/* ============================================================
   码农科技 (安徽码农科技)  |  首页设计系统
   浅色 + 品牌红；深红/暗色替代方案中的「深蓝」板块。
   ============================================================ */

:root {
  --red:          #d61f26;
  --red-bright:   #e8262e;
  --red-hover:    #b81920;
  --red-deep:     #8c1216;
  --red-darkest:  #360608;

  --ink:          #1b1b1e;
  --ink-2:        #141416;   /* 最深板块底色 */
  --ink-soft:     #33333a;
  --gray:         #6c6c74;
  --gray-soft:    #8a8a92;
  --gray-faint:   #b4b4bb;

  --bg:           #f2f2f3;
  --bg-alt:       #f7f6f6;
  --white:        #ffffff;
  --line:         #e7e7ea;

  --shadow-card:  0 20px 45px -22px rgba(24,24,30,.28);
  --shadow-card-hover: 0 34px 60px -24px rgba(150,20,26,.30);
  --shadow-bar:   0 40px 70px -30px rgba(120,12,18,.55);
  --shadow-header:0 8px 30px -18px rgba(20,20,25,.25);

  --font-cn: "Noto Sans SC", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-en: "Saira", "Noto Sans SC", sans-serif;

  --wrap: 1240px;
  --gutter: clamp(20px, 5vw, 48px);
  --header-h: 84px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: 92px; }
body {
  margin: 0;
  font-family: var(--font-cn);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4,p { margin: 0; }
img,svg { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Buttons ---------- */
.btn {
  --pad-y: 12px; --pad-x: 24px;
  display: inline-flex; align-items: center; gap: 9px;
  padding: var(--pad-y) var(--pad-x);
  border-radius: 8px; font-weight: 700; font-size: 15px;
  letter-spacing: .01em; line-height: 1; white-space: nowrap;
  transition: transform .25s cubic-bezier(.2,.7,.3,1), background .2s, color .2s, box-shadow .25s, border-color .2s;
}
.btn .arr { transition: transform .25s ease; font-family: var(--font-en); }
.btn:hover .arr { transform: translateX(4px); }
.btn-red { background: var(--red); color:#fff; }
.btn-red:hover { background: var(--red-hover); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); border: 1.5px solid rgba(27,27,30,.18); }
.btn-ghost:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-white { background:#fff; color: var(--red); }
.btn-white:hover { transform: translateY(-2px); }
.btn-outline-white { background: transparent; color:#fff; border:1.5px solid rgba(255,255,255,.55); }
.btn-outline-white:hover { border-color:#fff; background: rgba(255,255,255,.10); transform: translateY(-2px); }
.btn-lg { --pad-y: 16px; --pad-x: 32px; border-radius: 999px; font-size: 16px; }
.btn-xl { --pad-y: 20px; --pad-x: 44px; border-radius: 999px; font-size: 18px; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky; top: 0; z-index: 200;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s, background .3s, border-color .3s, height .3s;
}
.site-header::after { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none; background: linear-gradient(180deg, rgba(8,8,10,.5) 0%, rgba(8,8,10,0) 100%); transition: opacity .3s; }
.site-header.scrolled { background: rgba(20,20,24,.98); box-shadow: 0 10px 34px -20px rgba(0,0,0,.7); border-bottom-color: rgba(255,255,255,.06); }
.site-header.scrolled::after { opacity: 0; }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 20px; width: 100%; max-width: 100%; margin: 0; padding: 0 0 0 clamp(28px, 5.5vw, 104px); }

/* brand */
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-logo {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 11px;
  background: linear-gradient(150deg, var(--red-bright), var(--red-deep));
  color:#fff; font-family: var(--font-en); font-weight: 700; font-size: 16px;
  letter-spacing: -.04em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 900; font-size: 22px; color: #fff; letter-spacing: .04em; display: inline-flex; align-items: flex-start; }
.brand-tm { font-size: 9px; font-weight: 600; margin-left: 2px; color: rgba(255,255,255,.5); }
.brand-slogan { font-size: 11px; color: rgba(255,255,255,.5); letter-spacing: .16em; margin-top: 3px; }

/* nav */
.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; margin-right: clamp(6px, 1vw, 16px); }
.nav > a, .nav-item > a {
  position: relative; display: inline-flex; align-items: center; gap: 4px;
  font-size: 16px; font-weight: 500; color: rgba(255,255,255,.82);
  padding: 10px 14px; border-radius: 8px; transition: color .2s, background .2s;
}
.nav > a::after, .nav-item > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px;
  height: 3px; border-radius: 2px; background: var(--red);
  transform: scaleX(0); transform-origin: left; transition: transform .28s cubic-bezier(.2,.7,.3,1);
}
.nav a:hover { color: #fff; }
.nav a.active { color: #fff; font-weight: 700; }
.nav a.active::after, .nav a:hover::after { transform: scaleX(1); }
.nav-geo { color: var(--red-bright) !important; font-weight: 700; }
.caret { font-size: 14px; opacity: .7; margin-left: 1px; transition: transform .2s; }
.nav-item { position: relative; }
.nav-item:hover .caret { transform: rotate(180deg); }

/* dropdown */
.drop {
  position: absolute; top: calc(100% + 6px); left: 50%; transform: translateX(-50%) translateY(8px);
  min-width: 260px; padding: 10px; border-radius: 14px;
  background: #fff; border: 1px solid var(--line); box-shadow: 0 24px 50px -20px rgba(20,20,25,.35);
  opacity: 0; visibility: hidden; transition: opacity .22s, transform .22s, visibility .22s;
}
.nav-item:hover .drop { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.drop a { display: flex; flex-direction: column; gap: 2px; padding: 11px 14px; border-radius: 9px; transition: background .18s; }
.drop a::after { display: none; }
.drop a b { font-size: 15px; color: var(--ink); font-weight: 700; }
.drop a span { font-size: 12.5px; color: var(--gray-soft); }
.drop a:hover { background: rgba(214,31,38,.06); }
.drop a:hover b { color: var(--red); }

/* 三 full-menu button */
.menu-btn { display: grid; gap: 5px; place-content: center; flex: 0 0 auto; width: 46px; height: 46px; border-radius: 10px; border: 1px solid rgba(255,255,255,.22); transition: border-color .2s, background .2s; }
.menu-btn span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; }
.menu-btn:hover { border-color: var(--red); background: rgba(214,31,38,.16); }

/* red hotline block — bleeds to the right edge */
.hotline-block { align-self: stretch; display: flex; align-items: center; gap: 13px; flex: 0 0 auto; margin-left: 4px; padding: 0 clamp(22px, 2.6vw, 40px); background: var(--red); color: #fff; transition: background .2s; }
.hotline-block:hover { background: var(--red-hover); }
.hb-icon { display: grid; place-items: center; width: 32px; height: 36px; flex: 0 0 auto; }
.hb-icon svg { width: 28px; height: 28px; }
.hb-text { display: flex; flex-direction: column; line-height: 1.2; }
.hb-text small { font-size: 12px; opacity: .92; display: flex; align-items: center; gap: 6px; }
.hb-badge { font-size: 10px; font-weight: 700; background: rgba(255,255,255,.24); padding: 2px 6px; border-radius: 4px; letter-spacing: .02em; }
.hb-text b { font-family: var(--font-cn); font-size: clamp(19px, 1.5vw, 25px); font-weight: 800; letter-spacing: .01em; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative; overflow: hidden;
  min-height: 100vh;
  margin-top: calc(-1 * var(--header-h));
  padding-top: var(--header-h);
  display: flex; align-items: center;
  background:
    radial-gradient(90% 100% at 78% 12%, rgba(150,20,24,.42) 0%, rgba(18,17,21,0) 56%),
    linear-gradient(180deg, #1a191e 0%, #131217 58%, #17121a 100%);
}
.hero-inner {
  position: relative; z-index: 2;
  width: 100%;
  padding-block: clamp(40px, 8vh, 100px);
}
.hero-slides { display: grid; }
.hero-slide {
  grid-area: 1 / 1; max-width: 640px;
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease, visibility .6s;
}
.hero-slide.is-active { opacity: 1; visibility: visible; transform: none; }
.eyebrow { color: var(--red); font-weight: 700; font-size: 16px; letter-spacing: .02em; margin-bottom: 20px; }
.hero-title { font-size: clamp(42px, 5.6vw, 76px); font-weight: 900; line-height: 1.14; letter-spacing: -.01em; color: #fff; margin-bottom: 26px; }
.hero-title .accent { color: #fff; }
.hero-desc { color: rgba(255,255,255,.85); font-size: clamp(16px, 1.35vw, 20px); line-height: 1.9; margin-bottom: 38px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

