/* =========================================================================
   联众智合官网 - 视觉系统
   设计语言：Neo Cyber · 霓虹潮酷
   结构：tokens → reset → base → layout → components → sections → animations
   ========================================================================= */

/* ============================================================
   1. 设计 Tokens
   ============================================================ */
:root {
  /* —— 品牌色：橙→粉→紫渐变（取自图标气质：活力、年轻、动感）—— */
  --c-orange: #FF6B35;       /* 暖橙 */
  --c-pink:   #F7267C;       /* 热粉 */
  --c-purple: #8B5CF6;       /* 鲜紫 */
  --c-cyan:   #00E5FF;       /* 电光青 */
  --c-lime:   #B5FF6D;       /* 酸柠绿 */

  /* —— 渐变 —— */
  --g-primary: linear-gradient(135deg, var(--c-orange) 0%, var(--c-pink) 50%, var(--c-purple) 100%);
  --g-warm:    linear-gradient(135deg, var(--c-orange) 0%, var(--c-pink) 100%);
  --g-cool:    linear-gradient(135deg, var(--c-cyan) 0%, var(--c-purple) 100%);
  --g-text:    linear-gradient(135deg, var(--c-orange) 0%, var(--c-pink) 60%, var(--c-purple) 100%);
  --g-border:  linear-gradient(135deg, rgba(255,107,53,.6), rgba(139,92,246,.6));

  /* —— 深色底 —— */
  --bg-0: #07071A;           /* 页面底色 */
  --bg-1: #0E1030;           /* 区块交替底色 */
  --bg-2: #161942;           /* 卡片底色 */
  --bg-card: rgba(255,255,255,.04);
  --bg-card-hover: rgba(255,255,255,.07);

  /* —— 玻璃边框 —— */
  --border-faint: rgba(255,255,255,.08);
  --border-soft:  rgba(255,255,255,.14);
  --border-glow:  rgba(0,229,255,.35);

  /* —— 文字 —— */
  --text-0: #FFFFFF;
  --text-1: rgba(255,255,255,.78);
  --text-2: rgba(255,255,255,.5);
  --text-3: rgba(255,255,255,.32);

  /* —— 阴影 / 光晕 —— */
  --shadow-card: 0 10px 30px -10px rgba(0,0,0,.6), 0 1px 0 rgba(255,255,255,.04) inset;
  --shadow-glow-orange: 0 0 30px rgba(255,107,53,.4);
  --shadow-glow-cyan:   0 0 30px rgba(0,229,255,.35);

  /* —— 圆角 —— */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* —— 字体 —— */
  --f-sans: 'Inter', 'PingFang SC', 'Noto Sans SC', 'HarmonyOS Sans SC', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;

  /* —— 字号（clamp 响应式）—— */
  --fs-display: clamp(2.5rem, 5vw + 1rem, 5rem);
  --fs-h1: clamp(2rem, 3.5vw + 1rem, 3.5rem);
  --fs-h2: clamp(1.75rem, 2.5vw + 1rem, 2.75rem);
  --fs-h3: clamp(1.25rem, 1vw + 1rem, 1.5rem);
  --fs-body: clamp(0.95rem, .25vw + .9rem, 1.0625rem);
  --fs-small: 0.875rem;
  --fs-micro: 0.75rem;

  /* —— 缓动 / 时长 —— */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --d-fast: 220ms;
  --d-base: 420ms;
  --d-slow: 800ms;
  --d-xslow: 1200ms;

  /* —— 间距 —— */
  --sp-section: clamp(5rem, 8vw, 8rem);
  --sp-block: clamp(1.5rem, 3vw, 3rem);
  --container: 1280px;
  --gutter: clamp(1rem, 3vw, 2rem);
}

/* ============================================================
   2. Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html, body { height: 100%; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  font-family: var(--f-sans);
  font-size: var(--fs-body);
  line-height: 1.65;
  color: var(--text-1);
  background: var(--bg-0);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  position: relative;
}
img, picture, video, canvas, svg { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--c-cyan); outline-offset: 3px; border-radius: 4px; }

