/* ============================================================
   myAvro — homepage redesign
   Layout & typography only. All copy carried over unchanged.
   ============================================================ */

/* ---------- 1. Tokens ---------- */
:root{
  /* brand — sampled from myavro.com + logo */
  --brand:        #25856F;
  --brand-deep:   #14604D;
  --brand-ink:    #0D3B31;
  --brand-mid:    #35B597;
  --brand-bright: #32E6BC;

  /* neutrals */
  --ink:       #0B1F1A;
  --ink-2:     #17332C;
  --body:      #4E635E;
  --muted:     #7B918B;
  --line:      #DEEAE6;
  --line-2:    #C8DBD5;
  --pale:      #E9F5F1;
  --wash:      #F4FAF8;
  --white:     #FFFFFF;

  /* type */
  --ff-display:"Instrument Sans", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ff-body:   "Inter", ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* layout */
  --maxw: 1240px;
  --gut: 32px;
  --sec-y: clamp(72px, 8.5vw, 130px);

  /* misc */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--white);
  color:var(--ink);
  font-family:var(--ff-body);
  font-size:17px;
  line-height:1.72;
  font-weight:400;
  letter-spacing:-0.003em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
img{ display:block; max-width:100%; height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }
h1,h2,h3,h4,p,figure{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
strong{ font-weight:600; }
::selection{ background:var(--brand-bright); color:var(--ink); }

/* focus */
:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:3px;
  border-radius:3px;
}

/* ---------- 3. Layout primitives ---------- */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin-inline:auto;
  padding-inline:var(--gut);
}
.wrap--narrow{ max-width:900px; }
.section{ padding-block:var(--sec-y); position:relative; }
.eyebrow{
  display:block;
  font-family:var(--ff-display);
  font-size:11.5px;
  font-weight:600;
  line-height:1.65;
  letter-spacing:.155em;
  text-transform:uppercase;
  color:var(--brand);
  max-width:62ch;
}
.eyebrow::before{
  content:"";
  display:block;
  width:28px;
  height:2px;
  background:var(--brand-mid);
  margin-bottom:16px;
  border-radius:2px;
}

.h-display{
  font-family:var(--ff-display);
  font-weight:600;
  letter-spacing:-0.028em;
  line-height:1.04;
  color:var(--ink);
  font-size:clamp(38px, 5.3vw, 67px);
  max-width:20ch;
  text-wrap:balance;
}
.h-section{
  font-family:var(--ff-display);
  font-weight:600;
  letter-spacing:-0.025em;
  line-height:1.1;
  color:var(--ink);
  font-size:clamp(30px, 3.7vw, 47px);
  max-width:22ch;
  text-wrap:balance;
}
.lede{
  color:var(--body);
  font-size:clamp(16.5px, 1.15vw, 18.5px);
  line-height:1.74;
  max-width:60ch;
}
.p-body{
  color:var(--body);
  font-size:17px;
  line-height:1.74;
}

/* ---------- 4. Buttons ---------- */
.btn{
  --bg:var(--brand);
  --fg:#fff;
  --bd:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-family:var(--ff-display);
  font-size:14.5px;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1;
  padding:16px 26px;
  border-radius:var(--r-sm);
  background:var(--bg);
  color:var(--fg);
  border:1px solid var(--bd);
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  will-change:transform;
}
.btn svg{ flex:none; transition:transform .3s var(--ease); }
.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 28px -12px rgba(20,96,77,.55);
}
.btn:hover svg{ transform:translateX(3px); }
.btn:active{ transform:translateY(0); }

.btn--primary{ --bg:var(--brand-deep); --bd:var(--brand-deep); }
.btn--primary:hover{ --bg:var(--brand); --bd:var(--brand); }

.btn--ghost{
  --bg:transparent; --bd:var(--line-2); --fg:var(--ink);
}
.btn--ghost:hover{ --bd:var(--brand); --fg:var(--brand-deep); box-shadow:none; }

.btn--onDark{ --bg:var(--brand-bright); --bd:var(--brand-bright); --fg:var(--ink); }
.btn--onDark:hover{ --bg:#fff; --bd:#fff; }

.btn--sm{ padding:12px 20px; font-size:13.5px; }

/* ---------- 5. Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.site-header.is-stuck{
  border-bottom-color:var(--line);
  box-shadow:0 6px 26px -22px rgba(11,31,26,.5);
}
.hdr-inner{
  display:flex;
  align-items:center;
  gap:clamp(18px, 3vw, 46px);
  min-height:82px;
}
.brand{ display:flex; align-items:center; flex:none; }
.brand img{ height:46px; width:auto; }
.brand-name{
  font-family:var(--ff-display);
  font-size:19px;
  font-weight:700;
  letter-spacing:-.02em;
  color:var(--ink);
  margin-left:11px;
}

.nav{ margin-left:auto; }
.nav-list{ display:flex; align-items:center; gap:clamp(4px,1.5vw,22px); }
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-family:var(--ff-display);
  font-size:13px;
  font-weight:600;
  letter-spacing:.075em;
  text-transform:uppercase;
  color:var(--ink-2);
  padding:10px 2px;
  white-space:nowrap;
  transition:color .22s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:2px; right:2px; bottom:4px;
  height:1.5px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-link:hover{ color:var(--brand-deep); }
.nav-link:hover::after{ transform:scaleX(1); }
.nav-link[aria-current="page"]{ color:var(--brand-deep); }
.nav-link[aria-current="page"]::after{ transform:scaleX(1); }
.nav-item{ position:relative; }
.nav-caret{ transition:transform .3s var(--ease); opacity:.55; }
.nav-item:hover .nav-caret{ transform:rotate(180deg); opacity:1; }

