-size:12px;letter-spacing:.08em;
  animation:scrollBounce 2s ease-in-out infinite;
}
.scroll-indicator svg{width:20px;height:20px}
@keyframes scrollBounce{
  0%,100%{transform:translateX(-50%) translateY(0)}
  50%{transform:translateX(-50%) translateY(8px)}
}

/* --- 卡片增强悬停效果 --- */
.enhanced-card{
  position:relative;overflow:hidden;
  transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s,border-color .4s;
}
.enhanced-card::after{
  content:'';position:absolute;inset:0;border-radius:inherit;
  padding:1px;background:linear-gradient(135deg,var(--cyan),var(--purple),var(--pink));
  -webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
  opacity:0;transition:opacity .4s;pointer-events:none;
}
.enhanced-card:hover{
  transform:translateY(-6px);
  box-shadow:0 20px 60px rgba(0,0,0,.25);
}
.enhanced-card:hover::after{opacity:1}
.enhanced-card:hover .card-icon-wrap{
  transform:rotateY(-8deg) rotateX(6deg) scale(1.05);
}

/* --- 卡片图标容器升级 --- */
.card-icon-wrap{
  transition:transform .4s cubic-bezier(.2,.8,.2,1),box-shadow .4s;
  position:relative;
}
.card-icon-wrap::before{
  content:'';position:absolute;inset:-8px;border-radius:inherit;
  background:var(--grad);opacity:0;filter:blur(20px);
  transition:opacity .4s;z-index:-1;
}
.enhanced-card:hover .card-icon-wrap::before{opacity:.35}

/* --- 统计条数字滚动效果 --- */
.stat-num{
  font-family:var(--display);font-weight:700;
  background:linear-gradient(135deg,#fff 0%,var(--cyan) 50%,var(--purple) 100%);
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  transition:filter .3s;
}
.stat:hover .stat-num{filter:brightness(1.1)}

/* --- 按钮涟漪效果 --- */
.btn.ripple{position:relative;overflow:hidden}
.btn.ripple::before{
  content:'';position:absolute;border-radius:50%;
  background:rgba(255,255,255,.4);
  transform:scale(0);animation:rippleEffect .6s linear;
  pointer-events:none;
}
@keyframes rippleEffect{
  to{transform:scale(4);opacity:0}
}

/* --- 按钮呼吸光晕 --- */
.btn-primary.pulse-glow{
  animation:btnPulse 3s ease-in-out infinite;
}
@keyframes btnPulse{
  0%,100%{box-shadow:0 6px 20px rgba(34,211,238,.3)}
  50%{box-shadow:0 6px 30px rgba(34,211,238,.55)}
}

/* --- 文字渐变增强 --- */
.gradient-text{
  background:linear-gradient(135deg,var(--cyan),var(--purple),var(--pink));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}
.gradient-text-subtle{
  background:linear-gradient(135deg,var(--t2),var(--cyan));
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* --- 章节装饰分隔线 --- */
.section-divider{
  display:flex;align-items:center;justify-content:center;gap:16px;
  margin:40px 0;
}
.section-divider .sd-line{
  height:1px;flex:1;max-width:120px;
  background:linear-gradient(90deg,transparent,var(--border2),transparent);
}
.section-divider .sd-icon{
  width:36px;height:36px;border-radius:50%;
  background:var(--surface);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  color:var(--cyan);
}
.section-divider .sd-icon svg{width:16px;height:16px}

/* --- 数字强调卡片 --- */
.feature-icon-box{
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:20px;
  background:var(--grad-soft);
  border:1px solid var(--border);
  position:relative;overflow:hidden;
}
.feature-icon-box::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(135deg,transparent 40%,rgba(255,255,255,.1) 50%,transparent 60%);
  transform:translateX(-100%);transition:transform .6s;
}
.enhanced-card:hover .feature-icon-box::after{transform:translateX(100%)}
.feature-icon-box svg{color:var(--cyan);width:28px;height:28px}

/* --- 数据指标卡片升级 --- */
.metric-card{
  position:relative;overflow:hidden;
  transition:transform .3s,box-shadow .3s;
}
.metric-card::before{
  content:'';position:absolute;top:0;left:0;width:4px;height:100%;
  background:var(--grad);opacity:0;transition:opacity .3s;
}
.metric-card:hover::before{opacity:1}
.metric-card:hover{transform:translateY(-4px);box-shadow:0 16px 48px rgba(0,0,0,.2)}

/* --- 页脚社交图标升级 --- */
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{
  width:40px;height:40px;border-radius:50%;
  background:var(--surface3);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  transition:all .3s;
}
.footer-social a:hover{
  background:var(--grad);border-color:transparent;
  transform:translateY(-3px);box-shadow:0 6px 20px rgba(34,211,238,.3);
}
.footer-social a svg{width:18px;height:18px;color:var(--t2);transition:color .3s}
.footer-social a:hover svg{color:#fff}

/* --- 空状态样式 --- */
.empty-state{
  text-align:center;padding:40px 20px;
  color:var(--t3);
}
.empty-state .es-icon{
  width:80px;height:80px;margin:0 auto 16px;
  border-radius:50%;background:var(--bg3);
  display:flex;align-items:center;justify-content:center;
  color:var(--t4);
}
.empty-state .es-icon svg{width:36px;height:36px}
.empty-state p{font-size:14px}

/* --- 骨架屏加载效果 --- */
@keyframes shimmer{
  0%{background-position:-200% 0}
  100%{background-position:200% 0}
}
.skeleton{
  background:linear-gradient(90deg,var(--bg3) 25%,var(--surface3) 50%,var(--bg3) 75%);
  background-size:200% 100%;
  animation:shimmer 1.5s infinite;
  border-radius:var(--rs);
}