.hero-controls { position: absolute; z-index: 3; bottom: 44px; left: var(--gutter); display: flex; align-items: center; gap: 16px; margin: 0; }
.hero-arrow { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; border: 1.5px solid rgba(255,255,255,.28); color: #fff; transition: .22s; }
.hero-arrow:hover { border-color: var(--red-bright); color: var(--red-bright); transform: translateY(-2px); }
.hero-arrow svg { width: 20px; height: 20px; }
.hero-dots { display: flex; gap: 9px; }
.hero-dots .dot { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.3); transition: width .28s, background .28s; }
.hero-dots .dot.is-active { width: 28px; border-radius: 5px; background: var(--red); }

/* scroll cue */
/* watermark */
.hero-watermark { position: absolute; z-index: 1; left: 0; right: 0; bottom: 13%; text-align: center; font-family: var(--font-cn); font-weight: 900; font-size: clamp(56px, 12vw, 190px); line-height: 1; color: rgba(255,255,255,.05); letter-spacing: .05em; white-space: nowrap; pointer-events: none; user-select: none; }

/* scroll indicator (向下滑动) */
.hero-scroll { position: absolute; z-index: 3; bottom: 40px; right: max(var(--gutter), calc((100vw - var(--wrap)) / 2 + var(--gutter))); display: flex; flex-direction: column; align-items: center; gap: 10px; color: rgba(255,255,255,.6); font-size: 12px; letter-spacing: .22em; transition: color .2s; }
.hero-scroll:hover { color: #fff; }
.mouse { width: 24px; height: 40px; border: 2px solid rgba(255,255,255,.5); border-radius: 13px; position: relative; }
.wheel { position: absolute; left: 50%; top: 7px; width: 4px; height: 8px; border-radius: 2px; background: #fff; transform: translateX(-50%); animation: mwheel 1.7s ease infinite; }
@keyframes mwheel { 0% { opacity: 0; transform: translate(-50%, 0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translate(-50%, 13px); } }

/* hero visual scene */
.hero-visual { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; background: #100f13; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-video-overlay {
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(12,11,16,.86) 0%, rgba(12,11,16,.55) 34%, rgba(12,11,16,.22) 62%, rgba(12,11,16,.42) 100%),
    linear-gradient(180deg, rgba(10,10,12,.45) 0%, rgba(10,10,12,0) 22%, rgba(10,10,12,0) 74%, rgba(10,10,12,.5) 100%);
}
.hero-follow {
  position: absolute; top: 0; left: 0; z-index: 4;
  width: 58px; height: 58px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--red); color: #fff; font-size: 12px; font-weight: 700; letter-spacing: .04em;
  pointer-events: none; opacity: 0; transform: translate3d(-140px, -140px, 0);
  will-change: transform, opacity;
  transition: opacity .3s ease;
  box-shadow: 0 10px 26px -8px rgba(214,31,38,.55);
}
.hero-follow.show { opacity: 1; }
@media (hover: none) { .hero-follow { display: none; } }
.scene {
  position: absolute; inset: 0; overflow: hidden;
  background:
    radial-gradient(40% 46% at 58% 46%, rgba(255,66,62,.5) 0%, rgba(180,20,26,0) 62%),
    radial-gradient(85% 120% at 100% 42%, #8f1116 0%, #3a0709 48%, rgba(18,6,8,0) 100%),
    radial-gradient(70% 62% at 8% 2%, rgba(150,150,168,.18) 0%, rgba(0,0,0,0) 50%),
    linear-gradient(173deg, #26242c 0%, #1e1c23 32%, #161519 60%, #100f13 100%);
}
.scene::before { content:""; position:absolute; left:20%; top:-6%; width:20%; height:112%; background: linear-gradient(180deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,.28) 55%, rgba(255,255,255,0) 100%); filter: blur(26px); transform: skewX(-7deg); mix-blend-mode: screen; opacity:.3; }
.scene::after { content:""; position:absolute; left:0; right:0; bottom:40%; height:2px; background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,220,215,.5) 40%, rgba(255,255,255,0)); filter: blur(1.5px); }
.scene-floor { position: absolute; left:-10%; right:-10%; bottom:0; height:42%; background: linear-gradient(180deg, rgba(70,12,15,0) 0%, rgba(60,10,14,.4) 30%, rgba(20,5,7,.82) 100%), linear-gradient(180deg,#3a3740 0%,#242128 40%,#131217 100%); transform: perspective(600px) rotateX(58deg); transform-origin: bottom center; filter: blur(.4px); }
.scene-glow { position: absolute; left:58%; bottom:24%; width:46%; height:30%; transform: translateX(-50%); background: radial-gradient(closest-side, rgba(255,110,100,.42), rgba(255,110,100,0) 70%); filter: blur(8px); mix-blend-mode: screen; }
.light-beam { position:absolute; top:-20%; width:90px; height:150%; background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,0) 78%); filter: blur(14px); mix-blend-mode: screen; transform: rotate(20deg); }
.beam-1 { left:12%; opacity:.55; }
.beam-2 { left:34%; width:60px; opacity:.4; transform: rotate(16deg); }
.beam-3 { left:68%; width:110px; opacity:.18; background: linear-gradient(180deg, rgba(255,120,110,.45), rgba(255,120,110,0) 75%); transform: rotate(22deg); }
.monument { position:absolute; left:70%; top:50%; transform: translate(-50%,-52%); display:flex; flex-direction:column; align-items:center; line-height:.78; }
.mono-w {
  font-family: var(--font-en); font-weight:700; font-size: clamp(150px, 21vw, 400px);
  color: transparent; background: linear-gradient(158deg,#ff6a60 0%,#ec2730 26%,#b31820 55%,#740d13 82%,#4a080d 100%);
  -webkit-background-clip: text; background-clip: text;
  transform: perspective(1000px) rotateY(-16deg) rotateX(3deg);
  filter: drop-shadow(0 0 26px rgba(255,60,58,.55)) drop-shadow(0 22px 30px rgba(70,6,10,.6));
}
.mono-reflection { transform: perspective(1000px) rotateY(-16deg) rotateX(3deg) scaleY(-1); margin-top:-12px; opacity:.2; filter: blur(4px); -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), rgba(0,0,0,0) 68%); mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), rgba(0,0,0,0) 68%); }
.scene-grain { position:absolute; inset:0; 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='.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); opacity:.06; mix-blend-mode: overlay; pointer-events:none; }
.scene-fade { position:absolute; inset:0; pointer-events:none; background: linear-gradient(90deg, rgba(14,13,18,.92) 0%, rgba(14,13,18,.55) 32%, rgba(14,13,18,0) 62%), linear-gradient(0deg, rgba(12,11,16,.55) 0%, rgba(12,11,16,0) 30%); }
.scene-code { position:absolute; right:14px; top:50%; transform: translateY(-50%); writing-mode: vertical-rl; font-family: var(--font-en); font-size:11px; letter-spacing:.28em; color: rgba(255,255,255,.5); }
.scene-dot { position:absolute; right:40px; bottom:40px; width:12px; height:12px; border-radius:50%; background: var(--red-bright); box-shadow: 0 0 16px 3px rgba(232,38,44,.8); }