/* ============================================================
   3. 基础元素
   ============================================================ */
::selection { background: var(--c-pink); color: #fff; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--c-pink), var(--c-purple)); border-radius: 10px; }

h1, h2, h3, h4 { color: var(--text-0); line-height: 1.2; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p { color: var(--text-1); }

/* 渐变文字工具 */
.gradient-text {
  background: var(--g-text);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* 容器 */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ============================================================
   4. 背景层（光晕 + 噪点）
   ============================================================ */
.bg-orbs {
  position: fixed; inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}
.bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .55;
  will-change: transform;
}
.bg-orbs .orb--1 {
  width: 60vw; height: 60vw;
  top: -20vw; left: -10vw;
  background: radial-gradient(circle, var(--c-orange), transparent 60%);
  animation: orb-drift-1 22s var(--ease-out-quart) infinite alternate;
}
.bg-orbs .orb--2 {
  width: 50vw; height: 50vw;
  top: 30%; right: -15vw;
  background: radial-gradient(circle, var(--c-purple), transparent 60%);
  animation: orb-drift-2 28s var(--ease-out-quart) infinite alternate;
}
.bg-orbs .orb--3 {
  width: 45vw; height: 45vw;
  bottom: -20vw; left: 30%;
  background: radial-gradient(circle, var(--c-cyan), transparent 60%);
  opacity: .35;
  animation: orb-drift-3 26s var(--ease-out-quart) infinite alternate;
}
.bg-noise {
  position: fixed; inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ============================================================
   5. 滚动进度条
   ============================================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0;
  height: 3px; width: 0;
  background: var(--g-primary);
  z-index: 200;
  transition: width 80ms linear;
  box-shadow: 0 0 10px rgba(247,38,124,.6);
}

/* ============================================================
   6. 自定义光标（高端感）
   ============================================================ */
.cursor {
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity .3s;
}
.cursor.is-active { opacity: 1; }
.cursor__dot {
  position: absolute;
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform .12s var(--ease-out-expo), width .2s, height .2s;
}
.cursor__ring {
  position: absolute;
  width: 36px; height: 36px;
  border: 1.5px solid #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform .25s var(--ease-out-expo), width .25s, height .25s, background .25s, border-color .25s;
}
.cursor.is-hover .cursor__ring {
  width: 60px; height: 60px;
  background: rgba(255,255,255,.08);
  border-color: var(--c-cyan);
}
.cursor.is-press .cursor__dot { transform: translate(-50%, -50%) scale(1.6); }

@media (max-width: 1024px) { .cursor { display: none; } }
@media (prefers-reduced-motion: reduce) { .cursor { display: none; } }

/* ============================================================
   7. 头部
   ============================================================ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.1rem 0;
  transition: background var(--d-base) var(--ease-out-expo),
              backdrop-filter var(--d-base) var(--ease-out-expo),
              padding var(--d-base) var(--ease-out-expo),
              border-color var(--d-base) var(--ease-out-expo);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  padding: .7rem 0;
  background: rgba(7,7,26,.65);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  border-bottom-color: var(--border-faint);
}
.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
}
.brand {
  display: inline-flex; align-items: center;
  position: relative;
  flex-shrink: 0;
}
.brand__logo {
  height: 42px; width: auto;
  filter: drop-shadow(0 0 14px rgba(255,107,53,.5));
  transition: transform var(--d-base) var(--ease-spring);
}
.brand:hover .brand__logo { transform: rotate(-6deg) scale(1.05); }

.nav__list { display: flex; gap: .25rem; flex-shrink: 0; }
.nav__link {
  position: relative;
  display: inline-block;
  padding: .55rem .9rem;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-1);
  border-radius: var(--r-pill);
  white-space: nowrap;        /* 防止按钮内文字换行 */
  transition: color var(--d-fast) var(--ease-out-expo);
}
.nav__link::before {
  content: ""; position: absolute; inset: 0;
  border-radius: inherit;
  background: var(--g-primary);
  opacity: 0;
  transform: scale(.85);
  transition: opacity var(--d-fast) var(--ease-out-expo),
              transform var(--d-fast) var(--ease-spring);
  z-index: -1;
}
.nav__link:hover, .nav__link.is-active { color: #fff; }
.nav__link:hover::before, .nav__link.is-active::before { opacity: 1; transform: scale(1); }