.dropdown{
  position:absolute;
  top:calc(100% + 6px);
  left:50%;
  min-width:214px;
  transform:translateX(-50%) translateY(-6px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:8px;
  box-shadow:0 30px 60px -30px rgba(11,31,26,.4), 0 2px 6px -3px rgba(11,31,26,.12);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s var(--ease), transform .25s var(--ease), visibility .25s;
}
.nav-item:hover .dropdown,
.nav-item:focus-within .dropdown{
  opacity:1; visibility:visible;
  transform:translateX(-50%) translateY(0);
}
.dropdown a{
  display:block;
  font-family:var(--ff-display);
  font-size:14.5px;
  font-weight:500;
  color:var(--ink-2);
  padding:11px 14px;
  border-radius:var(--r-sm);
  transition:background .2s var(--ease), color .2s var(--ease);
}
.dropdown a:hover{ background:var(--pale); color:var(--brand-deep); }

.hdr-cta{ margin-left:clamp(10px,1.6vw,24px); flex:none; }
.burger{
  display:none;
  margin-left:auto;
  width:44px; height:44px;
  border:1px solid var(--line-2);
  border-radius:var(--r-sm);
  align-items:center;
  justify-content:center;
  flex:none;
}
.burger span{
  display:block;
  width:18px; height:1.8px;
  background:var(--ink);
  border-radius:2px;
  position:relative;
}
.burger span::before,
.burger span::after{
  content:""; position:absolute; left:0;
  width:18px; height:1.8px; background:var(--ink); border-radius:2px;
  transition:transform .3s var(--ease);
}
.burger span::before{ top:-6px; }
.burger span::after{ top:6px; }

/* mobile panel */
.mobile-nav{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px var(--gut) 26px;
}
.mobile-nav.is-open{ display:block; }
.mobile-nav a{
  display:block;
  font-family:var(--ff-display);
  font-size:15px;
  font-weight:600;
  letter-spacing:.07em;
  text-transform:uppercase;
  color:var(--ink-2);
  padding:15px 2px;
  border-bottom:1px solid var(--line);
}
.mobile-nav .sub a{
  font-size:13.5px;
  font-weight:500;
  letter-spacing:.03em;
  text-transform:none;
  color:var(--body);
  padding-left:16px;
}
.mobile-nav li:last-child a:last-child{ border-bottom:0; }

/* ---------- 6. Hero ---------- */
.hero{
  position:relative;
  padding-block:clamp(52px,6vw,88px) clamp(64px,7vw,104px);
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(80% 90% at 88% 6%, rgba(50,230,188,.16) 0%, rgba(50,230,188,0) 58%),
    radial-gradient(62% 70% at 2% 96%, rgba(37,133,111,.09) 0%, rgba(37,133,111,0) 62%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:clamp(36px,5vw,84px);
  align-items:center;
}
.hero-title{ margin-top:22px; }
.hero-lede{ margin-top:26px; }
.hero-actions{ margin-top:36px; display:flex; flex-wrap:wrap; gap:14px; align-items:center; }

.hero-media{ position:relative; }
.hero-media::before{
  content:"";
  position:absolute;
  inset:22px -22px -22px 22px;
  background:linear-gradient(140deg, var(--pale) 0%, #D7EEEE 100%);
  border-radius:var(--r-lg);
  z-index:0;
}
.hero-frame{
  position:relative;
  z-index:1;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(11,31,26,.1);
  box-shadow:0 40px 80px -44px rgba(11,31,26,.55);
  aspect-ratio:1/1;
  background:
    radial-gradient(72% 56% at 50% 36%, rgba(50,230,188,.34) 0%, rgba(50,230,188,0) 68%),
    linear-gradient(158deg, #F5FBF9 0%, #E1F1EB 50%, #CDE6DD 100%);
}
/* 同心环：呼应“实时数据采集”，保持极低对比度，只作肌理 */
.hero-frame::before{
  content:"";
  position:absolute;
  left:50%; top:38%;
  width:112%;
  aspect-ratio:1/1;
  transform:translate(-50%,-50%);
  background:
    radial-gradient(closest-side, transparent 61.6%, rgba(37,133,111,.11) 61.8%, rgba(37,133,111,.11) 62.5%, transparent 62.7%),
    radial-gradient(closest-side, transparent 47.6%, rgba(37,133,111,.13) 47.8%, rgba(37,133,111,.13) 48.5%, transparent 48.7%),
    radial-gradient(closest-side, transparent 33.6%, rgba(37,133,111,.14) 33.8%, rgba(37,133,111,.14) 34.5%, transparent 34.7%),
    radial-gradient(closest-side, transparent 19.6%, rgba(37,133,111,.15) 19.8%, rgba(37,133,111,.15) 20.5%, transparent 20.7%);
  pointer-events:none;
}
/* 设备：A1 手持机 + A2 平板，正面并置，底边对齐 */
.hero-dev{
  flex:none;
  display:block;
  width:auto;
  filter:drop-shadow(0 20px 24px rgba(11,31,26,.26)) drop-shadow(0 3px 7px rgba(11,31,26,.12));
}
/* 真机正面图：手机与平板均竖置，底对齐并排 */
.hero-visual{
  position:absolute; inset:0;
  display:flex; align-items:flex-end; justify-content:center;
  gap:3%; padding:0 4% 6%;
}
.hero-dev--tab{
  position:static; height:86%; width:auto; z-index:1;
}
.hero-dev--phone{
  position:static; height:60%; width:auto; z-index:2;
}