/* ============================================================
   STATS
   ============================================================ */
.stats {
  position: relative; z-index: 5;
  padding-block: clamp(38px, 4.5vw, 60px);
  color:#fff; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,0) 45%),
    linear-gradient(100deg,#3d0a0c 0%,#6d1013 34%,#a5171f 70%,#c81f27 100%);
  box-shadow: 0 30px 60px -42px rgba(120,12,18,.55);
}
.stats-bar {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center; gap: 6px; color:#fff;
}
.stat { display: flex; align-items: center; gap: 14px; justify-content: center; }
.stat-ic { display: grid; place-items: center; width: 44px; height: 44px; flex: 0 0 auto; color: #fff; }
.stat-ic svg { width: 34px; height: 34px; }
.stat-text { display: flex; flex-direction: column; line-height: 1.15; }
.stat-num { font-family: var(--font-cn); font-weight: 900; font-size: clamp(26px, 2.6vw, 38px); letter-spacing: 0; color: #fff; }
.stat-label { font-size: 14px; color: rgba(255,255,255,.82); margin-top: 3px; }
.stat-divider { width: 1px; height: 44px; background: rgba(255,255,255,.22); justify-self: center; }

/* ============================================================
   SECTION SHELL + HEADS
   ============================================================ */
.section { padding-block: clamp(60px, 7vw, 100px); }
.section-head { text-align: center; margin-bottom: 52px; }
.section-eyebrow { display: inline-block; font-family: var(--font-en); font-size: 13px; font-weight: 600; letter-spacing: .28em; color: var(--red); margin-bottom: 12px; }
.section-eyebrow.light { color: rgba(255,255,255,.8); }
.section-head h2 { font-size: clamp(26px, 3vw, 38px); font-weight: 900; color: var(--ink); letter-spacing: .01em; }
.head-underline { display: block; width: 46px; height: 4px; border-radius: 2px; background: var(--red); margin: 18px auto 0; }
.section-head p { color: var(--gray); font-size: 16px; margin-top: 20px; }
.section-head.on-dark h2 { color: #fff; }
.section-head.on-dark p { color: rgba(255,255,255,.72); }

/* horizontal 中文 · ENGLISH heading (夜猫-style) */
.sh-heading { position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 15px; line-height: 1.1; }
.sh-cn { font-size: clamp(25px, 3vw, 38px); font-weight: 900; color: var(--ink); letter-spacing: .01em; }
.sh-sep { flex: 0 0 auto; width: 8px; height: 8px; border-radius: 50%; background: var(--gray-faint); }
.sh-en { font-family: var(--font-en); font-size: clamp(28px, 3.5vw, 46px); font-weight: 700; color: var(--red); letter-spacing: .03em; }
.section-head.on-dark .sh-cn { color: #fff; }
@media (max-width: 560px) { .sh-en { font-size: clamp(24px, 8vw, 34px); } .sh-cn { font-size: clamp(22px, 6.5vw, 30px); } .sh-heading { gap: 11px; } }

/* ============================================================
   SERVICES MATRIX
   ============================================================ */
.services { background: var(--bg); }
.svc-tabs { display: flex; align-items: center; justify-content: center; gap: 14px; margin-bottom: 40px; }
.svc-arrow { display: grid; place-items: center; width: 44px; height: 44px; flex: 0 0 auto; border-radius: 50%; background: var(--red); color:#fff; transition: .22s; }
.svc-arrow:hover { background: var(--red-hover); transform: translateY(-2px); }
.svc-arrow svg { width: 20px; height: 20px; }
.svc-tablist { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; background: #fff; padding: 6px; border-radius: 999px; border: 1px solid var(--line); }
.svc-tab { padding: 12px 24px; border-radius: 999px; font-size: 15px; font-weight: 600; color: var(--ink-soft); transition: .22s; }
.svc-tab:hover { color: var(--red); }
.svc-tab.is-active { background: var(--red); color:#fff; }

.svc-panels { position: relative; }
.svc-panel { display: none; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.svc-panel.is-active { display: grid; animation: fadeUp .5s cubic-bezier(.2,.7,.3,1); }
@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

.svc-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-areas: "ic arr" "title title" "desc desc";
  align-content: start;
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: 28px 28px 26px; min-height: 180px; overflow: hidden;
  transition: transform .28s cubic-bezier(.2,.7,.3,1), box-shadow .28s, border-color .28s;
}
.svc-card::before {
  content: ""; position: absolute; left: 0; top: 26px; bottom: 26px; width: 3px; border-radius: 0 3px 3px 0;
  background: linear-gradient(var(--red-bright), var(--red-deep));
  transform: scaleY(0); transform-origin: top; transition: transform .32s cubic-bezier(.2,.7,.3,1);
}
.svc-card-ic {
  grid-area: ic; display: grid; place-items: center;
  width: 54px; height: 54px; border-radius: 15px; margin-bottom: 22px;
  background: linear-gradient(150deg, var(--red-bright), var(--red-deep)); color: #fff;
  transition: transform .28s;
}
.svc-card-ic svg { width: 26px; height: 26px; }
.svc-card .arr {
  grid-area: arr; align-self: start; justify-self: end;
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--bg); color: var(--gray-soft); font-family: var(--font-en); font-size: 16px; font-style: normal;
  transition: background .25s, color .25s, transform .25s;
}
.svc-card b { grid-area: title; font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 9px; }
.svc-card > span:not(.svc-card-ic) { grid-area: desc; font-size: 13.5px; color: var(--gray); line-height: 1.7; }
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); border-color: rgba(214,31,38,.28); }
.svc-card:hover::before { transform: scaleY(1); }
.svc-card:hover .svc-card-ic { transform: scale(1.06) rotate(-3deg); }
.svc-card:hover .arr { background: var(--red); color: #fff; transform: translateX(3px); }

/* --- services matrix (夜猫-style: dark feature card + red-header columns) --- */
.svc-matrix { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-card); background: #fff; }

.svc-feature { display: flex; flex-direction: column; color: #fff; background: radial-gradient(130% 80% at 88% 0%, #2c0d10 0%, #16151a 55%); }
.svc-feature-head { display: flex; align-items: center; gap: 14px; padding: 28px; min-height: 130px; border-bottom: 1px solid rgba(255,255,255,.08); }
.svc-feature-ic { flex: 0 0 auto; width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; color: #fff; background: linear-gradient(150deg, var(--red-bright), var(--red-deep)); }
.svc-feature-ic svg { width: 26px; height: 26px; }
.svc-feature-title h3 { font-size: 22px; font-weight: 800; color: #fff; }
.svc-feature-title p { font-size: 13px; color: rgba(255,255,255,.6); margin-top: 4px; }
.svc-feature-body { display: flex; flex-direction: column; gap: 20px; padding: 26px 28px 28px; flex: 1; }
.svc-feature-desc { font-size: 14px; line-height: 1.85; color: rgba(255,255,255,.72); }
.svc-tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.svc-tile { display: flex; align-items: center; gap: 8px; padding: 12px; border-radius: 10px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1); font-size: 13px; font-weight: 600; color: rgba(255,255,255,.9); transition: border-color .2s, background .2s; }
.svc-tile svg { flex: 0 0 auto; width: 15px; height: 15px; color: var(--red-bright); }
.svc-tile:hover { border-color: rgba(232,38,44,.5); background: rgba(232,38,44,.1); }
.svc-feature-link { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; color: var(--red-bright); font-weight: 700; font-size: 15px; }
.svc-feature-link .arr { font-family: var(--font-en); transition: transform .25s; }
.svc-feature-link:hover .arr { transform: translateX(5px); }

