/* ==========================================================================
   凯尔美科技 · Bosspanda 官网设计系统
   参照 Awwwards / Webby / FWA 获奖站标准构建
   --------------------------------------------------------------------------
   0. 设计令牌 Tokens
   1. 基础重置与排版
   2. 纹理层（grain / dots）
   3. 自定义光标
   4. 顶部导航
   5. Hero 首屏
   6. 滚动叙事区（宣言 / 能力）
   7. 产品矩阵
   8. 服务 / 流程 / 认证
   9. 表单与联系
   10. 页脚
   11. 动效系统
   12. 响应式
   ========================================================================== */

/* ============ 0. 设计令牌 ============
   风格基准：儿童玩具名片（AI Pulsh / 小迪泰外贸名片）
   —— 明亮粉彩、圆润体块、波浪分割、云朵与太阳点缀、暖白底
   ==================================================== */
:root {
  /* 蓝色阶：主品牌色，取自名片的天蓝 */
  --blue:      #4FA3E3;
  --blue-deep: #2C7FC0;
  --blue-soft: #A8D4F2;
  --blue-wash: #EAF6FE;
  --blue-line: #CFE9FA;

  /* 蜜橙色阶：强调色，取自名片的橙 */
  --amber:      #F7A93B;
  --amber-deep: #E08A1E;
  --amber-wash: #FFF3E2;

  /* 玫瑰粉：呼应原品牌色，作为第三辅助色 */
  --rose:      #F2789F;
  --rose-wash: #FFEDF3;

  /* 薄荷绿：点缀色，用于认证/流程等区块 */
  --mint:      #5FC9B0;
  --mint-wash: #E6F8F4;

  /* 中性色：带暖调的浅色系，避免冷灰 */
  --cream:     #FFFDF9;
  --cream-2:   #FFF7EC;
  --cream-3:   #FFEFDD;
  --ink:       #2B3A4A;   /* 主文字：深蓝灰而非纯黑 */
  --ink-2:     #5A7186;

  /* 文本 */
  --t-hi:     var(--ink);
  --t-mid:    #5A7186;
  --t-low:    #92A6B8;
  --t-faint:  #BCCBD8;

  /* 描边：淡蓝灰，比灰更柔和 */
  --line:     #E4EFF7;
  --line-2:   #D3E5F1;
  --line-warm:#FBE7CE;

  /* 兼容旧类名（页脚/深色区仍引用 t-inv 等） */
  --t-inv:      #FFFFFF;
  --t-inv-mid:  rgba(255, 255, 255, .82);
  --t-inv-low:  rgba(255, 255, 255, .62);
  --brand:      var(--blue);
  --brand-lo:   var(--blue-soft);
  --brand-hi:   #D6EEFC;
  --brand-wash: var(--blue-wash);
  --paper:   var(--cream);
  --paper-2: var(--cream-2);
  --paper-3: var(--cream-3);
  --ink-80:  #2C7FC0;
  --line-inv: rgba(255,255,255,.28);

  /* 字体：圆体栈。Comic Sans 只用于 latin 装饰，中文回退到系统圆体 */
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI",
          "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC",
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --round: "Yuanti SC", "YouYuan", "Hiragino Maru Gothic ProN", "Yuanti TC",
           "Comic Sans MS", "Segoe UI", var(--sans);
  --script: "Segoe Script", "Bradley Hand", "Comic Sans MS", "Kaiti SC", "KaiTi", cursive;
  --serif: "Songti SC", "STSong", "Noto Serif SC", Georgia, serif;

  /* 流体字号：圆体需要更大字号才够活泼 */
  --fs-d1: clamp(38px, 6vw, 76px);
  --fs-d2: clamp(30px, 4vw, 52px);
  --fs-h2: clamp(25px, 2.9vw, 38px);
  --fs-h3: clamp(17px, 1.5vw, 21px);
  --fs-lead: clamp(15.5px, 1.3vw, 18px);
  --fs-body: 15.5px;
  --fs-sm:   13.5px;
  --fs-xs:   12px;

  /* 版心与留白节奏：玩具风格更紧凑，不需要高级感的大留白 */
  --max: 1220px;
  --max-text: 64ch;
  --gut: clamp(18px, 3.6vw, 40px);
  --sec-y: clamp(60px, 7.5vw, 108px);

  /* 缓动：玩具风格用带回弹的曲线，更Q弹 */
  --e-out: cubic-bezier(.34, 1.4, .64, 1);
  --e-io:  cubic-bezier(.65, 0, .35, 1);

  /* 圆角：这是该风格最关键的特征，整体大幅放大 */
  --r-sm: 14px;
  --r:    24px;
  --r-lg: 34px;
  --r-xl: 46px;
  --r-pill: 999px;

  /* 柔和彩色投影：替代原先的黑色投影 */
  --sh:    0 3px 0 rgba(79, 163, 227, .10), 0 8px 26px rgba(79, 163, 227, .10);
  --sh-lg: 0 5px 0 rgba(79, 163, 227, .12), 0 18px 48px rgba(79, 163, 227, .18);
  --sh-amber: 0 4px 0 rgba(240, 170, 60, .16), 0 14px 36px rgba(240, 170, 60, .22);
}

/* ============ 1. 基础重置 ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--t-hi);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 纸张纹理：极淡的暖色渐层，替代原来的胶片噪点 */
body::before {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 12% 0%, var(--cream-2) 0%, transparent 58%),
    radial-gradient(ellipse 60% 46% at 92% 8%, var(--blue-wash) 0%, transparent 60%),
    radial-gradient(ellipse 70% 50% at 50% 100%, var(--amber-wash) 0%, transparent 62%);
  opacity: .8;
}

img, svg, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; }
::selection { background: var(--blue-soft); color: var(--ink); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
.wrap-text { max-width: var(--max-text); }

/* 排版层级：圆体 + 中等字重，过重会显得生硬 */
.d1 {
  font-family: var(--round);
  font-size: var(--fs-d1); line-height: 1.14; font-weight: 700;
  letter-spacing: .005em;
}
.d2 {
  font-family: var(--round);
  font-size: var(--fs-d2); line-height: 1.22; font-weight: 700;
  letter-spacing: 0;
}
.h2 {
  font-family: var(--round);
  font-size: var(--fs-h2); line-height: 1.3; font-weight: 700;
  letter-spacing: 0;
}
.h3 { font-family: var(--round); font-size: var(--fs-h3); line-height: 1.42; font-weight: 700; letter-spacing: 0; }
.lead {
  font-size: var(--fs-lead); line-height: 1.75; color: var(--t-mid);
  letter-spacing: 0;
}
.body-t { color: var(--t-mid); }
.tnum { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

.serif { font-family: var(--serif); font-weight: 400; letter-spacing: 0; }
.ital { font-style: italic; }

.accent { color: var(--blue-deep); }

/* 标签：改为圆体加粗 + 手绘感下划线，呼应名片的 "AI SMART" 写法 */
.eyebrow {
  display: inline-flex; align-items: center; gap: .5em;
  font-size: 13px; font-weight: 700;
  letter-spacing: .06em;
  color: var(--blue-deep);
  background: var(--blue-wash);
  padding: .5em 1.1em; border-radius: var(--r-pill);
}
.eyebrow .idx { color: var(--amber-deep); }
.eyebrow::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--amber);
}
.on-dark .eyebrow, .sec-dark .eyebrow { color: var(--amber); background: rgba(255,255,255,.12); }