/* ---------- 7. Stats band ---------- */
.stats{
  background:
    radial-gradient(70% 120% at 12% 0%, rgba(50,230,188,.16) 0%, rgba(50,230,188,0) 55%),
    linear-gradient(180deg, #0B1F1A 0%, #0E2A23 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stats::after{
  content:"";
  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:70px 70px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,0) 78%);
  -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,0) 78%);
  pointer-events:none;
}
.stats .wrap{ position:relative; z-index:1; }
.stats-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  border-top:1px solid rgba(233,245,241,.16);
  padding-top:clamp(38px,4.5vw,58px);
}
.stat{
  padding:clamp(34px,4vw,56px) clamp(22px,2.6vw,44px) 0 0;
  border-right:1px solid rgba(233,245,241,.14);
}
.stat:last-child{ border-right:0; padding-right:0; }
.stat:not(:first-child){ padding-left:clamp(22px,2.6vw,44px); }
.stat-num{
  font-family:var(--ff-display);
  font-size:clamp(56px, 6.8vw, 94px);
  font-weight:600;
  line-height:.94;
  letter-spacing:-.045em;
  color:#fff;
  font-variant-numeric:tabular-nums;
  display:block;
}
.stat-rule{
  width:100%;
  max-width:78px;
  height:3px;
  border-radius:3px;
  background:linear-gradient(90deg, var(--brand-bright), rgba(50,230,188,.15));
  margin:26px 0 22px;
}
.stat-txt{
  color:rgba(233,245,241,.82);
  font-size:16px;
  line-height:1.66;
  max-width:34ch;
  font-weight:300;
}

/* ---------- 8. Bridge statement ---------- */
.bridge{ background:#fff; }
.standfirst{
  font-family:var(--ff-display);
  font-size:clamp(21px, 2.35vw, 31px);
  font-weight:400;
  line-height:1.46;
  letter-spacing:-.016em;
  color:var(--ink-2);
  max-width:56ch;
  text-wrap:pretty;
}
.standfirst .accent{ color:var(--brand-deep); }
.bridge .wrap{ position:relative; }

/* ---------- 9. Mission ---------- */
.mission{ background:#fff; padding-top:0; }
.mission-grid{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:clamp(36px,5.4vw,86px);
  align-items:center;
}
.mission-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--pale);
  box-shadow:0 40px 80px -50px rgba(11,31,26,.45);
}
.mission-media img{ width:100%; height:100%; object-fit:cover; }
.mission-copy .accent-bar{
  width:44px; height:3px; border-radius:3px;
  background:var(--brand-mid);
  margin-bottom:28px;
}
.statement{
  font-size:clamp(17.5px, 1.32vw, 19.5px);
  line-height:1.72;
  color:var(--ink-2);
  max-width:57ch;
}
.statement strong{ color:var(--brand-deep); font-weight:600; }
.mission-copy .btn{ margin-top:34px; }

/* ---------- 10. Sustainability ---------- */
.green{
  background:linear-gradient(180deg, var(--wash) 0%, #EAF5F2 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  position:relative;
  overflow:hidden;
}
.green::before{
  content:"";
  position:absolute;
  right:-140px; top:-140px;
  width:520px; height:520px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(53,181,151,.20) 0%, rgba(53,181,151,0) 68%);
  pointer-events:none;
}
.green .wrap{ position:relative; z-index:1; }
.green-head{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:clamp(28px,4vw,64px);
  align-items:end;
  margin-bottom:clamp(40px,5vw,64px);
}
.green-body{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:clamp(26px,3.4vw,52px);
  padding-top:clamp(34px,4vw,52px);
  border-top:1px solid var(--line-2);
}
.green-body p{ color:var(--body); }

/* 下载入口做成段末的卡片，保持段落本身不被拆开 */
.doc-link{
  display:flex;
  align-items:center;
  gap:16px;
  width:fit-content;
  max-width:100%;
  margin-top:clamp(24px, 2.4vw, 34px);
  padding:clamp(14px, 1.4vw, 18px) clamp(18px, 1.8vw, 24px);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:0 14px 30px -24px rgba(11,31,26,.45);
  font-family:var(--ff-display);
  font-size:clamp(15px, 1.24vw, 16.5px);
  font-weight:600;
  letter-spacing:-.006em;
  line-height:1.45;
  color:var(--brand-deep);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease),
             transform .25s var(--ease), color .25s var(--ease);
}
.doc-link:hover{
  border-color:var(--brand-mid);
  color:var(--brand);
  transform:translateY(-2px);
  box-shadow:0 20px 38px -24px rgba(11,31,26,.5);
}
.doc-link .ic{
  flex:none;
  width:38px; height:38px;
  border-radius:50%;
  background:var(--brand-deep);
  color:#fff;
  display:grid; place-items:center;
  transition:background .25s var(--ease), transform .25s var(--ease);
}
.doc-link:hover .ic{ background:var(--brand); transform:translateY(2px); }

/* ---------- 11. CTA ---------- */
.cta{
  background:
    radial-gradient(80% 130% at 84% 8%, rgba(50,230,188,.22) 0%, rgba(50,230,188,0) 58%),
    linear-gradient(150deg, #0D3B31 0%, #14604D 52%, #1B7A63 100%);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta::after{
  content:"";
  position:absolute;
  left:-160px; bottom:-220px;
  width:640px; height:640px;
  border-radius:50%;
  border:1px solid rgba(233,245,241,.16);
  pointer-events:none;
}
.cta .wrap{ position:relative; z-index:1; }
.cta-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(34px,4.6vw,76px);
  align-items:center;
}
.cta h1{
  font-family:var(--ff-display);
  font-weight:600;
  font-size:clamp(34px,4.4vw,56px);
  letter-spacing:-.028em;
  line-height:1.06;
  color:#fff;
  text-wrap:balance;
}
.cta .p-body{
  color:rgba(233,245,241,.86);
  font-weight:300;
  margin-top:24px;
  font-size:17.5px;
}
.cta-actions{ margin-top:34px; display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.cta-panel{
  border:1px solid rgba(233,245,241,.24);
  border-radius:var(--r-lg);
  padding:clamp(28px,3.2vw,42px);
  background:rgba(255,255,255,.05);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.cta-panel address{
  font-style:normal;
  display:grid;
  gap:12px;
}
.cta-line{
  font-family:var(--ff-display);
  font-size:clamp(18px, 1.55vw, 22px);
  font-weight:600;
  letter-spacing:-.018em;
  line-height:1.38;
  color:#fff;
}
.cta-tel{
  font-family:var(--ff-display);
  font-size:clamp(16px, 1.4vw, 19px);
  font-weight:500;
  letter-spacing:-.008em;
  color:var(--brand-bright);
  width:fit-content;
  border-bottom:1px solid rgba(50,230,188,.42);
  padding-bottom:3px;
  transition:border-color .25s var(--ease), color .25s var(--ease);
}
.cta-tel:hover{ border-bottom-color:#fff; color:#fff; }