/* --- 标签/徽章升级 --- */
.badge-enhanced{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:20px;
  background:var(--grad-soft);border:1px solid var(--border);
  font-size:12px;font-weight:500;color:var(--cyan);
  transition:all .3s;
}
.badge-enhanced:hover{border-color:var(--cyan);box-shadow:0 4px 12px rgba(34,211,238,.2)}
.badge-enhanced svg{width:12px;height:12px}

/* --- 微交互:卡片出现动画 --- */
@keyframes cardEnter{
  from{opacity:0;transform:translateY(24px) scale(.98)}
  to{opacity:1;transform:translateY(0) scale(1)}
}
.card-enter{animation:cardEnter .6s cubic-bezier(.2,.8,.2,1) both}

/* --- 发光效果工具类 --- */
.glow-cyan{box-shadow:0 0 20px rgba(34,211,238,.3)}
.glow-purple{box-shadow:0 0 20px rgba(168,85,247,.3)}
.glow-strong{box-shadow:0 0 40px rgba(34,211,238,.25)}

/* --- 焦点可见性 --- */
:focus-visible{
  outline:2px solid var(--cyan);outline-offset:2px;
  border-radius:6px;
}

/* --- 选择文本样式 --- */
::selection{
  background:rgba(34,211,238,.25);color:var(--t1);
}

/* --- 滚动条美化 --- */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg3)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--t4)}

/* --- 响应式:回到顶部按钮 --- */
@media (max-width:560px){
  .back-to-top{bottom:20px;right:20px;width:42px;height:42px}
  .back-to-top svg{width:18px;height:18px}
}
.contact-card-v2:hover .cc-arrow{transform:translateX(4px)}

/* 内容段落卡片 */
.prose{max-width:780px;line-height:1.8;color:var(--t2)}
.prose h2{font-family:var(--display);color:var(--t1);font-size:24px;margin:36px 0 14px;letter-spacing:-.015em}
.prose h3{font-family:var(--display);color:var(--t1);font-size:18px;margin:24px 0 10px;font-weight:600}
.prose p{margin-bottom:14px}
.prose ul{margin:12px 0 18px;padding-left:4px}
.prose li{margin-bottom:8px;padding-left:22px;position:relative}
.prose li::before{content:'▸';position:absolute;left:0;color:var(--cyan)}
.prose strong{color:var(--t1);font-weight:600}
.prose code{font-family:var(--mono);background:var(--surface2);padding:2px 8px;border-radius:4px;font-size:.92em;color:var(--cyan)}

/* CTA底部带 */
.cta-section{padding:56px 0 80px}

/* 案例 页面布局 */
.cases-layout{display:grid;grid-template-columns:240px 1fr;gap:32px;align-items:flex-start}
.cases-sidebar{
  position:sticky;top:96px;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r);padding:14px;backdrop-filter:blur(12px);
}
.cases-sidebar h5{
  font-size:11px;color:var(--t3);letter-spacing:.12em;text-transform:uppercase;
  margin:10px 12px 8px;font-family:var(--mono);
}
.cases-cat{
  display:flex;justify-content:space-between;align-items:center;
  width:100%;padding:10px 12px;border-radius:var(--rs);
  color:var(--t2);font-size:14px;cursor:pointer;transition:all .2s;
  background:transparent;border:0;text-align:left;font-family:inherit;
}
.cases-cat:hover{background:var(--surface2);color:var(--t1)}
.cases-cat.active{
  background:var(--grad-soft);color:var(--t1);
  border:1px solid var(--border2);
}
.cases-cat .cnt{
  font-family:var(--mono);font-size:11px;
  background:var(--surface3);padding:1px 8px;border-radius:10px;color:var(--t3);
}
.cases-cat.active .cnt{background:rgba(59,130,246,.25);color:var(--cyan)}
.cases-content{min-width:0;min-height:1400px}
.cases-header{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:20px;flex-wrap:wrap;gap:12px;
}
.cases-header .title{font-family:var(--display);font-size:22px;font-weight:700;color:var(--t1)}
.cases-header .count{font-family:var(--mono);font-size:13px;color:var(--t3)}
.cases-pagination{
  display:flex;justify-content:center;gap:6px;margin-top:32px;
}
.cases-pagination button{
  min-width:38px;height:38px;padding:0 10px;border-radius:var(--rs);
  background:var(--surface);border:1px solid var(--border);color:var(--t2);
  font-family:var(--mono);font-size:13px;cursor:pointer;transition:all .2s;
}
.cases-pagination button:hover{background:var(--surface2);color:var(--t1);border-color:var(--border2)}
.cases-pagination button.active{background:var(--grad);color:#fff;border-color:transparent}
.cases-pagination button:disabled{opacity:.35;cursor:not-allowed}

/* 联系表单 */
.contact-form{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--rl);padding:32px;backdrop-filter:blur(12px);
}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:13px;color:var(--t2);margin-bottom:6px;font-weight:500}
.form-row input,.form-row textarea,.form-row select{
  width:100%;padding:12px 14px;background:var(--bg2);
  border:1px solid var(--border);border-radius:var(--rs);
  color:var(--t1);font-family:inherit;font-size:14px;transition:border-color .2s;
}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{
  outline:none;border-color:var(--border3);
}
.form-row textarea{min-height:120px;resize:vertical}
.form-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}

@media (max-width:880px){
  .cases-layout{grid-template-columns:1fr}
  .cases-sidebar{position:static;max-height:none}
  .cases-sidebar{display:flex;flex-wrap:wrap;gap:6px}
  .cases-sidebar h5{width:100%}
  .cases-cat{width:auto}
}
@media (max-width:560px){
  .form-grid-2{grid-template-columns:1fr}
  .contact-form{padding:22px}
}