.svc-col { display: flex; flex-direction: column; border-left: 1px solid var(--line); }
.svc-col-head { min-height: 130px; padding: 24px 22px; display: flex; flex-direction: column; gap: 10px; color: #fff; background: linear-gradient(155deg, var(--red-bright), var(--red-deep)); }
.svc-col-ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.2); color: #fff; }
.svc-col-ic svg { width: 22px; height: 22px; }
.svc-col-head h4 { font-size: 18px; font-weight: 800; }
.svc-col-head small { font-size: 12px; color: rgba(255,255,255,.82); }
.svc-col-list { display: flex; flex-direction: column; flex: 1; }
.svc-col-list a { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 14px 22px; font-size: 14.5px; color: var(--ink-soft); border-bottom: 1px solid var(--line); transition: background .2s, color .2s, padding-left .2s; }
.svc-col-list a:last-child { border-bottom: none; }
.svc-col-list .chev { font-style: normal; color: var(--gray-faint); font-size: 16px; transition: color .2s, transform .2s; }
.svc-col-list a:hover { background: rgba(214,31,38,.05); color: var(--red); padding-left: 27px; }
.svc-col-list a:hover .chev { color: var(--red); transform: translateX(3px); }
@media (max-width: 1080px) {
  .svc-matrix { grid-template-columns: 1fr 1fr; gap: 16px; border: none; box-shadow: none; background: transparent; overflow: visible; }
  .svc-feature { grid-column: 1 / -1; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
  .svc-feature-head { min-height: 0; }
  .svc-tiles { grid-template-columns: 1fr 1fr 1fr; }
  .svc-col { border-left: none; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-card); }
  .svc-col-head { min-height: 0; }
}
@media (max-width: 620px) {
  .svc-matrix { grid-template-columns: 1fr; }
  .svc-tiles { grid-template-columns: 1fr 1fr; }
}

/* --- services accordion (夜猫-style hover expand) --- */
.services .wrap { max-width: min(1420px, 94vw); }
.svc-acc { display: flex; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-card); background: #fff; height: 512px; }
.svc-acc-item { position: relative; flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; border-left: 1px solid var(--line); transition: flex-grow .4s cubic-bezier(.25,.8,.35,1); contain: layout paint; }
.svc-acc-item:first-child { border-left: none; }
.svc-acc-item.is-open { flex-grow: 2.7; }

.svc-acc-head { position: relative; min-height: 150px; padding: 26px 22px; display: flex; flex-direction: column; gap: 10px; color: #fff; background: linear-gradient(155deg, var(--red-bright), var(--red-deep)); transition: background .35s; overflow: hidden; }
.svc-acc-item.is-open .svc-acc-head { background: radial-gradient(130% 90% at 88% 0%, #2c0d10 0%, #16151a 60%); }
.svc-acc-ic { width: 38px; height: 38px; display: grid; place-items: center; flex: 0 0 auto; color: #fff; }
.svc-acc-ic svg { width: 32px; height: 32px; }
.svc-acc-titles h3 { font-size: 18px; font-weight: 800; white-space: nowrap; }
.svc-acc-item.is-open .svc-acc-titles h3 { font-size: 22px; }
.svc-acc-titles p { font-size: 12px; color: rgba(255,255,255,.82); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.svc-acc-more { position: absolute; top: 0; left: 0; z-index: 5; width: 64px; height: 64px; border-radius: 50%; display: none; place-items: center; background: var(--red); color: #fff; font-size: 13px; font-weight: 700; pointer-events: none; transform: translate(-120px, -120px); will-change: transform; box-shadow: 0 8px 24px -6px rgba(214,31,38,.55); }
.svc-acc-item.is-open .svc-acc-more { display: grid; }

.svc-acc-list { display: flex; flex-direction: column; flex: 1; background: #f7f6f6; }
.svc-acc-item.is-open .svc-acc-list { display: none; }
.svc-acc-list a { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 13px 22px; font-size: 14px; color: var(--ink-soft); border-bottom: 1px solid var(--line); white-space: nowrap; overflow: hidden; transition: background .2s, color .2s, padding-left .2s; }
.svc-acc-list a:last-child { border-bottom: none; }
.svc-acc-list .chev { font-style: normal; color: var(--gray-faint); font-size: 15px; flex: 0 0 auto; }
.svc-acc-list a:hover { background: rgba(214,31,38,.05); color: var(--red); padding-left: 26px; }
.svc-acc-list a:hover .chev { color: var(--red); }

.svc-acc-expand { display: none; flex: 1; flex-direction: column; gap: 18px; padding: 24px 30px 26px; background: #fff; overflow: hidden; }
.svc-acc-item.is-open .svc-acc-expand { display: flex; animation: accFade .45s ease .05s both; }
@keyframes accFade { from { opacity: 0; } to { opacity: 1; } }
.svc-acc-desc { font-size: 14.5px; line-height: 1.8; color: var(--gray); }
.svc-acc-tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.atile { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 9px; padding: 16px 8px; border-radius: 14px; background: #f5f4f4; font-size: 13.5px; font-weight: 600; color: var(--ink-soft); text-align: center; transition: background .2s, color .2s, transform .2s; }
.atile svg { width: 26px; height: 26px; color: var(--red); }
.atile:hover { background: rgba(214,31,38,.06); color: var(--red); transform: translateY(-3px); }

@media (max-width: 1080px) {
  .svc-acc { flex-direction: column; height: auto; min-height: 0; }
  .svc-acc-item { border-left: none; border-top: 1px solid var(--line); flex: none; }
  .svc-acc-item:first-child { border-top: none; }
  .svc-acc-head, .svc-acc-item.is-open .svc-acc-head { min-height: 0; background: linear-gradient(155deg, var(--red-bright), var(--red-deep)); }
  .svc-acc-titles h3, .svc-acc-item.is-open .svc-acc-titles h3 { font-size: 19px; }
  .svc-acc-more { display: none !important; }
  .svc-acc-list, .svc-acc-item.is-open .svc-acc-list { display: flex; }
  .svc-acc-expand, .svc-acc-item.is-open .svc-acc-expand { display: none; }
}

/* ============================================================
   AI GEO (dark section)
   ============================================================ */
.geo { position: relative; background: radial-gradient(120% 90% at 80% 0%, #2a0a0d 0%, var(--ink-2) 55%); color:#fff; overflow: hidden; }
.geo-grid-bg { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(80% 70% at 50% 30%, #000 0%, transparent 80%); -webkit-mask-image: radial-gradient(80% 70% at 50% 30%, #000 0%, transparent 80%); }
.geo .wrap { position: relative; z-index: 1; }
.geo-body { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }

/* knowledge-graph visual */
.geo-visual { position: relative; max-width: 500px; margin-inline: auto; width: 100%; }