/* 区块骨架 */
/* 区块底色：改为柔和粉彩交替 */
.sec { padding: var(--sec-y) 0; position: relative; }
.sec-sm { padding: clamp(46px, 5vw, 72px) 0; }
.sec-paper { background: var(--cream-2); }
.sec-blue { background: var(--blue-wash); }
.sec-amber { background: var(--amber-wash); }
.sec-ink { background: var(--blue-deep); color: var(--t-inv); }
.sec-ink .h2, .sec-ink .h3, .sec-ink .d2 { color: var(--t-inv); }
.sec-ink .lead, .sec-ink .body-t { color: var(--t-inv-mid); }

/* 区块头：编号 + 标题 + 说明 三段式 */
.sec-head { margin-bottom: clamp(38px, 4.5vw, 64px); }
.sec-head-row {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .82fr);
  gap: clamp(24px, 3.4vw, 56px); align-items: end;
}
.sec-head-row .lead { padding-bottom: .35em; }
.sec-head.center { text-align: center; }
.sec-head.center .lead { margin: 0 auto; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head .h2 { margin-top: .5em; }

/* 按钮：圆胖胶囊 + 硬边投影（按下时下沉），玩具感的关键 */
.btn {
  --btn-bg: var(--blue);
  --btn-fg: #fff;
  --btn-shadow: var(--blue-deep);
  position: relative; display: inline-flex; align-items: center; gap: .55em;
  padding: .92em 1.75em; border: 0; border-radius: var(--r-pill);
  background: var(--btn-bg); color: var(--btn-fg);
  font-size: 15px; font-weight: 700; letter-spacing: .01em;
  box-shadow: 0 5px 0 var(--btn-shadow), 0 10px 22px rgba(79,163,227,.22);
  transition: transform .28s var(--e-out), box-shadow .28s var(--e-out), background .3s;
  will-change: transform;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 7px 0 var(--btn-shadow), 0 16px 30px rgba(79,163,227,.3); }
/* 按下：硬边投影归零 = 物理下沉反馈 */
.btn:active { transform: translateY(4px); box-shadow: 0 1px 0 var(--btn-shadow), 0 4px 10px rgba(79,163,227,.2); }
.btn .arw { transition: transform .4s var(--e-out); }
.btn:hover .arw { transform: translateX(4px) rotate(8deg); }

.btn-brand { --btn-bg: var(--amber); --btn-fg: #fff; --btn-shadow: var(--amber-deep); }
.btn-brand:hover { box-shadow: 0 7px 0 var(--amber-deep), 0 16px 30px rgba(240,170,60,.34); }
.btn-rose { --btn-bg: var(--rose); --btn-fg: #fff; --btn-shadow: #D95A80; }
.btn-light { --btn-bg: #fff; --btn-fg: var(--blue-deep); --btn-shadow: var(--blue-line); }
.btn-outline {
  --btn-bg: #fff; --btn-fg: var(--blue-deep); --btn-shadow: var(--blue-soft);
}
.sec-ink .btn-outline, .on-dark .btn-outline { --btn-fg: #fff; --btn-shadow: rgba(255,255,255,.3); }

.link-u {
  position: relative; display: inline-block;
  font-size: 14.5px; font-weight: 500; color: var(--brand);
}
.link-u::after {
  content: ''; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1px; background: currentColor;
  transform: scaleX(1); transform-origin: right;
  transition: transform .5s var(--e-out);
}
.link-u:hover::after { transform: scaleX(0); transform-origin: left; }

/* ============ 2. 纹理层 ============ */
/* 胶片颗粒：给整站一层极淡的质感，避免纯色数字感 */
.grain {
  position: fixed; inset: -120%; z-index: 9998;
  pointer-events: none; opacity: .026;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 7s steps(8) infinite;
}
@keyframes grainShift {
  0%,100% { transform: translate(0,0); }
  20% { transform: translate(-3%, 2%); }
  40% { transform: translate(2%, -3%); }
  60% { transform: translate(-2%, -2%); }
  80% { transform: translate(3%, 1%); }
}

/* 点阵网格：技术感的底纹 */
.bg-dots::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(43,58,74,.13) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, #000 20%, transparent 78%);
  pointer-events: none;
}
.bg-dots.on-dark::before {
  background-image: radial-gradient(rgba(250,249,247,.14) 1px, transparent 1px);
}

/* 滚动进度条：4px 圆角糖果条 */
.scroll-prog {
  position: fixed; top: 0; left: 0; z-index: 9999;
  height: 5px; width: 100%;
  background: linear-gradient(90deg, var(--blue) 0%, var(--amber) 100%);
  border-radius: 0 0 4px 4px;
  transform: scaleX(0); transform-origin: left;
  will-change: transform;
}

/* ============ 3. 自定义光标 ============
 * 已按需求停用，系统原生指针已恢复。
 * 下方 .cur / .cur-dot 样式保留备用，元素不会被创建（main.js 的 initCursor 已短路），
 * 原先的 body.has-cursor { cursor: none } 已移除 —— 那行才是让原生光标消失的根因。
 * 如需重新启用：① main.js 的 initCursor() 换回完整实现 ② 加回 has-cursor 的 cursor:none
 */
.cur, .cur-dot { pointer-events: none; z-index: 9997; }
.cur {
  position: fixed; top: 0; left: 0; width: 34px; height: 34px;
  margin: -17px 0 0 -17px; border: 1px solid var(--brand);
  border-radius: 50%; opacity: 0;
  transition: opacity .3s, width .35s var(--e-out), height .35s var(--e-out),
              margin .35s var(--e-out), background .3s;
  mix-blend-mode: difference;
}
.cur-dot {
  position: fixed; top: 0; left: 0; width: 5px; height: 5px;
  margin: -2.5px 0 0 -2.5px; background: var(--brand);
  border-radius: 50%; opacity: 0;
  transition: opacity .3s, transform .2s;
}
.cur.hov { width: 56px; height: 56px; margin: -28px 0 0 -28px; background: rgba(79,163,227,.14); }
.cur.hov-txt { width: 78px; height: 78px; margin: -39px 0 0 -39px; background: var(--brand); border-color: transparent; }
@media (hover: none), (pointer: coarse) { .cur, .cur-dot { display: none; } }

/* 自定义光标已停用 —— 不接管系统指针，交互元素显式声明原生 pointer */
a, button, summary, select, label[for], [data-cur] { cursor: pointer; }

/* ============ 4. 顶部导航 ============
   导航始终为白色圆角悬浮条（不用暗色反白），贴合玩具气质 */
.hdr {
  position: fixed; top: 0; left: 0; right: 0; z-index: 900;
  transition: transform .5s var(--e-out);
  padding: 10px var(--gut) 0; pointer-events: none;
}
.hdr-in {
  max-width: var(--max); margin: 0 auto;
  height: 68px; padding: 0 18px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  background: #fff; border-radius: var(--r-pill);
  box-shadow: 0 3px 0 rgba(79,163,227,.08), 0 10px 30px rgba(79,163,227,.12);
  pointer-events: auto;
  transition: box-shadow .4s, transform .5s var(--e-out), height .35s;
}
.hdr.stuck .hdr-in {
  box-shadow: 0 3px 0 rgba(79,163,227,.12), 0 14px 36px rgba(79,163,227,.18);
}
.hdr.hide { transform: translateY(-130%); }