/* —— Header 响应式：断点简化（去掉右上电话后）—— */
@media (max-width: 1180px) {
  .nav__link { padding: .55rem .75rem; font-size: .88rem; }
}
@media (max-width: 1024px) {
  .nav__link { padding: .5rem .7rem; font-size: .85rem; }
  .brand__logo { height: 38px; }
}
@media (max-width: 880px) {
  .nav { display: none; }              /* 真正窄屏：导航整块收起来（mobile menu 占位） */
}

/* ============================================================
   8. Hero
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  isolation: isolate;
}
.hero__slider {
  position: absolute; inset: 0;
  z-index: -1;
}
.hero__slider .bxslider, .hero__slider .bx-viewport, .hero__slider ul { height: 100% !important; }
.hero__slider img {
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(.55) saturate(120%);
}
.hero__overlay {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(255,107,53,.25), transparent 50%),
    radial-gradient(ellipse at 70% 70%, rgba(139,92,246,.35), transparent 50%),
    linear-gradient(180deg, rgba(7,7,26,.4) 0%, rgba(7,7,26,.85) 100%);
  z-index: 1;
}
.hero__content {
  position: relative; z-index: 2;
  text-align: center;
  padding: 0 var(--gutter);
  max-width: 960px;
  will-change: transform;
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .4rem 1rem;
  font-size: var(--fs-small); font-weight: 500;
  color: var(--c-cyan);
  border: 1px solid var(--border-glow);
  border-radius: var(--r-pill);
  background: rgba(0,229,255,.06);
  margin-bottom: 1.5rem;
  letter-spacing: .04em;
}
.hero__eyebrow::before {
  content: ""; width: 6px; height: 6px;
  background: var(--c-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--c-cyan);
  animation: pulse 1.6s ease-in-out infinite;
}
.hero__title {
  font-size: var(--fs-display);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 1.4rem;
}
.hero__title .gradient-text {
  background: linear-gradient(135deg, #fff 0%, var(--c-orange) 40%, var(--c-pink) 70%, var(--c-purple) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--text-1);
  margin-bottom: 2.5rem;
  max-width: 720px;
  margin-left: auto; margin-right: auto;
}
.hero__actions { display: inline-flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }

.hero__scroll {
  position: absolute; bottom: 2.5rem; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  font-size: var(--fs-micro);
  color: var(--text-2);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.hero__scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(180deg, var(--c-cyan), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: ""; position: absolute; top: 0; left: 0;
  width: 100%; height: 30%;
  background: #fff;
  animation: scroll-dot 2.2s var(--ease-out-quart) infinite;
}

/* ============================================================
   9. 通用按钮
   ============================================================ */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  gap: .55rem;
  padding: .9rem 1.8rem;
  font-size: 1rem; font-weight: 600;
  border-radius: var(--r-pill);
  transition: transform var(--d-fast) var(--ease-spring),
              box-shadow var(--d-fast) var(--ease-out-expo);
  overflow: hidden;
  white-space: nowrap;
  cursor: pointer;
  isolation: isolate;
}
.btn--primary {
  color: #fff;
  background: var(--g-primary);
  background-size: 200% 100%;
  background-position: 0% 0%;
  box-shadow: 0 10px 30px -10px rgba(247,38,124,.6);
}
.btn--primary::before {
  content: ""; position: absolute; inset: 0;
  background: var(--g-warm);
  background-size: 200% 100%;
  opacity: 0;
  z-index: -1;
  transition: opacity var(--d-fast) var(--ease-out-expo);
}
.btn--primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 40px -10px rgba(247,38,124,.8);
  background-position: 100% 0;
}
.btn--primary:hover::before { opacity: 1; }