/* ---------- 12. Footer ---------- */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding-block:clamp(48px,5vw,72px) 38px;
}
.f-top{
  display:flex;
  flex-wrap:wrap;
  gap:clamp(26px,4vw,60px);
  align-items:center;
  justify-content:space-between;
  padding-bottom:clamp(30px,3.6vw,44px);
  border-bottom:1px solid var(--line);
}
.f-brand{ display:flex; align-items:center; }
.f-brand img{ height:40px; width:auto; }
.f-nav{
  display:flex;
  flex-wrap:wrap;
  gap:clamp(14px,2vw,30px);
}
.f-nav a{
  font-family:var(--ff-display);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.085em;
  text-transform:uppercase;
  color:var(--body);
  transition:color .22s var(--ease);
}
.f-nav a:hover{ color:var(--brand-deep); }
.f-bottom{
  display:flex;
  flex-wrap:wrap;
  gap:14px 34px;
  align-items:center;
  justify-content:space-between;
  padding-top:26px;
}
.f-legal{
  font-size:14.5px;
  color:var(--muted);
  display:flex;
  flex-wrap:wrap;
  gap:6px 20px;
  align-items:center;
}
.f-legal a{ color:var(--muted); transition:color .22s var(--ease); }
.f-legal a:hover{ color:var(--brand-deep); }
.f-sep{
  width:4px; height:4px; border-radius:50%;
  background:var(--line-2);
  flex:none;
}

/* ---------- 13. Reveal animation ---------- */
/* 只有 JS 可用时才隐藏待入场元素，避免脚本失效导致内容不可见 */
.js .rv{ opacity:0; transform:translateY(18px); }
.rv.is-in{
  opacity:1; transform:none;
  transition:opacity .7s var(--ease), transform .7s var(--ease);
}
.rv-delay-1.is-in{ transition-delay:.09s; }
.rv-delay-2.is-in{ transition-delay:.18s; }
.rv-delay-3.is-in{ transition-delay:.27s; }

.skip{
  position:absolute; left:-9999px; top:0;
  background:var(--brand-deep); color:#fff;
  padding:12px 18px; border-radius:0 0 var(--r-sm) 0;
  font-family:var(--ff-display); font-weight:600; z-index:200;
}
.skip:focus{ left:0; }

/* ---------- 14. Responsive ---------- */
@media (max-width:1080px){
  .hero-grid{ grid-template-columns:1fr; gap:44px; }
  .hero-media{ max-width:560px; }
  .hero-media::before{ inset:16px -16px -16px 16px; }
  .mission-grid{ grid-template-columns:1fr; gap:38px; }
  .mission-media{ max-width:560px; }
  .green-head{ grid-template-columns:1fr; align-items:start; gap:26px; }
  .cta-grid{ grid-template-columns:1fr; gap:40px; }
  .cta-panel{ max-width:560px; }
}
@media (max-width:900px){
  :root{ --gut:24px; }
  .nav, .hdr-cta{ display:none; }
  .burger{ display:inline-flex; }
  .stats-grid{ grid-template-columns:1fr; }
  .stat{
    border-right:0;
    border-bottom:1px solid rgba(233,245,241,.14);
    padding:34px 0;
  }
  .stat:last-child{ border-bottom:0; padding-bottom:0; }
  .stat:not(:first-child){ padding-left:0; }
  .stat-txt{ max-width:46ch; }
  .green-body{ grid-template-columns:1fr; gap:24px; }
  .doc-link{ align-items:flex-start; }
}
@media (max-width:640px){
  body{ font-size:16px; }
  .hdr-inner{ min-height:70px; }
  .brand img{ height:38px; }
  .brand-name{ font-size:17px; margin-left:9px; }
  .hero-media::before{ display:none; }
  .f-top{ flex-direction:column; align-items:flex-start; gap:26px; }
  .f-nav{ gap:14px 20px; }
  .f-bottom{ flex-direction:column; align-items:flex-start; }
}

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

@media print{
  .site-header,.burger,.mobile-nav{ display:none !important; }
  .stats,.cta{ color:#000; background:#fff; }
  .rv{ opacity:1 !important; transform:none !important; }
}

/* ---------- 15. Sibling pages safety ---------- */
wbr{ word-break:break-word; }
picture{ display:contents; }   /* 让 <picture> 不产生盒子，img 仍作为直接子元素参与布局 */
source{ display:none; }         /* <picture> 里的 <source> 不该成为 grid/flex 子项：
                                   .callout 是 grid，若 <source> 占掉第 1 列，img 会被挤进 0px 的第 2 列而不可见 */


/* ============================================================
   16. Sub-page components
   —— 首页（index.html）不使用这些类，追加在此不影响首页渲染
   ============================================================ */

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px;
  overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; border:0;
}