.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  height: 40px; width: auto; transition: transform .6s var(--e-out);
}
.brand:hover .brand-mark { transform: rotate(-6deg) scale(1.06); }
.brand-txt { display: flex; flex-direction: column; line-height: 1.3; }
.brand-txt b { font-size: 14.5px; font-weight: 700; color: var(--ink); }
.brand-txt span {
  font-size: 10px; color: var(--blue); font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 2px; }
.nav a {
  position: relative; padding: .6em 1.1em; border-radius: var(--r-pill);
  font-size: 14.5px; font-weight: 700; color: var(--t-mid);
  transition: color .3s, background .3s;
}
.nav a:hover { color: var(--blue-deep); background: var(--blue-wash); }
.nav a.on { color: #fff; background: var(--blue); }

.nav-cta {
  margin-left: 10px; padding: .68em 1.45em !important;
  background: var(--amber) !important; color: #fff !important;
  font-weight: 700; font-size: 14px !important;
  box-shadow: 0 4px 0 var(--amber-deep);
  transition: transform .28s var(--e-out), box-shadow .28s, background .3s;
}
.nav-cta:hover { background: var(--amber-deep) !important; transform: translateY(-2px); box-shadow: 0 6px 0 var(--amber-deep); }
.nav-cta:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--amber-deep); }
.nav-cta:hover { background: var(--brand) !important; color: #fff !important; transform: translateY(-2px); box-shadow: 0 8px 22px rgba(79,163,227,.3); }
.hdr.stuck .nav-cta { background: var(--ink) !important; color: #fff !important; }
.hdr.stuck .nav-cta:hover { background: var(--brand) !important; color: #fff !important; }

.burger {
  display: none; width: 44px; height: 44px; border: 0; background: none;
  padding: 12px 11px; position: relative;
}
.burger span {
  display: block; height: 2.5px; width: 100%; background: var(--ink);
  border-radius: 3px; transition: transform .45s var(--e-out), opacity .3s, width .45s var(--e-out);
}
.burger span:nth-child(2) { width: 70%; margin: 5px 0 5px auto; }
.burger.on span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.on span:nth-child(2) { opacity: 0; }
.burger.on span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); width: 100%; }

/* ============ 5. Hero 首屏 ============
   明亮粉彩 + 底部波浪 + 漂浮云朵阳光 */
.hero {
  position: relative; overflow: hidden;
  min-height: 100vh; min-height: 100svh;
  display: flex; align-items: center;
  padding: 150px 0 130px;
  background: linear-gradient(178deg, var(--blue-wash) 0%, var(--cream-2) 58%, var(--cream) 100%);
  color: var(--ink);
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(760px 480px at 84% 12%, var(--amber-wash) 0%, transparent 62%),
    radial-gradient(660px 420px at 8% 78%, var(--rose-wash) 0%, transparent 60%);
  pointer-events: none;
}
.hero-in {
  position: relative; z-index: 3; width: 100%;
  max-width: var(--max); margin: 0 auto; padding: 0 var(--gut);
  display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  gap: clamp(36px, 4.5vw, 70px); align-items: center;
}
.hero .d1 { margin: 22px 0 0; }
.hero .d1 em { font-style: normal; color: var(--amber-deep); position: relative; white-space: nowrap; }
/* 手绘感下划线 */
.hero .d1 em::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: .06em;
  height: .16em; border-radius: 999px;
  background: linear-gradient(90deg, var(--amber-soft, #FFD79A), var(--amber));
  opacity: .5; z-index: -1;
}
.hero .lead { margin: 26px 0 0; max-width: 50ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin: 34px 0 0; }
.hero-tags {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin: 36px 0 0;
}
.hero-tags li {
  display: flex; align-items: center; gap: .5em;
  font-size: 13px; font-weight: 700; color: var(--blue-deep);
  background: #fff; padding: .55em 1.1em;
  border-radius: var(--r-pill);
  box-shadow: 0 2px 0 rgba(79,163,227,.12);
}
.hero-tags li::before {
  content: ''; width: 7px; height: 7px; border-radius: 50%;
  background: var(--amber); flex-shrink: 0;
}

/* 产品图：白底圆角卡 + 彩色环 */
.hero-fig { position: relative; }
.hero-frame {
  position: relative; border-radius: 50% 50% var(--r-xl) var(--r-xl) / 38% 38% var(--r-xl) var(--r-xl);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 34%, #fff 0%, var(--blue-wash) 52%, var(--blue-soft) 100%);
  box-shadow: 0 6px 0 rgba(79,163,227,.14), 0 26px 60px rgba(79,163,227,.20);
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 12% 9%;
}
.hero-frame img {
  position: relative; z-index: 1;
  width: 100%; height: 100%; object-fit: contain;
  filter: drop-shadow(0 18px 26px rgba(43,58,74,.20));
  animation: heroFloat 7s var(--e-io) infinite;
}
@keyframes heroFloat {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50%      { transform: translateY(-14px) rotate(1.5deg); }
}
/* 白色描边圈，增加糖果感 */
.hero-frame::after {
  content: ''; position: absolute; inset: 14px;
  border: 3px dashed rgba(255,255,255,.85);
  border-radius: inherit; pointer-events: none;
}

/* 漂浮数据卡 */
.hero-chip {
  position: absolute; z-index: 3;
  background: #fff; border-radius: var(--r);
  padding: 14px 20px;
  box-shadow: 0 4px 0 rgba(79,163,227,.14), 0 16px 34px rgba(79,163,227,.20);
  display: flex; align-items: center; gap: 12px;
}
.hero-chip.tr { top: 8%; right: -12px; animation: floatY 6s var(--e-io) infinite .4s; }
.hero-chip.bl { bottom: 10%; left: -16px; animation: floatY 7s var(--e-io) infinite; }
@keyframes floatY { 0%,100% { transform: translateY(0) rotate(-2deg); } 50% { transform: translateY(-14px) rotate(2deg); } }
.hero-chip b {
  font-size: 28px; line-height: 1; font-weight: 800;
  color: var(--amber-deep); letter-spacing: -.02em;
}
.hero-chip span { font-size: 11.5px; line-height: 1.45; color: var(--t-mid); display: block; font-weight: 600; }

/* 滚动提示 */
.scroll-hint {
  position: absolute; left: 50%; bottom: 92px; z-index: 3;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 10.5px; font-weight: 700; letter-spacing: .2em;
  text-transform: uppercase; color: var(--t-low);
}
.scroll-hint i {
  width: 3px; height: 38px; border-radius: 3px; background: var(--blue-soft);
  position: relative; overflow: hidden;
}
.scroll-hint i::after {
  content: ''; position: absolute; inset: 0; background: var(--amber);
  animation: scrollDown 2.1s var(--e-io) infinite;
}
@keyframes scrollDown {
  0%   { transform: translateY(-100%); }
  60%  { transform: translateY(100%); }
  100% { transform: translateY(100%); }
}

/* ============ 6. 宣言 + 能力 ============ */
/* 编辑感宣言区：大字 + 衬线斜体，杂志气质 */
.manifesto { padding: var(--sec-y) 0; position: relative; }
.manifesto .d2 em {
  font-family: var(--serif); font-style: italic; font-weight: 400;
  color: var(--amber-deep); letter-spacing: 0;
}
.manifesto-note {
  display: grid; grid-template-columns: auto minmax(0, 1fr);
  gap: 0 clamp(28px, 5vw, 80px);
  margin-top: clamp(38px, 5vw, 64px); padding-top: clamp(28px, 3.4vw, 40px);
  border-top: 3px dashed var(--blue-line);
}
.manifesto-note .lead { max-width: 56ch; }