.btn--ghost {
  color: var(--text-0);
  border: 1.5px solid var(--border-soft);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}
.btn--ghost::before {
  content: ""; position: absolute; inset: 0;
  background: var(--g-cool);
  opacity: 0;
  z-index: -1;
  transition: opacity var(--d-fast) var(--ease-out-expo);
}
.btn--ghost:hover {
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-cyan);
}
.btn--ghost:hover::before { opacity: 1; }

.btn--sm { padding: .55rem 1.1rem; font-size: .9rem; }

.btn .arrow {
  transition: transform var(--d-fast) var(--ease-out-expo);
}
.btn:hover .arrow { transform: translateX(4px); }

/* 磁吸效果（JS 加 .magnetic-active 时）*/
.btn--magnetic { transition: transform .15s var(--ease-out-expo); }

/* ============================================================
   10. Section 通用
   ============================================================ */
.section {
  position: relative;
  padding: var(--sp-section) 0;
  isolation: isolate;
}
.section--alt { background: var(--bg-1); }
.section__header {
  text-align: center;
  margin-bottom: clamp(3rem, 5vw, 5rem);
  max-width: 720px;
  margin-left: auto; margin-right: auto;
}
.section__title {
  font-size: var(--fs-h1);
  font-weight: 800;
  margin-bottom: 1rem;
  display: inline-flex; align-items: baseline; gap: 1rem;
  flex-wrap: wrap; justify-content: center;
}
.section__title-num {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 800;
  font-family: var(--f-mono);
  background: var(--g-warm);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  vertical-align: super;
}
.section__sub {
  font-size: 1.05rem;
  color: var(--text-1);
  line-height: 1.7;
}

/* ============================================================
   11. Stats 数字滚动条
   ============================================================ */
.stats {
  padding: 3rem 0;
  background: var(--bg-1);
  border-top: 1px solid var(--border-faint);
  border-bottom: 1px solid var(--border-faint);
  position: relative;
  overflow: hidden;
}
.stats::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(247,38,124,.06), transparent);
  animation: stats-sweep 8s linear infinite;
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  position: relative;
  z-index: 1;
}
.stat {
  text-align: center;
  padding: 1rem;
}
.stat__num {
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  font-family: var(--f-mono);
  background: var(--g-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: .5rem;
}
.stat__label {
  font-size: var(--fs-small);
  color: var(--text-2);
  letter-spacing: .05em;
}
@media (max-width: 720px) {
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   12. 代表作品
   ============================================================ */
.products__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
@media (max-width: 1024px) { .products__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .products__grid { grid-template-columns: 1fr; } }

.product-card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--d-base) var(--ease-out-expo),
              border-color var(--d-base) var(--ease-out-expo),
              background var(--d-base) var(--ease-out-expo);
  transform-style: preserve-3d;
  will-change: transform;
}
.product-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 50%),
              rgba(247,38,124,.15), transparent 40%);
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-expo);
  pointer-events: none;
  z-index: 1;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-soft);
  background: var(--bg-card-hover);
}
.product-card:hover::before { opacity: 1; }
.product-card__img {
  aspect-ratio: 3 / 2;
  border-radius: var(--r-md);
  overflow: hidden;
  margin-bottom: 1.2rem;
  position: relative;
}
.product-card__img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,.3));
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-expo);
}
.product-card:hover .product-card__img::after { opacity: 1; }
.product-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--d-slow) var(--ease-out-quart);
}
.product-card:hover .product-card__img img { transform: scale(1.08); }
.product-card__name {
  font-size: 1.25rem; font-weight: 700;
  margin-bottom: .5rem;
  position: relative; z-index: 2;
}
.product-card__desc {
  font-size: .9rem; color: var(--text-2);
  line-height: 1.6;
  flex: 1;
  position: relative; z-index: 2;
}
.product-card__link {
  display: inline-flex; align-items: center; gap: .3rem;
  margin-top: 1.2rem;
  font-size: .9rem; font-weight: 600;
  color: var(--c-cyan);
  position: relative; z-index: 2;
}
.product-card__link::after {
  content: ""; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--c-cyan);
  transition: width var(--d-base) var(--ease-out-expo);
}
.product-card:hover .product-card__link::after { width: 100%; }