/* ---------- 页面页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg, var(--wash) 0%, #FFFFFF 100%);
  border-bottom:1px solid var(--line);
  padding-block:clamp(30px,3.4vw,46px) clamp(40px,4.8vw,68px);
}
.page-hero::before{
  content:"";
  position:absolute; right:-170px; top:-210px;
  width:640px; height:640px; border-radius:50%;
  background:radial-gradient(circle, rgba(50,230,188,.20) 0%, rgba(50,230,188,0) 66%);
  pointer-events:none;
}
.page-hero .wrap{ position:relative; z-index:1; }
.breadcrumb{
  display:flex; flex-wrap:wrap; align-items:center; gap:9px;
  font-family:var(--ff-display); font-size:12px; font-weight:600;
  letter-spacing:.1em; text-transform:uppercase; color:var(--muted);
  margin-bottom:clamp(18px,2.1vw,26px);
}
.breadcrumb a{ color:var(--muted); transition:color .22s var(--ease); }
.breadcrumb a:hover{ color:var(--brand-deep); }
.breadcrumb .sep{ opacity:.45; }
.breadcrumb [aria-current]{ color:var(--brand-deep); }
.page-title{
  font-family:var(--ff-display); font-weight:600;
  letter-spacing:-.028em; line-height:1.06;
  font-size:clamp(31px,4.3vw,55px); color:var(--ink);
  max-width:26ch; text-wrap:balance;
}
.page-hero .lede{ margin-top:clamp(18px,2.2vw,26px); }
.page-hero .hero-actions{ margin-top:clamp(26px,3vw,36px); }

.section--wash{ background:var(--wash); border-block:1px solid var(--line); }
.section--pale{ background:var(--pale); border-block:1px solid var(--line); }
.section--tight{ padding-block:clamp(50px,5.4vw,84px); }
.section--flushTop{ padding-top:0; }

/* 段首两栏标题区 */
.sec-head{
  display:grid;
  grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);
  gap:clamp(24px,3.4vw,58px);
  align-items:end;
  margin-bottom:clamp(32px,3.8vw,54px);
}
@media (max-width:900px){
  .sec-head{ grid-template-columns:1fr; align-items:start; gap:18px; }
}

/* ---------- 长文排版 ---------- */
.prose{ max-width:76ch; }
.prose > * + *{ margin-top:1.02em; }
.prose h2{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(23px,2.3vw,31px); line-height:1.16; letter-spacing:-.022em;
  color:var(--ink); margin-top:1.9em; max-width:26ch;
}
.prose h3{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(18px,1.55vw,21.5px); line-height:1.3; letter-spacing:-.016em;
  color:var(--ink); margin-top:1.7em;
}
.prose h4{
  font-family:var(--ff-display); font-weight:600; font-size:17px;
  line-height:1.35; letter-spacing:-.012em; color:var(--ink); margin-top:1.5em;
}
.prose p, .prose li{ color:var(--body); }
.prose > h2:first-child, .prose > h3:first-child, .prose > p:first-child{ margin-top:0; }
.prose ul{ list-style:none; padding:0; display:grid; gap:10px; margin-top:1.1em; }
.prose ul li{ position:relative; padding-left:23px; }
.prose ul li::before{
  content:""; position:absolute; left:2px; top:.66em;
  width:7px; height:7px; border-radius:50%; background:var(--brand-mid);
}
.prose a, .link-inline{
  color:var(--brand-deep);
  border-bottom:1px solid rgba(53,181,151,.5);
  transition:color .22s var(--ease), border-color .22s var(--ease);
}
.prose a:hover, .link-inline:hover{ color:var(--brand); border-bottom-color:var(--brand); }
.prose strong{ color:var(--ink-2); font-weight:600; }
.prose em{ font-style:italic; }
.prose--center{ text-align:center; margin-inline:auto; }

/* ---------- 卡片网格 ---------- */
.cards{ display:grid; grid-template-columns:repeat(auto-fit,minmax(268px,1fr)); gap:clamp(18px,2.2vw,30px); }
.cards--2{ grid-template-columns:repeat(2,minmax(0,1fr)); }
.cards--3{ grid-template-columns:repeat(3,minmax(0,1fr)); }
@media (max-width:1000px){ .cards--3{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (max-width:760px){
  .cards--2, .cards--3{ grid-template-columns:1fr; }
}

.card{
  display:flex; flex-direction:column;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.card:hover{
  border-color:var(--line-2);
  box-shadow:0 28px 54px -40px rgba(11,31,26,.5);
  transform:translateY(-3px);
}
.card-body{
  padding:clamp(22px,2.2vw,30px);
  display:flex; flex-direction:column; gap:12px; flex:1;
}
.card h3{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(18px,1.5vw,20.5px); line-height:1.24; letter-spacing:-.017em; color:var(--ink);
}
.card h4{
  font-family:var(--ff-display); font-weight:600;
  font-size:17.5px; line-height:1.26; letter-spacing:-.014em; color:var(--ink);
}
.card p{ color:var(--body); font-size:16px; line-height:1.68; }
.card .card-spacer{ flex:1; }
.card-eyebrow{
  font-family:var(--ff-display); font-size:11.5px; font-weight:600;
  letter-spacing:.145em; text-transform:uppercase; color:var(--brand);
}
.card-media{ position:relative; background:var(--pale); overflow:hidden; }
.card-media img{ width:100%; height:100%; object-fit:cover; display:block; }
.card-media--16x9{ aspect-ratio:16/9; }
.card-media--4x3{ aspect-ratio:4/3; }
.card-media--1x1{ aspect-ratio:1/1; }
.card-media--wide{ aspect-ratio:2/1; }