/* 能力卡：白底圆角块 + 彩色圆形序号 */
.caps { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(14px, 1.5vw, 20px); }
.cap {
  background: #fff; padding: clamp(26px, 3vw, 38px) clamp(22px, 2.4vw, 30px);
  border-radius: var(--r-lg);
  box-shadow: 0 3px 0 rgba(79,163,227,.10), 0 12px 28px rgba(79,163,227,.10);
  transition: transform .4s var(--e-out), box-shadow .4s var(--e-out);
  position: relative; overflow: hidden;
}
.cap:nth-child(1) { box-shadow: 0 3px 0 rgba(79,163,227,.12), 0 12px 28px rgba(79,163,227,.12); }
.cap:nth-child(2) { box-shadow: 0 3px 0 rgba(247,169,59,.16), 0 12px 28px rgba(247,169,59,.14); }
.cap:nth-child(3) { box-shadow: 0 3px 0 rgba(242,120,159,.14), 0 12px 28px rgba(242,120,159,.12); }
.cap:nth-child(4) { box-shadow: 0 3px 0 rgba(95,201,176,.16), 0 12px 28px rgba(95,201,176,.14); }
.cap:hover { transform: translateY(-6px); }
.cap:nth-child(1):hover { box-shadow: 0 6px 0 rgba(79,163,227,.16), 0 22px 44px rgba(79,163,227,.2); }
.cap:nth-child(2):hover { box-shadow: 0 6px 0 rgba(247,169,59,.2), 0 22px 44px rgba(247,169,59,.2); }
.cap:nth-child(3):hover { box-shadow: 0 6px 0 rgba(242,120,159,.18), 0 22px 44px rgba(242,120,159,.18); }
.cap:nth-child(4):hover { box-shadow: 0 6px 0 rgba(95,201,176,.2), 0 22px 44px rgba(95,201,176,.2); }
.cap-no {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--blue-wash); color: var(--blue-deep);
  font-size: 16px; font-weight: 800; letter-spacing: 0;
  margin-bottom: 20px;
}
.cap:nth-child(2) .cap-no { background: var(--amber-wash); color: var(--amber-deep); }
.cap:nth-child(3) .cap-no { background: var(--rose-wash); color: #D9557F; }
.cap:nth-child(4) .cap-no { background: var(--mint-wash); color: #33A38C; }
.cap h3 { margin-bottom: .45em; }
.cap p { font-size: 14.5px; color: var(--t-mid); }

/* 数据条：彩色圆角块 */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 1.4vw, 18px);
}
.stat {
  background: #fff; padding: clamp(24px, 3vw, 34px) 20px;
  border-radius: var(--r-lg); text-align: center;
  box-shadow: 0 3px 0 rgba(79,163,227,.10), 0 10px 26px rgba(79,163,227,.10);
  transition: transform .4s var(--e-out), box-shadow .4s var(--e-out);
}
.stat:hover { transform: translateY(-5px) rotate(-1.5deg); box-shadow: 0 6px 0 rgba(79,163,227,.14), 0 18px 38px rgba(79,163,227,.16); }
.stat b {
  display: block; font-size: clamp(28px, 3.4vw, 42px); font-weight: 800;
  letter-spacing: -.02em; line-height: 1; color: var(--blue);
  font-variant-numeric: tabular-nums;
}
.stat:nth-child(2) b { color: var(--amber-deep); }
.stat:nth-child(3) b { color: #D9557F; }
.stat:nth-child(4) b { color: #33A38C; }
.stat b i { font-style: normal; font-size: .4em; margin-left: .16em; letter-spacing: 0; color: var(--t-low); }
.stat span { display: block; margin-top: 12px; font-size: 13px; color: var(--t-mid); font-weight: 600; }

/* ============ 7. 产品矩阵 ============ */
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 1.8vw, 26px); }
.pcard {
  position: relative; background: #fff;
  border-radius: var(--r-lg); overflow: hidden;
  display: flex; flex-direction: column;
  box-shadow: 0 4px 0 rgba(79,163,227,.10), 0 14px 32px rgba(79,163,227,.12);
  transition: transform .45s var(--e-out), box-shadow .45s var(--e-out);
  will-change: transform;
}
.pcard:hover { box-shadow: 0 8px 0 rgba(79,163,227,.16), 0 26px 52px rgba(79,163,227,.20); }
.pcard-media {
  position: relative; overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(150deg, var(--blue-wash) 0%, #fff 58%, var(--cream-2) 100%);
  display: flex; align-items: center; justify-content: center;
  padding: 9% 8%;
}
.pcard-media img {
  width: 100%; height: 100%; object-fit: contain;
  transition: transform .8s var(--e-out);
  filter: drop-shadow(0 8px 14px rgba(43,58,74,.16));
}
.pcard:hover .pcard-media img { transform: scale(1.07) translateY(-4px); }
/* 底部波浪纹理 */
.pcard-media::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 22px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 20' preserveAspectRatio='none'%3E%3Cpath d='M0 12c15 0 15-8 30-8s15 8 30 8 15-8 30-8 15 8 30 8v8H0z' fill='%23EAF6FE'/%3E%3C/svg%3E") no-repeat bottom / 100% 100%;
  opacity: .9;
}
.pcard-badge {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  padding: .48em 1.1em; border-radius: var(--r-pill);
  background: var(--amber); color: #fff;
  font-size: 12px; font-weight: 700; letter-spacing: .02em;
  box-shadow: 0 3px 0 var(--amber-deep);
}
.pcard-body { padding: clamp(22px, 2.2vw, 30px); flex: 1; display: flex; flex-direction: column; }
.pcard-cat {
  font-size: 11.5px; font-weight: 700; letter-spacing: .1em;
  color: var(--blue); background: var(--blue-wash);
  padding: .35em .85em; border-radius: var(--r-pill);
  align-self: flex-start;
}
.pcard-body h3 { font-size: 19px; margin: 12px 0 8px; letter-spacing: 0; }
.pcard-body > p { font-size: 13.5px; color: var(--t-mid); margin-bottom: 16px; }
.feat { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.feat li {
  font-size: 12.5px; padding: .38em .85em; border-radius: var(--r-pill);
  background: var(--cream-2); color: var(--t-mid); font-weight: 600;
  transition: background .3s, color .3s;
}
.pcard:hover .feat li:nth-child(1) { background: var(--blue-wash); color: var(--blue-deep); }
.pcard-cta {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between;
  padding-top: 16px; border-top: 3px dashed var(--line);
  font-size: 14px; font-weight: 700; color: var(--blue-deep);
  transition: color .3s, border-color .3s;
}
.pcard-cta .arw { transition: transform .45s var(--e-out); color: var(--amber-deep); }
.pcard:hover .pcard-cta { color: var(--amber-deep); border-color: var(--amber-soft, #FFD79A); }
.pcard:hover .pcard-cta .arw { transform: translate(5px, -5px); }