/* ============================================================
   13. 核心优势
   ============================================================ */
.advantages {
  background: var(--bg-1);
  position: relative;
  overflow: hidden;
}
.advantages::before {
  content: ""; position: absolute;
  width: 60%; height: 60%;
  top: 20%; right: -10%;
  background: radial-gradient(circle, rgba(0,229,255,.12), transparent 50%);
  filter: blur(60px);
  z-index: 0;
}
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
  position: relative; z-index: 1;
}
@media (max-width: 1024px) { .advantages__grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .advantages__grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .advantages__grid { grid-template-columns: 1fr; } }

.advantage-card {
  position: relative;
  padding: 2rem 1.5rem;
  min-height: 320px;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--d-base) var(--ease-out-expo),
              border-color var(--d-base) var(--ease-out-expo);
  display: flex; flex-direction: column;
  isolation: isolate;
}
.advantage-card::before {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(135deg, rgba(0,229,255,.04) 0%, transparent 50%),
    radial-gradient(circle at 50% 0%, rgba(255,107,53,.08), transparent 60%);
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-expo);
  z-index: -1;
}
.advantage-card::after {
  content: ""; position: absolute;
  width: 80%; height: 80%;
  top: 10%; left: 10%;
  background: var(--c-cyan);
  filter: blur(80px);
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-expo);
  z-index: -1;
}
.advantage-card:hover {
  transform: translateY(-8px);
  border-color: var(--c-cyan);
}
.advantage-card:hover::before { opacity: 1; }
.advantage-card:hover::after { opacity: .15; }
.advantage-card__icon {
  width: 56px; height: 56px;
  margin-bottom: 1.4rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--r-md);
  background: var(--g-cool);
  position: relative;
  overflow: hidden;
  transition: transform var(--d-base) var(--ease-spring);
}
.advantage-card:hover .advantage-card__icon { transform: scale(1.1) rotate(-5deg); }
.advantage-card__icon img {
  width: 60%; height: 60%; object-fit: contain;
  filter: brightness(0) invert(1);
  position: relative; z-index: 1;
}
.advantage-card__icon::after {
  content: ""; position: absolute; inset: 0;
  background: var(--g-primary);
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-expo);
}
.advantage-card:hover .advantage-card__icon::after { opacity: 1; }
.advantage-card__title {
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: .9rem;
  position: relative;
}
.advantage-card__title::after {
  content: ""; display: block;
  width: 36px; height: 2px;
  margin-top: .5rem;
  background: var(--g-warm);
  transition: width var(--d-base) var(--ease-out-expo);
}
.advantage-card:hover .advantage-card__title::after { width: 60px; }
.advantage-card__desc {
  font-size: .88rem; color: var(--text-2);
  line-height: 1.65;
  flex: 1;
}
.advantage-card__more {
  margin-top: 1.2rem;
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .8rem; font-weight: 600;
  color: var(--text-2);
  letter-spacing: .04em;
  transition: color var(--d-fast) var(--ease-out-expo),
              gap var(--d-fast) var(--ease-out-expo);
}
.advantage-card:hover .advantage-card__more {
  color: var(--c-cyan);
  gap: .7rem;
}

/* ============================================================
   14. 团队构成
   ============================================================ */
.team__grid {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 3rem;
  align-items: center;
}
@media (max-width: 900px) {
  .team__grid { grid-template-columns: 1fr; gap: 2.5rem; }
}
.team__photo {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
}
.team__photo::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,107,53,.15), rgba(139,92,246,.2));
  mix-blend-mode: overlay;
  z-index: 1;
  pointer-events: none;
}
.team__photo img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--d-xslow) var(--ease-out-quart);
}
.team__photo:hover img { transform: scale(1.04); }