/* 图标卡：小圆图 + 文案 */
.card--icon{ border:0; background:transparent; border-radius:0; }
.card--icon:hover{ transform:none; box-shadow:none; border-color:transparent; }
.card--icon .card-body{ padding:0; gap:14px; }
.card--icon .card-media{
  width:clamp(84px,9vw,108px); height:clamp(84px,9vw,108px);
  border-radius:50%; flex:none; background:var(--pale); border:1px solid var(--line);
}
.card--icon .card-media img{ object-fit:cover; }
@media (max-width:760px){
  .card--icon{ display:grid; grid-template-columns:auto minmax(0,1fr); gap:20px; align-items:start; }
  .card--icon .card-body{ padding-top:2px; }
}

/* 纯文字卡（带左色条） */
.card--tick{ border-left:3px solid var(--brand-mid); }
.card--tick .card-body{ gap:14px; }

/* ---------- 特性条目（双栏密集列表） ---------- */
.features{
  display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(22px,2.6vw,38px) clamp(28px,3.6vw,64px);
  margin-top:clamp(30px,3.4vw,46px);
}
@media (max-width:840px){ .features{ grid-template-columns:1fr; } }
.feature{ border-top:2px solid var(--line); padding-top:20px; }
.feature h3{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(17px,1.4vw,19.5px); line-height:1.3; letter-spacing:-.015em; color:var(--ink);
}
.feature p{ margin-top:10px; color:var(--body); font-size:16px; line-height:1.7; max-width:52ch; }

/* ---------- 文档下载 ---------- */
.doc-list{ display:grid; gap:14px; margin-top:clamp(24px,2.6vw,34px); }
.doc-list .doc-link{ margin-top:0; width:100%; align-items:flex-start; }
.doc-link .doc-meta{ display:block; }
.doc-link small{
  display:block; margin-top:5px;
  font-family:var(--ff-body); font-size:13.5px; font-weight:400;
  letter-spacing:0; line-height:1.5; color:var(--muted);
}

/* ---------- 资质卡（徽标 + 说明） ---------- */
.callout{
  display:grid; grid-template-columns:auto minmax(0,1fr);
  gap:clamp(22px,2.8vw,44px); align-items:center;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:clamp(24px,2.8vw,40px);
  box-shadow:0 30px 66px -58px rgba(11,31,26,.5);
}
.callout img{ width:clamp(94px,11vw,148px); height:auto; }
.callout > div > * + *{ margin-top:.9em; }
.callout p{ color:var(--body); }
@media (max-width:640px){
  .callout{ grid-template-columns:1fr; }
  .callout img{ width:110px; }
}

/* ---------- 规格表 ---------- */
.table-wrap{
  overflow-x:auto;
  border:1px solid var(--line); border-radius:var(--r-lg); background:#fff;
  box-shadow:0 30px 66px -60px rgba(11,31,26,.45);
}
table.spec{ border-collapse:collapse; width:100%; min-width:440px; }
table.spec caption{
  text-align:left; padding:18px clamp(16px,2vw,26px) 0;
  font-family:var(--ff-display); font-size:12px; font-weight:600;
  letter-spacing:.12em; text-transform:uppercase; color:var(--brand);
}
table.spec th, table.spec td{
  text-align:left; padding:15px clamp(16px,2vw,26px);
  font-size:16px; line-height:1.55; border-bottom:1px solid var(--line);
}
table.spec tr:last-child th, table.spec tr:last-child td{ border-bottom:0; }
table.spec th{
  width:44%; background:var(--wash);
  font-family:var(--ff-display); font-weight:600;
  letter-spacing:-.008em; color:var(--ink-2); vertical-align:top;
}
table.spec td{ color:var(--body); }
table.spec td.num{ font-variant-numeric:tabular-nums; }

/* ---------- 对比列 ---------- */
.compare{
  display:grid; grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(20px,2.6vw,36px); align-items:start;
}
@media (max-width:820px){ .compare{ grid-template-columns:1fr; } }
.compare-col > h3{
  font-family:var(--ff-display); font-size:12px; font-weight:600;
  letter-spacing:.13em; text-transform:uppercase; color:var(--brand);
  margin-bottom:16px;
}
.compare-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:clamp(22px,2.4vw,32px);
}
.compare-card + .compare-card{ margin-top:18px; }
.compare-card h4{
  font-family:var(--ff-display); font-weight:600; font-size:19px;
  letter-spacing:-.016em; color:var(--ink);
}
.compare-card--off{ background:var(--wash); border-style:dashed; border-color:var(--line-2); }
.ticks{ display:grid; gap:12px; margin-top:16px; }
.ticks li{ position:relative; padding-left:26px; color:var(--body); font-size:16.5px; line-height:1.58; }
.ticks li::before{
  content:""; position:absolute; left:2px; top:.5em;
  width:8px; height:8px; border-radius:50%; background:var(--brand-mid);
}
.ticks--off li::before{ background:var(--muted); opacity:.55; }

/* ---------- 整幅插图 ---------- */
.media-figure{
  border:1px solid var(--line); border-radius:var(--r-lg); overflow:hidden;
  background:var(--wash); box-shadow:0 34px 74px -62px rgba(11,31,26,.5);
}
.media-figure img{ width:100%; height:auto; display:block; }
.media-figure figcaption{
  padding:15px 20px; font-size:14.5px; line-height:1.6; color:var(--muted);
  border-top:1px solid var(--line); background:#fff;
}
.media-stack{ display:grid; gap:clamp(18px,2.2vw,28px); }

/* ---------- 联系页 ---------- */
.contact-grid{
  display:grid; grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);
  gap:clamp(30px,4vw,64px); align-items:start;
}
@media (max-width:980px){ .contact-grid{ grid-template-columns:1fr; } }