/* 悬停跟随光斑 */
.pcard-glow {
  position: absolute; inset: 0; border-radius: inherit; z-index: 3;
  pointer-events: none; opacity: 0; transition: opacity .45s;
  background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(247,169,59,.14), transparent 62%);
}
.pcard:hover .pcard-glow { opacity: 1; }

/* 参数表 */
.spec-wrap {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
}
table.spec { width: 100%; border-collapse: collapse; }
table.spec th {
  text-align: left; padding: 20px clamp(18px, 2vw, 28px);
  font-size: 10.5px; font-weight: 600; letter-spacing: .18em;
  text-transform: uppercase; color: var(--t-low);
  background: var(--cream-2); border-bottom: 1px solid var(--line);
}
table.spec td {
  padding: 22px clamp(18px, 2vw, 28px);
  font-size: 14.5px; border-bottom: 1px solid var(--line);
  transition: background .3s;
}
table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec tbody tr:hover td { background: var(--cream-2); }
table.spec td:first-child { font-weight: 600; letter-spacing: -.01em; }
.spec-note { font-size: 12.5px; color: var(--t-low); margin-top: 20px; text-align: center; }

/* ============ 8. 服务 / 流程 / 认证 / FAQ ============ */
.svcs { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 1.8vw, 24px); }
.svc {
  position: relative; overflow: hidden;
  background: #fff; border-radius: var(--r-lg);
  padding: clamp(28px, 3.2vw, 42px);
  box-shadow: 0 4px 0 rgba(79,163,227,.10), 0 14px 34px rgba(79,163,227,.12);
  transition: transform .45s var(--e-out), box-shadow .45s var(--e-out);
}
.svc:nth-child(1) { box-shadow: 0 4px 0 rgba(79,163,227,.14), 0 14px 34px rgba(79,163,227,.14); }
.svc:nth-child(2) { box-shadow: 0 4px 0 rgba(247,169,59,.18), 0 14px 34px rgba(247,169,59,.16); }
.svc:nth-child(3) { box-shadow: 0 4px 0 rgba(242,120,159,.16), 0 14px 34px rgba(242,120,159,.14); }
.svc:nth-child(4) { box-shadow: 0 4px 0 rgba(95,201,176,.18), 0 14px 34px rgba(95,201,176,.16); }
.svc:hover { transform: translateY(-6px); }
.svc:nth-child(1):hover { box-shadow: 0 8px 0 rgba(79,163,227,.2), 0 26px 52px rgba(79,163,227,.22); }
.svc:nth-child(2):hover { box-shadow: 0 8px 0 rgba(247,169,59,.24), 0 26px 52px rgba(247,169,59,.24); }
.svc:nth-child(3):hover { box-shadow: 0 8px 0 rgba(242,120,159,.2), 0 26px 52px rgba(242,120,159,.2); }
.svc:nth-child(4):hover { box-shadow: 0 8px 0 rgba(95,201,176,.24), 0 26px 52px rgba(95,201,176,.24); }
/* 右上角暖色光晕 */
.svc::before {
  content: ''; position: absolute; top: 0; right: 0;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, var(--amber-wash), transparent 68%);
  transform: translate(50%, -50%); opacity: .6;
  transition: opacity .6s var(--e-out), transform .8s var(--e-out);
}
.svc:hover::before { opacity: 1; transform: translate(38%, -38%); }
.svc-no {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 46px; height: 46px; padding: 0 .6em;
  border-radius: var(--r-pill);
  background: var(--blue-wash); color: var(--blue-deep);
  font-size: 16px; font-weight: 800; letter-spacing: 0;
  margin-bottom: 20px;
}
.svc:nth-child(2) .svc-no { background: var(--amber-wash); color: var(--amber-deep); }
.svc:nth-child(3) .svc-no { background: var(--rose-wash); color: #D9557F; }
.svc:nth-child(4) .svc-no { background: var(--mint-wash); color: #33A38C; }
.svc h3 { font-size: 21px; margin-bottom: .5em; letter-spacing: 0; }
.svc > p { font-size: 14.5px; color: var(--t-mid); margin-bottom: 24px; max-width: 44ch; }
.svc ul { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: relative; }
.svc li {
  display: flex; align-items: flex-start; gap: .7em;
  font-size: 13.5px; color: var(--t-mid); font-weight: 600;
}
.svc li::before {
  content: '✓'; width: 20px; height: 20px; margin-top: .18em;
  border-radius: 50%; background: var(--blue-wash); color: var(--blue-deep);
  font-size: 12px; font-weight: 800; line-height: 20px; text-align: center;
  flex-shrink: 0;
  transition: transform .4s var(--e-out), background .3s;
}
.svc:hover li::before { transform: scale(1.16); background: var(--blue); color: #fff; }

/* 流程：左侧吸附，右侧渐进揭示 */
.proc { display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 1fr); gap: clamp(32px, 5vw, 96px); }
.proc-aside { position: sticky; top: 128px; align-self: start; }
.proc-aside .h2 { margin: .35em 0 .5em; }
.proc-list { counter-reset: p; }
.proc-list li {
  position: relative; counter-increment: p;
  padding: clamp(22px, 2.6vw, 32px) 0 clamp(22px, 2.6vw, 32px) clamp(56px, 5vw, 76px);
  border-top: 3px dashed var(--line-2);
  transition: background .4s;
}
.proc-list li:last-child { border-bottom: 3px dashed var(--line-2); }
.proc-list li:hover { background: var(--cream-2); }
/* 序号改为彩色圆 */
.proc-list li::before {
  content: '0' counter(p);
  position: absolute; left: 0; top: clamp(20px, 2.4vw, 28px);
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--blue-wash); color: var(--blue-deep);
  font-size: 14px; font-weight: 800; letter-spacing: 0;
  display: flex; align-items: center; justify-content: center;
  /* z-index 抬起，让圆圈盖住穿过其后的连接线 */
  z-index: 1;
  transition: background .4s, color .4s, transform .4s var(--e-out);
}
.proc-list li.on::before {
  background: var(--amber); color: #fff;
  transform: scale(1.1) rotate(-6deg);
  /* 白色描边：旋转放大后仍能完全遮住身后的连接线 */
  box-shadow: 0 0 0 4px var(--cream);
}
/* 连接线：精确落在序号圆圈中心（圆圈 42px 宽 → 中心 21px，线宽 3px → 左偏移 19.5px） */
.proc-list li::after {
  content: ''; position: absolute; left: 19.5px; top: 0; bottom: 0; width: 3px;
  border-radius: 3px; background: var(--line-2);
  transform: scaleY(0); transform-origin: top;
  transition: transform .8s var(--e-out);
}
.proc-list li.on::after { transform: scaleY(1); }
.proc-list b {
  display: block; font-size: clamp(18px, 1.7vw, 22px);
  font-weight: 700; letter-spacing: 0; margin-bottom: .4em;
  transition: transform .45s var(--e-out);
}
.proc-list li:hover b { transform: translateX(6px); }
.proc-list p { font-size: 14.5px; color: var(--t-mid); max-width: 46ch; }