.team__list { display: flex; flex-direction: column; gap: 1rem; }
.team__member {
  position: relative;
  display: flex; align-items: flex-start; gap: 1.1rem;
  padding: 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-md);
  transition: transform var(--d-base) var(--ease-out-expo),
              border-color var(--d-base) var(--ease-out-expo),
              background var(--d-base) var(--ease-out-expo);
  overflow: hidden;
}
.team__member::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--g-warm);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--d-base) var(--ease-out-expo);
}
.team__member:hover {
  transform: translateX(6px);
  border-color: var(--border-soft);
  background: var(--bg-card-hover);
}
.team__member:hover::before { transform: scaleY(1); }

.team__avatar {
  flex-shrink: 0;
  width: 50px; height: 50px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.1rem;
  color: #fff;
  background: var(--g-primary);
  box-shadow: 0 0 20px rgba(247,38,124,.4);
  transition: transform var(--d-base) var(--ease-spring);
}
.team__member:hover .team__avatar { transform: scale(1.08) rotate(-5deg); }
.team__avatar[data-i="1"] { background: var(--g-warm); box-shadow: 0 0 20px rgba(255,107,53,.4); }
.team__avatar[data-i="2"] { background: var(--g-cool); box-shadow: 0 0 20px rgba(0,229,255,.4); }
.team__avatar[data-i="3"] { background: linear-gradient(135deg, var(--c-purple), var(--c-lime)); box-shadow: 0 0 20px rgba(139,92,246,.4); }

.team__info { flex: 1; }
.team__name {
  font-size: 1.05rem; font-weight: 700;
  margin-bottom: .25rem;
  display: flex; align-items: baseline; gap: .6rem;
  flex-wrap: wrap;
}
.team__role {
  font-size: .8rem; font-weight: 500;
  color: var(--c-cyan);
  padding: .15rem .55rem;
  background: rgba(0,229,255,.1);
  border-radius: var(--r-pill);
}
.team__bio {
  font-size: .88rem; color: var(--text-2);
  line-height: 1.6;
}

/* ============================================================
   15. 关于我们
   ============================================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3.5rem;
  align-items: center;
}
@media (max-width: 900px) {
  .about__grid { grid-template-columns: 1fr; }
}
.about__text { max-width: 540px; }
.about__text .section__title { justify-content: flex-start; text-align: left; }
.about__text p {
  font-size: 1rem; color: var(--text-1);
  line-height: 1.85;
  margin-bottom: 1rem;
}
.about__text p + p { margin-top: .4rem; }
.about__text .btn { margin-top: 1.5rem; }

.about__image {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  aspect-ratio: 16 / 11;
  border: 1px solid var(--border-faint);
}
.about__image::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(247,38,124,.18), rgba(0,229,255,.18));
  mix-blend-mode: overlay;
  z-index: 1;
  pointer-events: none;
  opacity: .8;
  transition: opacity var(--d-base) var(--ease-out-expo);
}
.about__image:hover::before { opacity: .35; }
.about__image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--d-xslow) var(--ease-out-quart);
}
.about__image:hover img { transform: scale(1.04); }

/* ============================================================
   16. 联系我们
   ============================================================ */
.contact { background: var(--bg-1); position: relative; overflow: hidden; }
.contact::before {
  content: ""; position: absolute;
  width: 50%; height: 50%;
  bottom: -10%; left: -10%;
  background: radial-gradient(circle, rgba(139,92,246,.15), transparent 50%);
  filter: blur(80px);
  z-index: 0;
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 1.5rem;
  position: relative; z-index: 1;
  max-width: 880px;
  margin: 0 auto;
}
@media (max-width: 760px) { .contact__grid { grid-template-columns: 1fr; } }

.contact-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  border-radius: var(--r-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}
.contact-card__title {
  display: flex; align-items: center; gap: .6rem;
  font-size: 1.1rem; font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-0);
}
.contact-card__title::before {
  content: ""; width: 4px; height: 18px;
  background: var(--g-warm);
  border-radius: 2px;
  flex-shrink: 0;
}
.contact-card__title--inline { margin-bottom: .15rem; }
.contact-card__title--inline::before { display: none; }   /* 公众号卡/联系卡内嵌标题，不要装饰条 */