/* AI answer card (replaces the generic orb-graph — shows GEO outcome) */
.ai-answer { position: relative; border-radius: 20px; overflow: hidden; background: linear-gradient(180deg, rgba(38,22,24,.92), rgba(18,15,17,.94)); border: 1px solid rgba(255,255,255,.1); box-shadow: 0 34px 80px -34px rgba(0,0,0,.75); }
.ai-head { display: flex; align-items: center; gap: 12px; padding: 13px 18px; border-bottom: 1px solid rgba(255,255,255,.08); background: rgba(255,255,255,.03); }
.ai-dots { display: flex; gap: 6px; flex: 0 0 auto; }
.ai-dots i { width: 9px; height: 9px; border-radius: 50%; background: rgba(255,255,255,.16); }
.ai-dots i:first-child { background: rgba(232,38,44,.6); }
.ai-head-title { font-size: 13px; font-weight: 600; color: rgba(255,255,255,.62); letter-spacing: .01em; }
.ai-models { display: flex; gap: 5px; margin-left: auto; flex: 0 0 auto; }
.ai-model { width: 21px; height: 21px; border-radius: 6px; display: grid; place-items: center; flex: 0 0 auto; }
.ai-model svg { width: 12px; height: 12px; fill: #fff; }
.ai-body { padding: 22px 22px 6px; }
.ai-q { max-width: 88%; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); color: rgba(255,255,255,.92); font-size: 14.5px; line-height: 1.6; padding: 12px 16px; border-radius: 4px 15px 15px 15px; margin: 0 0 20px; }
.ai-a-label { display: flex; align-items: center; gap: 8px; font-size: 13.5px; color: rgba(255,255,255,.58); margin: 0 0 14px; }
.ai-spark { color: var(--red-bright); font-size: 15px; }
.ai-rec { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; margin-bottom: 10px; border: 1px solid rgba(255,255,255,.09); }
.ai-rec-top { background: linear-gradient(120deg, rgba(232,38,44,.18), rgba(232,38,44,.04)); border-color: rgba(232,38,44,.55); box-shadow: 0 10px 34px -14px rgba(232,38,44,.5); }
.ai-rec-dim { opacity: .48; }
.ai-rank { font-family: var(--font-en); font-size: 15px; font-weight: 700; color: rgba(255,255,255,.4); flex: 0 0 auto; }
.ai-rec-top .ai-rank { color: var(--red-bright); }
.ai-rec-main { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.ai-rec-main b { color: #fff; font-size: 16px; font-weight: 700; }
.ai-rec-main > span { font-size: 12.5px; color: rgba(255,255,255,.62); }
.ai-rec-tag { flex: 0 0 auto; font-size: 12px; font-weight: 700; color: #fff; background: var(--red); padding: 5px 11px; border-radius: 999px; }
.ai-blur { display: block; height: 9px; border-radius: 5px; background: rgba(255,255,255,.2); }
.ai-blur.sm { width: 58%; height: 7px; background: rgba(255,255,255,.1); }
.ai-foot { display: flex; align-items: center; gap: 10px; padding: 12px 22px 18px; font-size: 13px; color: rgba(255,255,255,.72); }
.ai-foot-bar { width: 3px; height: 15px; border-radius: 2px; background: var(--red-bright); flex: 0 0 auto; }

.geo-links { position: absolute; inset: 0; width: 100%; height: 100%; }
.geo-links line { stroke-width: 1.3; shape-rendering: geometricPrecision; }
.geo-dot { fill: #ff7a72; filter: drop-shadow(0 0 5px rgba(255,90,82,.95)); }
.geo-core { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 108px; height: 108px; border-radius: 50%; display: grid; place-items: center; font-family: var(--font-en); font-weight: 700; font-size: 30px; color:#fff; background: radial-gradient(circle at 35% 30%, #ff5a52, #b3141b); box-shadow: 0 0 36px 3px rgba(232,38,44,.45); z-index: 2; }
.geo-core::before { content: ""; position: absolute; inset: -16px; border-radius: 50%; z-index: -1; background: radial-gradient(circle, rgba(232,38,44,.55) 0%, rgba(232,38,44,0) 68%); animation: geoPulse 3s ease-in-out infinite; pointer-events: none; }
@keyframes geoPulse { 0%,100% { transform: scale(.9); opacity: .55; } 50% { transform: scale(1.28); opacity: .95; } }
.geo-node { position: absolute; transform: translate(-50%,-50%); display: inline-flex; align-items: center; gap: 10px; padding: 0; font-size: 14px; font-weight: 700; color: #fff; background: none; border: none; white-space: nowrap; z-index: 3; }
.geo-badge { flex: 0 0 auto; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; box-shadow: 0 6px 16px -6px rgba(0,0,0,.6); transition: transform .25s; }
.geo-node:hover .geo-badge { transform: scale(1.1); }
.geo-logo { width: 21px; height: 21px; fill: #fff; }
.geo-openai { background: #10a37f; }
.geo-anthropic { background: #d97757; }
.geo-gemini { background: linear-gradient(135deg, #4285f4, #9b72cb 55%, #d96570); }
.geo-deepseek { background: #4d6bfe; }
.geo-qwen { background: #615ced; }
.geo-baidu { background: #2932e1; }
.geo-node.n1 { left: 17%; top: 17%; }
.geo-node.n2 { left: 83%; top: 17%; }
.geo-node.n3 { left: 8%; top: 52%; }
.geo-node.n4 { left: 92%; top: 52%; }
.geo-node.n5 { left: 24%; top: 86%; }
.geo-node.n6 { left: 76%; top: 86%; }

.geo-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.geo-card { display: flex; flex-direction: column; padding: 26px; border-radius: 16px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.1); transition: transform .28s, border-color .28s, background .28s; }
.geo-card-ic { color: var(--red-bright); margin-bottom: 16px; transition: transform .28s; }
.geo-card-ic svg { width: 30px; height: 30px; }
.geo-card:hover .geo-card-ic { transform: scale(1.08) translateY(-2px); }
.geo-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; color:#fff; }
.geo-card p { font-size: 14px; color: rgba(255,255,255,.68); line-height: 1.75; }
.geo-card:hover { transform: translateY(-6px); border-color: rgba(232,38,44,.5); background: rgba(232,38,44,.08); }
.geo-cta { text-align: center; margin-top: 48px; }

/* ============================================================
   CASES
   ============================================================ */
.cases { background: var(--white); }
.cases .wrap { max-width: min(1420px, 94vw); }

/* underline filter tabs */
.filter-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: clamp(20px, 3.4vw, 48px); margin-bottom: 46px; }
.filter { position: relative; padding: 8px 2px; font-size: 16px; font-weight: 600; color: var(--gray); background: none; border: none; transition: color .22s; }
.filter::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px; border-radius: 2px; background: var(--red); transform: scaleX(0); transition: transform .26s cubic-bezier(.2,.7,.3,1); }
.filter:hover { color: var(--ink); }
.filter.is-active { color: var(--ink); font-weight: 800; }
.filter.is-active::after { transform: scaleX(1); }

/* image-cover cards + light bento (first card wide) */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; grid-auto-flow: dense; }
.case-card { position: relative; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-card); transition: transform .3s cubic-bezier(.2,.7,.3,1), box-shadow .3s; }
.case-card:first-child { grid-column: span 2; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.case-cover { position: relative; height: 344px; overflow: hidden; color: #fff; }
.case-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; transition: transform .5s cubic-bezier(.2,.7,.3,1); }
.case-card:hover .case-photo { transform: scale(1.06); }
.cover-a { background: radial-gradient(115% 90% at 78% 12%, #ff3b42, rgba(0,0,0,0) 56%), linear-gradient(150deg, #c81f27, #5e0b10); }
.cover-b { background: radial-gradient(115% 90% at 80% 12%, #43464f, rgba(0,0,0,0) 56%), linear-gradient(150deg, #2a2c33, #101114); }
.cover-c { background: radial-gradient(115% 90% at 78% 12%, #d1252d, rgba(0,0,0,0) 56%), linear-gradient(150deg, #8f1319, #390709); }
.cover-d { background: radial-gradient(115% 90% at 80% 12%, #6a6e77, rgba(0,0,0,0) 56%), linear-gradient(150deg, #494c54, #232529); }
.cover-e { background: radial-gradient(115% 90% at 78% 12%, #ff6a4d, rgba(0,0,0,0) 56%), linear-gradient(150deg, #db452c, #7a1013); }
.cover-f { background: radial-gradient(115% 90% at 78% 12%, #ff474e, rgba(0,0,0,0) 56%), linear-gradient(150deg, #c81f27, #5e0b10); }
.case-cover::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, rgba(0,0,0,.32) 0%, rgba(0,0,0,0) 24%, rgba(0,0,0,0) 44%, rgba(0,0,0,.74) 100%); }
.case-cover::after { content:""; position:absolute; inset:0; 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='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); opacity:.08; mix-blend-mode: overlay; }
.case-wm { position: absolute; z-index: 0; left: 24px; top: 40%; transform: translateY(-50%); font-weight: 900; font-size: clamp(30px, 3.6vw, 50px); color: rgba(255,255,255,.11); white-space: nowrap; letter-spacing: .01em; }
.case-tag { position: absolute; z-index: 2; left: 18px; top: 16px; font-size: 12px; font-weight: 600; color:#fff; padding: 5px 12px; border-radius: 999px; background: rgba(0,0,0,.3); border: 1px solid rgba(255,255,255,.22); }
.case-data { position: absolute; z-index: 2; right: 18px; top: 16px; font-family: var(--font-cn); font-weight: 800; font-size: 14px; color:#fff; padding: 6px 12px; border-radius: 8px; background: rgba(214,31,38,.92); }
.case-loc { position: absolute; z-index: 2; right: 20px; bottom: 22px; display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: rgba(255,255,255,.85); }
.case-loc svg { width: 14px; height: 14px; }
.case-foot { position: absolute; z-index: 2; left: 24px; bottom: 20px; }
.case-name { font-size: 22px; font-weight: 800; color:#fff; letter-spacing: .01em; }
.case-sub { font-size: 13px; color: rgba(255,255,255,.78); margin-top: 5px; }
@media (max-width: 1080px) { .case-grid { grid-template-columns: repeat(2, 1fr); } .case-card:first-child { grid-column: span 2; } .case-cover { height: 300px; } }
@media (max-width: 620px) { .case-grid { grid-template-columns: 1fr; } .case-card:first-child { grid-column: auto; } .case-cover { height: 250px; } }