/* 认证徽标墙：白底圆角格 + 彩色徽章圆 */
.certs { display: grid; grid-template-columns: repeat(6, 1fr); gap: clamp(10px, 1.2vw, 16px); }
.cert {
  background: #fff; aspect-ratio: 1;
  border-radius: var(--r);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  box-shadow: 0 3px 0 rgba(79,163,227,.10), 0 8px 20px rgba(79,163,227,.10);
  transition: transform .4s var(--e-out), box-shadow .4s, background .4s;
}
.cert:hover { transform: translateY(-5px) scale(1.04); background: var(--blue-wash); box-shadow: 0 6px 0 rgba(79,163,227,.16), 0 18px 34px rgba(79,163,227,.18); }
.cert b { font-size: clamp(15px, 1.5vw, 19px); color: var(--blue-deep); letter-spacing: 0; font-weight: 800; }
.cert span { font-size: 10px; color: var(--t-low); letter-spacing: .1em; font-weight: 600; }

/* 历程 */
.ms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.ms li { padding: 0 clamp(18px, 2vw, 30px); border-left: 3px dashed var(--line-2); position: relative; }
.ms li::before {
  content: ''; position: absolute; left: -8px; top: 10px;
  width: 13px; height: 13px; border-radius: 50%; background: var(--amber);
  box-shadow: 0 0 0 4px var(--cream);
  transition: transform .45s var(--e-out), background .3s;
}
.ms li:hover::before { transform: scale(1.35); background: var(--blue); }
.ms b {
  display: block; font-size: clamp(24px, 2.6vw, 34px); font-weight: 800;
  color: var(--blue); letter-spacing: -.02em; line-height: 1;
  margin-bottom: 12px; font-variant-numeric: tabular-nums;
}
.ms:nth-child(2) b { color: var(--amber-deep); }
.ms:nth-child(3) b { color: #D9557F; }
.ms:nth-child(4) b { color: #33A38C; }
.ms span { font-size: 14px; color: var(--t-mid); }

/* FAQ 折叠 */
.faq { max-width: 880px; margin: 0 auto; }
.faq details {
  background: #fff; border-radius: var(--r);
  margin-bottom: 12px;
  box-shadow: 0 3px 0 rgba(79,163,227,.09), 0 8px 22px rgba(79,163,227,.10);
  overflow: hidden;
  transition: box-shadow .4s var(--e-out);
}
.faq details[open] { box-shadow: 0 5px 0 rgba(79,163,227,.14), 0 18px 40px rgba(79,163,227,.16); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  padding: clamp(20px, 2.4vw, 28px) clamp(22px, 2.4vw, 30px); list-style: none;
  font-size: clamp(16px, 1.5vw, 19px); font-weight: 700; letter-spacing: 0;
  cursor: pointer; transition: color .3s, background .3s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--blue-deep); }
.faq .sign {
  position: relative; width: 30px; height: 30px; flex-shrink: 0;
  border-radius: 50%; background: var(--blue-wash);
  transition: background .35s, transform .45s var(--e-out);
}
.faq summary:hover .sign { background: var(--blue); transform: rotate(90deg); }
.faq .sign::before, .faq .sign::after {
  content: ''; position: absolute; left: 50%; top: 50%;
  width: 13px; height: 2.5px; border-radius: 3px;
  background: var(--blue-deep);
  transition: transform .45s var(--e-out), background .3s;
}
.faq .sign::before { transform: translate(-50%, -50%); }
.faq .sign::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq summary:hover .sign::before, .faq summary:hover .sign::after { background: #fff; }
.faq details[open] .sign { background: var(--amber); transform: rotate(180deg); }
.faq details[open] .sign::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq details[open] .sign::before, .faq details[open] .sign::after { background: #fff; }
.faq details[open] summary { color: var(--blue-deep); }
/* 折叠动画：借助 grid 行数过渡 */
.faq .ans-wrap { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .55s var(--e-out); }
.faq details[open] .ans-wrap { grid-template-rows: 1fr; }
.faq .ans { overflow: hidden; }
/* 答案左右内边距与 summary 对齐，让文字不贴边 */
.faq .ans-in {
  padding: 0 clamp(22px, 2.4vw, 30px) clamp(24px, 2.6vw, 34px);
  font-size: 15px; color: var(--t-mid); max-width: 68ch;
}

/* CTA 条 */
.cta-band {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: #fff;
  border-radius: var(--r-xl);
  padding: clamp(44px, 6vw, 76px);
  display: flex; align-items: center; justify-content: space-between;
  gap: clamp(32px, 4vw, 64px); flex-wrap: wrap;
  box-shadow: 0 6px 0 var(--blue-deep), 0 26px 60px rgba(44,127,192,.28);
}
.cta-band::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(700px 400px at 88% 12%, rgba(255,255,255,.22), transparent 62%);
  pointer-events: none;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band .d2 { color: #fff; max-width: 16ch; }
.cta-band p { margin-top: 18px; color: var(--t-inv-mid); max-width: 48ch; font-size: 15.5px; }

/* ============ 9. 表单与联系 ============ */
.form-shell {
  background: #fff;
  border-radius: var(--r-lg); padding: clamp(28px, 3.4vw, 52px);
  box-shadow: 0 4px 0 rgba(79,163,227,.10), 0 16px 40px rgba(79,163,227,.14);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px clamp(16px, 1.8vw, 24px); }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label {
  font-size: 13px; font-weight: 700; letter-spacing: 0;
  color: var(--t-mid);
}
.field label i { color: var(--rose); font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 18px;
  border: 2px solid var(--line); border-radius: var(--r-sm);
  background: var(--cream); color: var(--ink);
  font-family: inherit; font-size: 15px; line-height: 1.5; font-weight: 600;
  transition: border-color .3s, box-shadow .3s, background .3s;
  outline: none; -webkit-appearance: none; appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' fill='none' stroke='%232C7FC0' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m1 1 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 18px center;
  padding-right: 44px; cursor: pointer;
}
.field textarea { resize: vertical; min-height: 132px; }
.field input::placeholder, .field textarea::placeholder { color: var(--t-faint); font-weight: 400; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--blue); background: #fff;
  box-shadow: 0 3px 0 rgba(79,163,227,.18);
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--blue-soft); }
.form-foot {
  grid-column: 1 / -1; display: flex; align-items: center;
  justify-content: space-between; gap: 24px; flex-wrap: wrap;
  padding-top: 6px;
}
.form-note { font-size: 12.5px; color: var(--t-low); max-width: 46ch; line-height: 1.7; }
.form-msg {
  grid-column: 1 / -1; margin: 0; padding: 15px 19px;
  border-radius: var(--r-sm); font-size: 14.5px; font-weight: 600;
  display: none; align-items: center; gap: 10px;
}
.form-msg.ok { display: flex; background: var(--mint-wash); color: #1E8A72; box-shadow: inset 0 0 0 2px #A5E5D7; }
.form-msg.err { display: flex; background: var(--rose-wash); color: #C74A72; box-shadow: inset 0 0 0 2px #F5C0CE; }
.form-msg::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex-shrink: 0; }