/* —— 联系卡 head（与公众号卡对称）—— */
.contact-info__head {
  display: flex; align-items: center;
  gap: .85rem;
  text-align: left;
  margin-bottom: 1.5rem;
}
.contact-info__icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: var(--g-warm);
  border-radius: var(--r-md);
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 6px 20px -6px rgba(255,107,53,.5);
}
.contact-info__icon svg { width: 24px; height: 24px; }
.contact-info__sub {
  font-size: .82rem;
  color: var(--text-2);
  line-height: 1.4;
}

.contact-list { display: flex; flex-direction: column; gap: .85rem; }
.contact-list li {
  display: flex; align-items: flex-start; gap: .7rem;
  font-size: .92rem; color: var(--text-1);
  line-height: 1.5;
}
.contact-list svg {
  flex-shrink: 0;
  width: 18px; height: 18px;
  color: var(--c-cyan);
  margin-top: 2px;
}
.contact-link {
  color: var(--text-0);
  border-bottom: 1px dashed var(--border-soft);
  transition: color var(--d-fast) var(--ease-out-expo),
              border-color var(--d-fast) var(--ease-out-expo);
}
.contact-link:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

/* —— 公众号卡（独立视觉重心）—— */
.contact-wechat {
  text-align: center;
  position: relative;
  overflow: hidden;
  display: flex; flex-direction: column;
}
.contact-wechat::before {
  content: ""; position: absolute;
  width: 220px; height: 220px;
  top: -60px; right: -60px;
  background: radial-gradient(circle, rgba(0,229,255,.18), transparent 60%);
  filter: blur(30px);
  z-index: 0;
  pointer-events: none;
}
.contact-wechat::after {
  content: ""; position: absolute;
  width: 180px; height: 180px;
  bottom: -40px; left: -40px;
  background: radial-gradient(circle, rgba(139,92,246,.18), transparent 60%);
  filter: blur(30px);
  z-index: 0;
  pointer-events: none;
}
.contact-wechat__head {
  display: flex; align-items: center;
  gap: .85rem;
  text-align: left;
  position: relative; z-index: 1;
  margin-bottom: 1.5rem;
}
.contact-wechat__icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  background: var(--g-cool);
  border-radius: var(--r-md);
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 6px 20px -6px rgba(0,229,255,.5);
}
.contact-wechat__icon svg { width: 24px; height: 24px; }
.contact-card__title--inline { margin-bottom: .15rem; }
.contact-wechat__sub {
  font-size: .82rem;
  color: var(--text-2);
  line-height: 1.4;
}
.contact-qr-wrap {
  position: relative;
  display: flex; justify-content: center;
  flex: 1;
  align-items: center;
  margin: .8rem 0 1.2rem;
  z-index: 1;
}
.contact-qr {
  display: inline-block;
  width: 160px; height: 160px;
  padding: 8px;
  background: #fff;
  border-radius: var(--r-md);
  position: relative;
  transition: transform var(--d-base) var(--ease-spring),
              box-shadow var(--d-base) var(--ease-out-expo);
  box-shadow: 0 12px 30px -10px rgba(0,0,0,.5);
}
.contact-qr--lg {
  width: 200px; height: 200px;
  padding: 10px;
}
.contact-qr:hover {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: 0 18px 40px -10px rgba(0,229,255,.4);
}
.contact-qr img { width: 100%; height: 100%; object-fit: contain; }
.contact-qr-label {
  position: relative; z-index: 1;
  font-size: .85rem; color: var(--text-2);
  letter-spacing: .02em;
}

/* ============================================================
   17. 页脚
   ============================================================ */
.site-footer {
  padding: 2.5rem 0;
  background: var(--bg-0);
  border-top: 1px solid var(--border-faint);
  text-align: center;
  position: relative;
}
.site-footer p {
  font-size: .88rem; color: var(--text-2);
  margin-bottom: .35rem;
}
.site-footer a { color: var(--text-1); transition: color var(--d-fast) var(--ease-out-expo); }
.site-footer a:hover { color: var(--c-cyan); }