.form{
  display:grid; gap:20px;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:clamp(24px,2.8vw,38px);
  box-shadow:0 30px 70px -62px rgba(11,31,26,.55);
}
.field{ display:grid; gap:8px; }
.field label{
  font-family:var(--ff-display); font-size:12.5px; font-weight:600;
  letter-spacing:.07em; text-transform:uppercase; color:var(--ink-2);
}
.field .req{ color:var(--brand); }
.field input, .field textarea{
  font:inherit; width:100%; color:var(--ink); background:var(--white);
  border:1px solid var(--line-2); border-radius:var(--r-sm);
  padding:13px 14px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.field input:focus, .field textarea:focus{
  outline:none; border-color:var(--brand); box-shadow:0 0 0 3px rgba(53,181,151,.18);
}
.field textarea{ min-height:154px; resize:vertical; }
.field--check{ grid-template-columns:auto minmax(0,1fr); align-items:start; gap:12px; }
.field--check input{ width:18px; height:18px; margin:4px 0 0; accent-color:var(--brand-deep); flex:none; }
.field--check label{
  text-transform:none; letter-spacing:0; font-family:var(--ff-body);
  font-size:14.5px; font-weight:400; color:var(--body); line-height:1.62;
}
.form-note{ font-size:14px; line-height:1.62; color:var(--muted); }
.form-note a{ color:var(--brand-deep); border-bottom:1px solid rgba(53,181,151,.45); }

.info-card{
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:clamp(24px,2.8vw,36px);
}
.info-card h2{
  font-family:var(--ff-display); font-weight:600; font-size:clamp(20px,1.8vw,24px);
  letter-spacing:-.018em; color:var(--ink);
}
.info-card h3{
  font-family:var(--ff-display); font-weight:600; font-size:19px;
  letter-spacing:-.015em; color:var(--ink); margin-top:22px;
}
.info-list{ display:grid; gap:17px; margin-top:22px; }
.info-row .k{
  display:block; font-family:var(--ff-display); font-size:11.5px; font-weight:600;
  letter-spacing:.12em; text-transform:uppercase; color:var(--brand); margin-bottom:3px;
}
.info-row .v{ color:var(--ink-2); font-size:16.5px; line-height:1.6; }
.info-row .v a{ color:var(--brand-deep); border-bottom:1px solid rgba(53,181,151,.45); }
.info-row .v a:hover{ border-bottom-color:var(--brand); }
.info-legal{
  margin-top:24px; padding-top:20px; border-top:1px solid var(--line);
  display:grid; gap:7px; font-size:14.5px; color:var(--muted); line-height:1.6;
}
.info-legal strong{ color:var(--body); font-weight:600; }

/* ---------- 居中卡片页（隐私政策 / 合作伙伴门户） ---------- */
.center-card{
  max-width:640px; margin-inline:auto;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  padding:clamp(30px,3.6vw,54px); text-align:center;
  box-shadow:0 34px 76px -66px rgba(11,31,26,.55);
}
.center-card h1{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(26px,3vw,38px); line-height:1.12; letter-spacing:-.026em;
  color:var(--ink); text-wrap:balance;
}
.center-card h2{
  font-family:var(--ff-display); font-weight:500;
  font-size:clamp(17px,1.5vw,20px); letter-spacing:-.012em; color:var(--brand-deep);
  margin-top:14px;
}
.center-card p{ color:var(--body); margin-top:20px; }
.center-card .btn{ margin-top:28px; }
.center-card .doc-list{ margin-top:28px; text-align:left; }

/* ---------- 横向 CTA 带（子页收尾） ---------- */
.cta-band{
  position:relative; overflow:hidden;
  background:linear-gradient(150deg, #0D3B31 0%, #14604D 52%, #1B7A63 100%);
  color:#fff; text-align:center;
}
.cta-band::after{
  content:"";
  position:absolute; left:50%; top:-300px; transform:translateX(-50%);
  width:820px; height:820px; border-radius:50%;
  border:1px solid rgba(233,245,241,.14);
  pointer-events:none;
}
.cta-band .wrap{ position:relative; z-index:1; max-width:780px; }
.cta-band h2{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(27px,3.3vw,43px); line-height:1.1; letter-spacing:-.027em;
  color:#fff; text-wrap:balance;
}
.cta-band p{ color:rgba(233,245,241,.86); font-weight:300; margin-top:20px; font-size:17.5px; }
.cta-band .hero-actions{ justify-content:center; margin-top:32px; }

/* ---------- 404 ---------- */
.err-code{
  font-family:var(--ff-display); font-weight:700;
  font-size:clamp(72px,12vw,132px); line-height:.9; letter-spacing:-.05em;
  color:var(--line-2); margin-bottom:-.1em;
}

/* ---------- 管理团队（About Us） ---------- */
.team{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,2.6vw,34px);
  margin-top:clamp(30px,3.4vw,46px);
}
@media (max-width:1000px){ .team{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (max-width:680px){ .team{ grid-template-columns:1fr; } }

.team-card{
  display:flex; flex-direction:column;
  background:#fff; border:1px solid var(--line); border-radius:var(--r-lg);
  overflow:hidden;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.team-card:hover{
  border-color:var(--line-2);
  box-shadow:0 28px 54px -40px rgba(11,31,26,.5);
  transform:translateY(-3px);
}
.team-photo{
  position:relative; aspect-ratio:4/5; overflow:hidden;
  background:var(--pale); border-bottom:1px solid var(--line);
}
.team-photo img{
  width:100%; height:100%; display:block;
  object-fit:cover; object-position:50% 20%;
}
/* 肖像待补时的占位框（照片到位后自动消失） */
.team-photo--empty{
  display:grid; place-content:center; justify-items:center; gap:13px;
  padding:20px; text-align:center; color:var(--muted);
  background:repeating-linear-gradient(45deg,#F2F9F7 0 13px,#EAF4F1 13px 26px);
}
.team-photo--empty::after{
  content:""; position:absolute; inset:13px; pointer-events:none;
  border:1px dashed var(--line-2); border-radius:var(--r-md);
}
.team-photo--empty svg{ opacity:.55; }
.team-photo-note{
  font-family:var(--ff-display); font-size:11px; font-weight:600;
  letter-spacing:.14em; text-transform:uppercase;
}
.team-body{
  padding:clamp(20px,2vw,26px);
  display:flex; flex-direction:column; gap:7px; flex:1;
}
.team-name{
  font-family:var(--ff-display); font-weight:600;
  font-size:clamp(17.5px,1.4vw,20px); line-height:1.24;
  letter-spacing:-.016em; color:var(--ink);
}
.team-role{
  font-family:var(--ff-display); font-size:11.5px; font-weight:600;
  letter-spacing:.13em; text-transform:uppercase; color:var(--brand);
}
.team-bio{ color:var(--body); font-size:15.5px; line-height:1.68; margin-top:5px; }
.team-card--pending .team-name,
.team-card--pending .team-role,
.team-card--pending .team-bio{ color:var(--muted); }