/* view-more */
.cases-more { display: flex; flex-direction: column; align-items: center; gap: 20px; margin-top: clamp(40px, 5vw, 56px); }
.cases-more-count { font-size: 14px; color: var(--gray); letter-spacing: .01em; }
.cases-more-count b { color: var(--red); font-weight: 800; font-family: var(--font-en); margin: 0 1px; }
.cases-more-btn { min-width: 210px; justify-content: center; gap: 10px; background: transparent; color: var(--red); border: 1.5px solid rgba(214,31,38,.55); }
.cases-more-btn:hover { background: var(--red); border-color: var(--red); color: #fff; transform: translateY(-2px); }
.cases-more-btn .arr { font-family: var(--font-en); }

/* ============================================================
   SOLUTIONS (carousel)
   ============================================================ */
.solution { background: var(--bg); border-top: 1px solid var(--line); }
.solution .wrap { max-width: min(1420px, 94vw); }
.sol-carousel { display: flex; align-items: center; gap: 22px; }
.sol-arrow { display: grid; place-items: center; width: 52px; height: 52px; flex: 0 0 auto; border-radius: 50%; background: var(--red); color:#fff; transition: background .22s, transform .22s, opacity .22s; }
.sol-arrow:hover { background: var(--red-hover); transform: translateY(-2px); }
.sol-arrow svg { width: 20px; height: 20px; }
.sol-arrow:disabled { opacity: .28; cursor: default; transform: none; }
.sol-viewport { overflow: hidden; flex: 1 1 auto; }
.sol-track { display: flex; gap: 24px; transition: transform .55s cubic-bezier(.2,.7,.3,1); }

/* horizontal image + content card, 2 per view */
.sol-card { flex: 0 0 calc((100% - 24px) / 2); display: grid; grid-template-columns: 43% 1fr; background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-card); transition: border-color .28s ease; }
.sol-card:hover { border-color: var(--red); }

.sol-cover { position: relative; overflow: hidden; min-height: 300px; }
.sol-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sol-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(205deg, rgba(20,20,22,.12) 0%, rgba(20,20,22,.30) 55%, rgba(150,17,22,.62) 100%); }
.sol-idx { position: absolute; top: 18px; left: 20px; z-index: 2; font-family: var(--font-en); font-size: 15px; font-weight: 700; letter-spacing: .12em; color: rgba(255,255,255,.9); }
.sol-cat { position: absolute; bottom: 18px; left: 20px; z-index: 2; display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: #fff; }
.sol-cat::before { content: ""; width: 18px; height: 2px; background: #fff; border-radius: 2px; }

.sol-info { padding: 30px 32px 28px; display: flex; flex-direction: column; }
.sol-info h3 { font-size: 21px; font-weight: 700; color: var(--ink); margin-bottom: 14px; line-height: 1.35; }
.sol-info p { font-size: 14.5px; color: var(--gray); line-height: 1.85; margin-bottom: 20px; }
.sol-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
.sol-tags span { font-size: 12px; font-weight: 600; color: var(--red); background: rgba(214,31,38,.08); padding: 5px 12px; border-radius: 999px; }
.sol-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 18px; border-top: 1px solid var(--line); }
.sol-metric { font-size: 13px; font-weight: 600; color: var(--ink-2, #141416); }
.sol-metric::before { content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 7px; border-radius: 50%; background: var(--red); vertical-align: middle; }

/* group dots */
.sol-dots { display: flex; justify-content: center; gap: 10px; margin-top: 30px; }
.sol-dot { width: 9px; height: 9px; border-radius: 50%; background: #d4d4d8; transition: width .3s, background .3s; cursor: pointer; }
.sol-dot.is-active { width: 28px; border-radius: 999px; background: var(--red); }
.card-link { display: inline-flex; align-items: center; gap: 8px; color: var(--red); font-weight: 700; font-size: 15px; }
.card-link .arr { font-family: var(--font-en); transition: transform .25s; }
.card-link:hover .arr { transform: translateX(5px); }

/* ============================================================
   PARTNER
   ============================================================ */
.partner { background: var(--white); border-top: 1px solid var(--line); }
.logo-row { display: grid; grid-template-columns: repeat(8, 1fr); align-items: start; gap: 30px 24px; }
.logo { display: flex; flex-direction: column; align-items: center; gap: 12px; filter: grayscale(1); opacity: .62; transition: opacity .28s, transform .28s, filter .28s; }
.logo:hover { filter: grayscale(0); opacity: 1; transform: translateY(-3px); }
.logo img { height: 38px; width: auto; max-width: 100%; object-fit: contain; }
.logo-name { font-size: 13px; font-weight: 600; letter-spacing: .04em; color: var(--gray-soft); white-space: nowrap; }
.partner-names { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 46px; }
.partner-names span { font-size: 14px; font-weight: 600; color: var(--ink-soft); background: var(--bg); border: 1px solid var(--line); padding: 8px 18px; border-radius: 999px; }
.partner-names span:last-child { background: var(--red); color:#fff; border-color: var(--red); }

/* ============================================================
   PROMISE
   ============================================================ */
.promise { background: radial-gradient(90% 140% at 88% 10%, rgba(232,38,44,.4), rgba(232,38,44,0) 55%), linear-gradient(105deg,#360608 0%,#6d1013 46%,#b8181f 100%); color:#fff; }
.promise-inner { display: grid; grid-template-columns: 1.2fr 1fr; gap: 56px; align-items: center; padding-block: clamp(56px, 7vw, 96px); }
.promise-copy h2 { font-size: clamp(30px, 4vw, 48px); font-weight: 900; line-height: 1.14; margin: 14px 0 22px; }
.promise-copy p { color: rgba(255,255,255,.9); font-size: 16px; line-height: 1.9; margin-bottom: 14px; }
.promise-sub { color: rgba(255,255,255,.72) !important; font-size: 14.5px !important; }
.promise-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 12px; }
.promise-badges { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.pbadge { padding: 26px 24px; border-radius: 16px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); transition: border-color .28s ease, background .28s ease; }
.pbadge:hover { border-color: rgba(255,255,255,.45); background: rgba(255,255,255,.17); }
.pbadge-ic { display: block; width: 32px; height: 32px; margin-bottom: 16px; }
.pbadge-ic svg { width: 32px; height: 32px; stroke: #fff; }
.pbadge b { display: block; font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.pbadge span { font-size: 13px; color: rgba(255,255,255,.72); }