/* ============================================================
   18. 浮动联系
   ============================================================ */
.floating-contact {
  position: fixed; right: 1.5rem; bottom: 1.5rem;
  z-index: 50;
  display: inline-flex; align-items: center; gap: .8rem;
  padding: 1rem 1.4rem;
  background: var(--g-primary);
  color: #fff;
  border-radius: var(--r-pill);
  box-shadow: 0 10px 30px -5px rgba(247,38,124,.5);
  transition: transform var(--d-base) var(--ease-spring);
  animation: float 3s ease-in-out infinite;
}
.floating-contact:hover { transform: translateY(-4px) scale(1.04); }
.floating-contact__icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.18);
  border-radius: 50%;
  flex-shrink: 0;
}
.floating-contact__text small { display: block; font-size: .7rem; opacity: .8; }
.floating-contact__text strong { display: block; font-size: 1rem; font-weight: 700; }

/* Email 适配：文本更长 */
.floating-contact--email { padding: .9rem 1.3rem; }
.floating-contact--email .floating-contact__text strong {
  font-size: .88rem;
  font-weight: 600;
  font-family: var(--f-mono);
  letter-spacing: -.01em;
}

@media (max-width: 600px) { .floating-contact { padding: .8rem 1rem; } }

/* ============================================================
   19. 滚动揭示动画（IntersectionObserver 触发）
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--d-slow) var(--ease-out-expo),
              transform var(--d-slow) var(--ease-out-expo);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal[data-delay="1"] { transition-delay: .08s; }
.reveal[data-delay="2"] { transition-delay: .16s; }
.reveal[data-delay="3"] { transition-delay: .24s; }
.reveal[data-delay="4"] { transition-delay: .32s; }
.reveal[data-delay="5"] { transition-delay: .40s; }

.reveal-fade {
  opacity: 0;
  transition: opacity var(--d-slow) var(--ease-out-expo);
}
.reveal-fade.is-visible { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-fade { opacity: 1; transform: none; }
  .bg-orbs .orb { animation: none; }
  .floating-contact { animation: none; }
}

/* ============================================================
   20. Keyframes
   ============================================================ */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.4); }
}
@keyframes scroll-dot {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(400%); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
@keyframes orb-drift-1 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(8vw, 4vh) scale(1.15); }
}
@keyframes orb-drift-2 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(-6vw, -3vh) scale(.9); }
}
@keyframes orb-drift-3 {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(4vw, -5vh) scale(1.1); }
}
@keyframes stats-sweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* ============================================================
   21. bxSlider 覆写（让它在新主题下好看）
   ============================================================ */
.bx-wrapper { background: transparent; border: 0; box-shadow: none; margin: 0; }
.bx-wrapper .bx-pager { padding-top: 0; bottom: 2rem; }
.bx-wrapper .bx-pager-item a {
  width: 30px; height: 3px;
  background: rgba(255,255,255,.3);
  border-radius: 2px;
  transition: background var(--d-fast) var(--ease-out-expo);
}
.bx-wrapper .bx-pager-item a.active,
.bx-wrapper .bx-pager-item a:hover {
  background: var(--g-warm);
}
.bx-wrapper .bx-controls-direction a {
  width: 48px; height: 48px;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(10px);
  border-radius: 50%;
  border: 1px solid var(--border-soft);
  transition: all var(--d-fast) var(--ease-out-expo);
}
.bx-wrapper .bx-controls-direction a:hover {
  background: var(--g-primary);
  border-color: transparent;
}
.bx-wrapper .bx-prev { left: 2rem; background-position: -28px 0 !important; }
.bx-wrapper .bx-next { right: 2rem; background-position: -71px 0 !important; }

/* 加载完成淡入 */
.page-loading { opacity: 0; transition: opacity .5s var(--ease-out-expo); }
.page-loading.is-ready { opacity: 1; }