/* 联系方式 4 项 → 2×2 排布，避免第四张落单 */
.ct-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 1.8vw, 24px); }
.ct {
  position: relative; overflow: hidden;
  background: #fff; border-radius: var(--r-lg);
  padding: clamp(28px, 3vw, 40px);
  box-shadow: 0 4px 0 rgba(79,163,227,.10), 0 14px 34px rgba(79,163,227,.12);
  transition: transform .45s var(--e-out), box-shadow .45s var(--e-out);
}
.ct:nth-child(1) { box-shadow: 0 4px 0 rgba(79,163,227,.14), 0 14px 34px rgba(79,163,227,.14); }
.ct:nth-child(2) { box-shadow: 0 4px 0 rgba(247,169,59,.18), 0 14px 34px rgba(247,169,59,.16); }
.ct:nth-child(3) { box-shadow: 0 4px 0 rgba(95,201,176,.18), 0 14px 34px rgba(95,201,176,.16); }
.ct:nth-child(4) { box-shadow: 0 4px 0 rgba(242,120,159,.16), 0 14px 34px rgba(242,120,159,.14); }
a.ct:hover { transform: translateY(-6px); }
.ct:nth-child(1):hover { box-shadow: 0 8px 0 rgba(79,163,227,.2), 0 26px 52px rgba(79,163,227,.22); }
.ct:nth-child(2):hover { box-shadow: 0 8px 0 rgba(247,169,59,.24), 0 26px 52px rgba(247,169,59,.24); }
.ct:nth-child(3):hover { box-shadow: 0 8px 0 rgba(95,201,176,.24), 0 26px 52px rgba(95,201,176,.24); }
.ct:nth-child(4):hover { box-shadow: 0 8px 0 rgba(242,120,159,.2), 0 26px 52px rgba(242,120,159,.2); }
.ct-ico {
  width: 54px; height: 54px; border-radius: 50%;
  background: var(--blue-wash); color: var(--blue);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 24px;
  transition: background .4s var(--e-out), color .3s, transform .5s var(--e-out);
}
.ct:nth-child(2) .ct-ico { background: var(--amber-wash); color: var(--amber-deep); }
.ct:nth-child(3) .ct-ico { background: var(--mint-wash); color: #33A38C; }
.ct:nth-child(4) .ct-ico { background: var(--rose-wash); color: #D9557F; }
.ct-ico svg { width: 23px; height: 23px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.ct:hover .ct-ico { background: var(--blue); color: #fff; transform: rotate(-10deg) scale(1.08); }
.ct:nth-child(2):hover .ct-ico { background: var(--amber); }
.ct:nth-child(3):hover .ct-ico { background: var(--mint); }
.ct:nth-child(4):hover .ct-ico { background: var(--rose); }
.ct label {
  display: block; font-size: 13px; font-weight: 700;
  letter-spacing: 0; color: var(--blue); margin-bottom: 8px;
}
.ct b {
  display: block; font-size: clamp(15px, 1.4vw, 17px); font-weight: 700;
  letter-spacing: 0; margin-bottom: 7px; word-break: break-word;
  transition: color .3s;
}
.ct:hover b { color: var(--amber-deep); }
.ct span { font-size: 13px; color: var(--t-mid); line-height: 1.65; }

/* 信息表（关于我们） */
.info-table { width: 100%; border-collapse: collapse; }
.info-table tr { border-bottom: 1px solid var(--line); }
.info-table tr:last-child { border-bottom: 0; }
.info-table th {
  text-align: left; padding: 22px 0; width: clamp(100px, 14vw, 180px);
  font-size: 11.5px; font-weight: 600; letter-spacing: .14em;
  text-transform: uppercase; color: var(--t-low); vertical-align: top;
}
.info-table td { padding: 22px 0; font-size: 15px; letter-spacing: -.005em; }
.info-table tr { transition: background .35s; }
.info-table tbody tr:hover { background: var(--cream-2); }

.vals { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(16px, 1.6vw, 24px); }
.val {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--r-lg); padding: clamp(30px, 3.2vw, 44px);
  transition: transform .5s var(--e-out), box-shadow .5s, border-color .4s;
}
.val:hover { transform: translateY(-5px); box-shadow: var(--sh); border-color: transparent; }
.val b { display: block; font-size: clamp(17px, 1.6vw, 20px); margin-bottom: .6em; letter-spacing: -.02em; }
.val p { font-size: 14.5px; color: var(--t-mid); }

/* 页头：明亮蓝底 + 底部波浪 */
.phero {
  position: relative; overflow: hidden;
  padding: clamp(130px, 14vw, 176px) 0 clamp(70px, 8vw, 108px);
  background: linear-gradient(160deg, var(--blue-soft) 0%, var(--blue-wash) 52%, var(--cream-2) 100%);
  color: var(--ink);
}
.phero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(760px 420px at 84% 6%, var(--amber-wash) 0%, transparent 60%),
    radial-gradient(620px 380px at 6% 88%, var(--rose-wash) 0%, transparent 58%);
}
.phero .wrap { position: relative; z-index: 1; }
.phero .d1 { color: var(--ink); margin: 22px 0 0; max-width: 18ch; }
.phero .d1 em { font-style: normal; color: var(--amber-deep); }
.phero .lead { margin: 24px 0 0; max-width: 56ch; }
.crumb {
  display: inline-flex; align-items: center; gap: .6em;
  font-size: 13px; font-weight: 700; letter-spacing: 0;
  color: var(--blue-deep);
  background: #fff; padding: .5em 1.1em;
  border-radius: var(--r-pill);
  box-shadow: 0 2px 0 rgba(79,163,227,.12);
}
.crumb a { transition: color .3s; }
.crumb a:hover { color: var(--amber-deep); }
.crumb i { font-style: normal; color: var(--t-faint); }

/* 双栏图文 */
.about-in {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  gap: clamp(40px, 5.5vw, 96px); align-items: center;
}
.about-visual { position: relative; }
.about-visual img {
  width: 100%; border-radius: var(--r-xl);
  background: linear-gradient(158deg, var(--paper-2), var(--paper-3));
  padding: 9% 7%;
  box-shadow: var(--sh-lg);
}
.about-visual::before {
  content: ''; position: absolute; inset: 0;
  border: 1px solid var(--line); border-radius: var(--r-xl);
  transform: translate(18px, 18px); z-index: -1;
}

/* ============ 10. 页脚 ============
   改为浅色圆角区（与整体明亮风格一致），底部蓝色波浪收尾 */
.ftr {
  position: relative;
  background: var(--cream-2); color: var(--t-mid);
  padding: clamp(56px, 6vw, 88px) 0 32px;
  margin-top: 0;
}
.ftr-top {
  display: grid; grid-template-columns: minmax(0, 1.5fr) repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 4vw, 64px);
  padding-bottom: clamp(38px, 4.4vw, 56px);
  border-bottom: 3px dashed var(--blue-line);
}
.ftr-logo { height: 46px; width: auto; margin-bottom: 22px; }
.ftr-lead { font-size: 14.5px; max-width: 38ch; line-height: 1.8; }
.ftr h4 {
  color: var(--blue-deep); font-size: 13px; font-weight: 700;
  letter-spacing: .06em; margin-bottom: 20px;
}
.ftr-links a {
  display: inline-block; padding: 6px 14px 6px 0; font-size: 14.5px; font-weight: 600;
  color: var(--t-mid);
  transition: color .3s, transform .4s var(--e-out);
}
.ftr-links a:hover { color: var(--amber-deep); transform: translateX(5px); }
.ftr-addr { font-size: 14px; line-height: 1.8; margin-top: 12px; max-width: 32ch; }
.ftr-bot {
  padding-top: clamp(22px, 2.6vw, 32px); margin-top: clamp(24px, 2.8vw, 36px);
  border-top: 3px dashed var(--blue-line);
  display: flex; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
  font-size: 12.5px; color: var(--t-low); font-weight: 600;
}
/* 页脚图标条 + slogan */
.ftr-catbar { padding-top: clamp(34px, 4vw, 52px); }
.ftr-bot a { transition: color .3s; }
.ftr-bot a:hover { color: var(--blue-deep); }