/* ============================================================
   NEWS
   ============================================================ */
.news { background: var(--bg-alt); }
.news .wrap { max-width: min(1420px, 94vw); }
.news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.news-card { display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-card); transition: border-color .28s ease; }
.news-card:hover { border-color: var(--red); }
.news-cover { position: relative; aspect-ratio: 16 / 11; overflow: hidden; }
.news-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .55s cubic-bezier(.2,.7,.3,1); }
.news-card:hover .news-photo { transform: scale(1.06); }
.news-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.34) 0%, rgba(0,0,0,0) 42%); }
.news-badge { position: absolute; z-index: 2; left: 16px; top: 14px; font-size: 12px; font-weight: 600; color:#fff; padding: 5px 12px; border-radius: 999px; background: var(--red); }
.news-badge.badge-blue { background: rgba(20,20,22,.82); }
.news-badge.badge-gray { background: rgba(90,90,98,.85); }
.news-body { display: flex; flex-direction: column; flex: 1; padding: 20px 22px 20px; }
.news-body time { font-family: var(--font-en); font-size: 13px; letter-spacing: .04em; color: var(--gray-soft); }
.news-body h3 { font-size: 16px; font-weight: 700; color: var(--ink); line-height: 1.55; margin: 10px 0 0; min-height: 50px; transition: color .25s; }
.news-card:hover .news-body h3 { color: var(--red); }
.news-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); }
.news-views { font-size: 12.5px; color: var(--gray-faint); }
.news-foot .card-link { font-size: 14px; }
.news-more { text-align: center; margin-top: 46px; }

/* ============================================================
   DUAL CTA
   ============================================================ */
.dual { display: grid; grid-template-columns: 1fr 1fr; }
.dual-col { padding: clamp(52px, 6vw, 92px) var(--gutter); display: flex; }
.dual-inner { max-width: 520px; margin-inline: auto; color:#fff; width: 100%; }
.dual-dark { background: radial-gradient(80% 120% at 20% 20%, #2a2c31, var(--ink-2)); }
.dual-red { background: radial-gradient(80% 120% at 80% 20%, #e8262e, var(--red-deep)); }
.dual-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .1em; padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,.14); margin-bottom: 18px; }
.dual-inner h3 { font-size: clamp(22px, 2.6vw, 32px); font-weight: 900; line-height: 1.24; margin-bottom: 14px; }
.dual-inner p { color: rgba(255,255,255,.82); font-size: 15.5px; line-height: 1.8; margin-bottom: 28px; }

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta { background: var(--bg-alt); text-align: center; padding-block: clamp(64px, 8vw, 108px); }
.final-cta h2 { font-size: clamp(28px, 3.6vw, 44px); font-weight: 900; color: var(--ink); margin-bottom: 18px; }
.final-cta p { color: var(--gray); font-size: 17px; line-height: 1.9; margin-bottom: 40px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--ink-2); color: #b7b7bd; }
.assure { border-bottom: 1px solid #262629; background: linear-gradient(180deg, rgba(232,38,44,.055), transparent 72%); }
.assure-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; padding-block: 48px; }
.assure-item { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 12px; padding: 4px 22px; transition: transform .3s cubic-bezier(.2,.7,.3,1); }
.assure-item + .assure-item::before { content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 1px; height: 64px; background: linear-gradient(180deg, transparent, rgba(255,255,255,.14), transparent); }
.assure-ic { display: grid; place-items: center; width: 46px; height: 46px; color: var(--red-bright); transition: transform .3s cubic-bezier(.2,.7,.3,1); }
.assure-ic svg { width: 32px; height: 32px; stroke: var(--red-bright); }
.assure-item b { position: relative; color:#fff; font-size: 16px; font-weight: 700; letter-spacing: .04em; padding-bottom: 10px; }
.assure-item b::after { content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%); width: 14px; height: 2px; border-radius: 2px; background: var(--red-bright); opacity: .45; transition: width .32s cubic-bezier(.2,.7,.3,1), opacity .32s; }
.assure-item span { font-size: 12.5px; color: #9a9aa2; line-height: 1.65; max-width: 14em; }
.assure-item:hover { transform: translateY(-4px); }
.assure-item:hover .assure-ic { transform: scale(1.14) translateY(-1px); }
.assure-item:hover b::after { width: 34px; opacity: 1; }

.footer-main { display: grid; grid-template-columns: 1.3fr 2.4fr 1fr; gap: 44px; padding-block: 52px; }
.footer-contact .brand { margin-bottom: 22px; }
.brand-light .brand-name { color:#fff; }
.footer-hotline { margin-bottom: 20px; }
.footer-hotline small { display: block; font-size: 12px; color: #7f7f87; }
.footer-hotline b { font-family: var(--font-cn); font-weight: 800; font-size: 26px; color: var(--red-bright); letter-spacing: .01em; }
.footer-info li { font-size: 13.5px; color: #9a9aa0; margin-bottom: 9px; }
.footer-info li span { display: inline-block; width: 62px; color: #6f6f77; }
.footer-links { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.fl-col h4 { color:#fff; font-size: 15px; font-weight: 700; margin-bottom: 16px; }
.fl-col a { display: block; font-size: 13.5px; color: #8b8b92; margin-bottom: 11px; transition: color .2s; }
.fl-col a:hover { color: var(--red-bright); }
.footer-qr { display: flex; gap: 18px; }
.qr { text-align: center; }
.qr-img { display: block; width: 92px; height: 92px; border-radius: 10px; background: #fff; margin: 0 auto 10px; border: 4px solid #fff; object-fit: contain; }
.qr span { font-size: 12.5px; color: #9a9aa0; line-height: 1.5; }
.qr span small { color: #6f6f77; }
.footer-friend { border-top: 1px solid #262629; padding-block: 20px; font-size: 13px; color: #6f6f77; }
.footer-friend b { color: #8b8b92; font-weight: 600; margin-right: 6px; }
.footer-friend a { color: #6f6f77; margin: 0 8px; transition: color .2s; }
.footer-friend a:hover { color: var(--red-bright); }
.footer-copy { border-top: 1px solid #262629; }
.footer-copy-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-block: 22px; font-size: 12.5px; color: #6f6f77; }
.copy-left span { display: block; line-height: 1.8; }
.copy-left .gov-record { display: inline-flex; align-items: center; gap: 5px; }
.gov-ic { width: 16px; height: 16px; flex: 0 0 auto; object-fit: contain; }
.copy-right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
/* 资质标记:去容器,只留四角刻线(像证书钢印),用品牌红而非另起金色 */
.copy-badge { position: relative; padding: 5px 10px; font-size: 12px; font-weight: 600; letter-spacing: .05em; color: #a6a6ae; transition: color .25s ease; }
.copy-badge::before, .copy-badge::after { content: ""; position: absolute; width: 7px; height: 7px; border: 0 solid rgba(214,31,38,.62); transition: border-color .25s ease; }
.copy-badge::before { left: 0; top: 0; border-top-width: 1px; border-left-width: 1px; }
.copy-badge::after { right: 0; bottom: 0; border-bottom-width: 1px; border-right-width: 1px; }
.copy-badge:hover { color: #fff; }
.copy-badge:hover::before, .copy-badge:hover::after { border-color: var(--red-bright); }
.copy-sep { width: 1px; height: 15px; background: rgba(255,255,255,.16); margin: 0 4px; }
.copy-right > a { transition: color .2s; }
.copy-right > a:hover { color: var(--red-bright); }

/* ============================================================
   FLOATING DOCK
   ============================================================ */
.dock { position: fixed; right: 22px; bottom: 40px; z-index: 150; display: flex; flex-direction: column; gap: 12px; }
.dock-btn { position: relative; display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; background: #fff; color: var(--ink-soft); border: 1px solid var(--line); transition: background .2s, color .2s, transform .2s; }
.dock-btn:hover { background: var(--red); color:#fff; transform: translateY(-2px); border-color: var(--red); }
.dock-btn svg { width: 22px; height: 22px; }
.dock-tip { position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(8px); background: var(--ink); color:#fff; font-size: 13px; line-height: 1.5; padding: 8px 14px; border-radius: 10px; white-space: nowrap; opacity: 0; visibility: hidden; transition: .22s; pointer-events: none; }
.dock-tip b { font-family: var(--font-cn); font-weight: 700; }
.dock-tip::after { content:""; position: absolute; left: 100%; top: 50%; transform: translateY(-50%); border: 6px solid transparent; border-left-color: var(--ink); }
.dock-btn:hover .dock-tip { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.dock-qr { position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(8px); background:#fff; color: var(--ink-soft); font-size: 12.5px; padding: 14px; border-radius: 12px; box-shadow: 0 20px 44px -16px rgba(20,20,25,.4); text-align: center; width: 148px; opacity: 0; visibility: hidden; transition: .22s; }
.dock-qr .qr-img { width: 118px; height: 118px; margin: 0 auto 8px; }
.dock-wechat:hover { background: #07c160; border-color: #07c160; }
.dock-wechat:hover .dock-tip { display: none; }
.dock-wechat:hover .dock-qr { opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0); }
.dock-top { opacity: 0; visibility: hidden; transform: translateY(8px); }
.dock-top.show { opacity: 1; visibility: visible; transform: none; }

/* ============================================================
   MENU OVERLAY
   ============================================================ */
.mega { position: fixed; inset: 0; z-index: 300; background: rgba(12,12,15,.98); opacity: 0; visibility: hidden; transition: opacity .35s, visibility .35s; display: grid; place-items: center; padding: 24px; }
.mega.show { opacity: 1; visibility: visible; }
.mega-close { position: absolute; top: 26px; right: 30px; width: 48px; height: 48px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25); color: #fff; font-size: 20px; display: grid; place-items: center; opacity: 0; transition: opacity .35s ease, transform .3s, background .2s, border-color .2s; }
.mega.show .mega-close { opacity: 1; }
.mega-close:hover { background: var(--red); border-color: var(--red); transform: rotate(90deg); }
.mega-panel { width: min(1080px, 92vw); }
.mega-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 36px; margin-bottom: 44px; }
.mega-en { font-family: var(--font-en); font-size: 12px; letter-spacing: .28em; color: var(--red-bright); }
.mega-col h4 { color: #fff; font-size: 20px; font-weight: 800; margin: 8px 0 16px; }
.mega-col a { display: block; color: rgba(255,255,255,.6); font-size: 15px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.08); transition: color .2s, padding-left .2s; }
.mega-col a:hover { color: #fff; padding-left: 8px; }
.mega-cta { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; padding-top: 32px; border-top: 1px solid rgba(255,255,255,.14); }
.mega-tel small { display: block; color: rgba(255,255,255,.55); font-size: 13px; margin-bottom: 2px; }
.mega-tel b { font-family: var(--font-cn); font-weight: 800; font-size: 30px; color: #fff; }

/* mega open animation — only opacity + transform (GPU-composited, no reflow/repaint) */
.mega-col, .mega-cta { opacity: 0; transform: translateY(26px); transition: opacity .5s ease, transform .55s cubic-bezier(.2,.7,.3,1); }
.mega.show .mega-col, .mega.show .mega-cta { opacity: 1; transform: none; }
.mega.show .mega-cols .mega-col:nth-child(1) { transition-delay: .08s; }
.mega.show .mega-cols .mega-col:nth-child(2) { transition-delay: .14s; }
.mega.show .mega-cols .mega-col:nth-child(3) { transition-delay: .20s; }
.mega.show .mega-cols .mega-col:nth-child(4) { transition-delay: .26s; }
.mega.show .mega-cta { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .mega-col, .mega-cta { opacity: 1; transform: none; transition: none; }
  .mega.show .mega-cols .mega-col, .mega.show .mega-cta { transition-delay: 0s; }
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }
.svc-panel .svc-card, .geo-cards .geo-card { }
.case-grid .case-card:nth-child(2), .news-grid .news-card:nth-child(2) { transition-delay: .06s; }
.case-grid .case-card:nth-child(3), .news-grid .news-card:nth-child(3) { transition-delay: .12s; }
.case-grid .case-card:nth-child(4), .news-grid .news-card:nth-child(4) { transition-delay: .18s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } .geo-core::before { animation: none; } .geo-dot { display: none; } }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1160px) {
  .brand-slogan { display: none; }
  .nav > a, .nav-item > a { padding: 10px 10px; font-size: 15px; }
}
@media (max-width: 1080px) {
  .svc-panel { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .logo-row { grid-template-columns: repeat(4, 1fr); gap: 34px 24px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-qr { grid-column: 1 / -1; }
}
@media (max-width: 980px) {
  :root { --header-h: 66px; }
  .nav { display: none; }
  .menu-btn { margin-left: auto; }
  .hb-text { display: none; }
  .hotline-block { padding: 0 18px; gap: 0; }
  .hb-icon { width: 38px; height: 38px; }
  .mega-cols { grid-template-columns: repeat(2, 1fr); gap: 24px 30px; }
  .mega-tel b { font-size: 24px; }

  .hero-visual { width: 100%; opacity: 1; }
  .scene-fade { background: linear-gradient(90deg, rgba(14,13,18,.92) 0%, rgba(14,13,18,.5) 42%, rgba(14,13,18,.12) 100%), linear-gradient(0deg, rgba(12,11,16,.5) 0%, rgba(12,11,16,0) 30%); }
  .hero-inner { padding-block: clamp(44px,10vh,90px); }
  .hero-watermark { font-size: clamp(40px, 15vw, 100px); bottom: 16%; }
  .hero-scroll { display: none; }

  .stats-bar { grid-template-columns: 1fr 1fr; gap: 30px 16px; }
  .stat-divider { display: none; }

  .geo-body { grid-template-columns: 1fr; gap: 40px; }
  .geo-visual { max-width: 360px; }
  .promise-inner { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 860px) {
  .sol-card { flex-basis: 100%; grid-template-columns: 1fr; }
  .sol-cover { min-height: 0; aspect-ratio: 16 / 9; }
  .sol-carousel { gap: 12px; }
  .sol-arrow { width: 44px; height: 44px; }
}
@media (max-width: 720px) {
  .svc-panel { grid-template-columns: 1fr; }
  .dual { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: repeat(2, 1fr); }
  .assure-row { grid-template-columns: repeat(3, 1fr); gap: 30px 12px; }
  .assure-item + .assure-item::before { display: none; }
  .dock { right: 14px; bottom: 24px; }
}
@media (max-width: 560px) {
  :root { --gutter: 18px; }
  .brand-slogan { display: none; }
  .hero-title { font-size: clamp(30px, 8.5vw, 46px); }
  .hero-desc br { display: none; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .stats-bar { gap: 24px 10px; }
  .stat { gap: 12px; }
  .stat-ic { width: 42px; height: 42px; }
  .stat-ic svg { width: 21px; height: 21px; }
  .stat-num { font-size: 24px; }
  .stat-label { font-size: 12.5px; }
  .news-grid, .logo-row { grid-template-columns: repeat(2, 1fr); }
  .geo-cards, .promise-badges { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr 1fr; }
  .footer-copy-inner { flex-direction: column; align-items: flex-start; }
  .svc-tablist { width: 100%; }
}
@media (max-width: 400px) {
  .stats-bar { grid-template-columns: 1fr; }
  .assure-row { grid-template-columns: repeat(2, 1fr); }
  .logo-row { grid-template-columns: 1fr 1fr; }
}