/* 返回顶部：圆胖彩色按钮 */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 800;
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--amber); color: #fff;
  border: 0; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity .4s, visibility .4s, transform .5s var(--e-out), background .3s;
  box-shadow: 0 4px 0 var(--amber-deep), 0 12px 26px rgba(247,169,59,.3);
}
.to-top.on { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--amber-deep); transform: translateY(-3px); }
.to-top svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2.4; }

/* ============ 11. 动效系统 ============ */
/* 行遮罩上推：主要标题的入场 */
.lm { display: block; overflow: hidden; padding-bottom: .08em; margin-bottom: -.08em; }
.lm > span {
  display: block; transform: translateY(112%);
  transition: transform 1.15s var(--e-out);
  transition-delay: var(--d, 0s);
}
.in .lm > span, .lm.in > span, .lm.rv-in > span { transform: translateY(0); }

/* 通用淡入上移 */
.js [data-rv] {
  opacity: 0; transform: translateY(26px);
  transition: opacity .95s var(--e-out), transform 1.05s var(--e-out);
  transition-delay: var(--d, 0s);
}
.js [data-rv].rv-in { opacity: 1; transform: none; }
.js [data-rv="fade"] { transform: none; }
.js [data-rv="scale"] { transform: translateY(26px) scale(.965); }
.js [data-rv="scale"].rv-in { transform: none; }
/* 左上角擦除，用于边框装饰 */
.js [data-rv="wipe"] { clip-path: inset(0 100% 0 0); opacity: 1; transform: none; transition: clip-path 1.1s var(--e-out); transition-delay: var(--d, 0s); }
.js [data-rv="wipe"].rv-in { clip-path: inset(0 0 0 0); }

/* 数字滚动：由 main.js 写入最终值 */
[data-count] { font-variant-numeric: tabular-nums; }

/* 页面载入淡入 */
.js body { opacity: 0; transition: opacity .6s ease; }
.js body.ready { opacity: 1; }

/* 分割线绘制 */
.js .rule { transform: scaleX(0); transform-origin: left; transition: transform 1.4s var(--e-out); transition-delay: var(--d, 0s); }
.js .rule.in { transform: scaleX(1); }

/* 减少动效 */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js [data-rv] { opacity: 1; transform: none; clip-path: none; }
  .lm > span { transform: none; }
  .cur, .cur-dot, .grain { display: none; }
}

/* ============ 12. 响应式 ============ */
@media (max-width: 1180px) {
  .hero-in { grid-template-columns: minmax(0, 1fr) minmax(0, .78fr); }
  .pgrid { grid-template-columns: repeat(2, 1fr); }
  .caps { grid-template-columns: repeat(2, 1fr); }
  .certs { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 980px) {
  .sec-head-row { grid-template-columns: 1fr; gap: 22px; align-items: start; }
  .hero { min-height: auto; padding: 128px 0 88px; }
  .hero-in { grid-template-columns: 1fr; gap: 52px; }
  .hero-fig { max-width: 440px; margin: 0 auto; width: 100%; }
  .hero-frame { aspect-ratio: 1; padding: 6% 5%; }
  .hero-frame img { filter: brightness(1.08) contrast(1.01); }
  /* 浮动卡片移到框外，避免遮挡主体 */
  .hero-chip { padding: 12px 15px; border-radius: var(--r-sm); }
  .hero-chip b { font-size: 22px; }
  .hero-chip span { font-size: 10.5px; }
  .hero-chip.tr { top: -14px; right: -6px; }
  .hero-chip.bl { bottom: -14px; left: -6px; }
  .scroll-hint { display: none; }
  .about-in { grid-template-columns: 1fr; gap: 48px; }
  .about-visual { max-width: 440px; }
  .proc { grid-template-columns: 1fr; gap: 36px; }
  .proc-aside { position: static; }
  .manifesto-note { grid-template-columns: 1fr; gap: 24px; }
  .ms { grid-template-columns: 1fr 1fr; gap: 40px 0; }
  .ftr-top { grid-template-columns: 1fr 1fr; }
  .ftr-lead { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  body { font-size: 15px; }
  .hdr-in { height: 68px; }
  .brand-mark { height: 34px; }
  .nav {
    position: fixed; inset: 68px 0 auto; z-index: 899;
    background: rgba(250,249,247,.97);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch;
    padding: 16px var(--gut) 28px; gap: 2px;
    display: flex; transform: translateY(-8px); opacity: 0;
    pointer-events: none; visibility: hidden;
    transition: transform .5s var(--e-out), opacity .35s, visibility .35s;
    max-height: calc(100vh - 68px); overflow-y: auto;
  }
  /* 菜单为浅色面板，文字必须回到深色，优先级高于深色 hero 场景 */
  .hdr .nav,
  .hdr:not(.stuck) .nav {
    color: var(--t-hi);
  }
  .hdr .nav a,
  .hdr:not(.stuck) .nav a {
    color: var(--t-hi);
    font-size: 16px; border-bottom: 1px solid var(--line);
    border-radius: 0; padding: 14px 4px;
  }
  .hdr .nav a.on,
  .hdr:not(.stuck) .nav a.on { color: var(--brand); }
  .hdr:not(.stuck) .burger span { background: var(--ink); }
  .hdr .nav-cta,
  .hdr:not(.stuck) .nav-cta { background: var(--ink) !important; color: #fff !important; }
  .hdr.stuck .nav { border-bottom-color: var(--line); }
  .nav.open { transform: none; opacity: 1; pointer-events: auto; visibility: visible; }
  .nav a::after { display: none; }
  .nav-cta {
    margin: 14px 0 0; text-align: center; border: 0;
    border-radius: 100px; padding: 15px 24px !important;
  }
  .burger { display: block; }

  .pgrid { grid-template-columns: 1fr; }
  .caps { grid-template-columns: 1fr; }
  .svcs { grid-template-columns: 1fr; }
  .svc ul { grid-template-columns: 1fr; }
  .vals { grid-template-columns: 1fr; }
  .ct-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .certs { grid-template-columns: repeat(3, 1fr); }
  .ms { grid-template-columns: 1fr; gap: 30px; }
  .ms li { padding-left: 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-foot { flex-direction: column; align-items: stretch; }
  .form-foot .btn { width: 100%; }
  .cta-band { border-radius: var(--r-lg); }
  .cta-band .btn { width: 100%; }
  .table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 calc(var(--gut) * -1); padding: 0 var(--gut); }
  table.spec { min-width: 620px; }
  .ftr-top { grid-template-columns: 1fr; gap: 34px; }
  .ftr-bot { flex-direction: column; gap: 8px; }
  .to-top { right: 16px; bottom: 16px; width: 44px; height: 44px; }
  .hero-tags { gap: 8px 18px; }
}

@media (max-width: 420px) {
  .certs { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: 1fr; }
  .btn { width: 100%; }
  .hero-cta { flex-direction: column; }
}

/* 打印 */
@media print {
  .hdr, .to-top, .cur, .cur-dot, .grain, .scroll-prog, .scroll-hint { display: none !important; }
  .hero, .phero, .ftr, .sec-ink, .cta-band, .stats, .certs { background: #fff !important; color: #000 !important; }
}