/* ---------- 响应式补丁 ---------- */
@media (max-width:900px){
  .page-hero{ padding-block:26px clamp(34px,5vw,50px); }
}
@media (max-width:640px){
  .page-title{ max-width:100%; }
  .card:hover{ transform:none; }
  .form{ padding:22px 20px; }
}
@media print{
  .page-hero::before, .cta-band::after{ display:none; }
}


/* ============ AI Strategy: 4-up cards / timeline / steps / icons ============ */
.cards--4{ grid-template-columns:repeat(4,1fr); }

.ico{ display:inline-flex; color:var(--brand); margin-bottom:14px; }
.ico svg{ width:34px; height:34px; }

.phases{ display:grid; grid-template-columns:repeat(4,1fr); gap:26px;
  margin-top:clamp(30px,3.6vw,48px); position:relative; }
.phase{ position:relative; padding-top:32px; }
.phase::after{ content:""; position:absolute; top:7px; left:15px;
  width:calc(100% + 11px); height:1px; background:var(--line-2); }
.phase:last-child::after{ display:none; }
.phase::before{ content:""; position:absolute; left:0; top:0; width:15px; height:15px;
  border-radius:50%; background:var(--white); border:2.5px solid var(--brand); box-sizing:border-box; }
.phase b{ display:block; font-family:var(--ff-body); font-size:11.5px; font-weight:600;
  letter-spacing:.16em; text-transform:uppercase; color:var(--brand); }
.phase h3{ margin:8px 0; font-family:var(--ff-display); font-weight:600;
  font-size:clamp(16px,1.4vw,19px); line-height:1.28; color:var(--ink); }
.phase p{ margin:0; font-size:15px; line-height:1.55; color:var(--body); }

.steps{ display:grid; grid-template-columns:repeat(5,1fr); gap:22px;
  margin-top:clamp(30px,3.6vw,48px); }
.step{ position:relative; text-align:center; }
.step::after{ content:""; position:absolute; top:23px; left:calc(50% + 32px);
  width:calc(100% - 64px); height:1px; background:var(--line-2); }
.step:last-child::after{ display:none; }
.step .num{ width:46px; height:46px; margin:0 auto 16px; border-radius:50%;
  display:grid; place-items:center; background:var(--brand); color:#fff;
  font-family:var(--ff-display); font-weight:600; font-size:17px; }
.step h3{ margin:0 0 6px; font-family:var(--ff-display); font-weight:600;
  font-size:16px; color:var(--ink); }
.step p{ margin:0; font-size:14px; line-height:1.5; color:var(--body); }

@media (max-width:1000px){
  .cards--4{ grid-template-columns:repeat(2,1fr); }
  .phases{ grid-template-columns:repeat(2,1fr); gap:28px 22px; }
  .phases::before{ display:none; }
  .steps{ grid-template-columns:1fr; gap:20px; }
  .step{ text-align:left; display:grid; grid-template-columns:46px 1fr; gap:2px 16px; align-items:start; }
  .step .num{ margin:0; grid-row:1 / span 2; }
  .step::after{ display:none; }
  .step h3{ grid-column:2; margin:8px 0 2px; }
  .step p{ grid-column:2; }
}
@media (max-width:620px){
  .cards--4{ grid-template-columns:1fr; }
  .phases{ grid-template-columns:1fr; }
}

/* ---------- About: "We do it better" 重排 ---------- */
/* 标题与引言顶部对齐，消除左上角空洞；下方三列用贯通细线起分隔 */
.better .sec-head{
  align-items:start;
  grid-template-columns:minmax(0,1fr) minmax(0,.9fr);
  gap:clamp(32px,5.2vw,86px);
  margin-bottom:0;
}
.better .sec-head h2{
  font-size:clamp(38px,5.2vw,68px);
  line-height:1.0;
  letter-spacing:-.034em;
  max-width:none;
}
.better .sec-head .prose{ padding-top:.5em; }
.better .cards--3{
  gap:clamp(30px,3.8vw,58px);
  margin-top:clamp(34px,4vw,54px);
  padding-top:clamp(28px,3vw,42px);
  border-top:1px solid var(--line);
}
.better .card--icon .card-media{
  width:clamp(96px,10.5vw,134px);
  height:clamp(96px,10.5vw,134px);
  border:0; background:transparent;
}
.better .card--icon{ align-items:center; text-align:center; }
.better .card--icon .card-media{ margin-inline:auto; }
.better .card--icon .card-body{
  gap:14px; align-items:center;
  padding-top:clamp(14px,1.5vw,22px);
}
.better .card--icon .card-body h3{
  font-size:clamp(18px,1.6vw,21px);
  text-wrap:balance;
}
.better .card--icon .card-body p{
  font-size:15px; line-height:1.68;
  max-width:none; margin-inline:auto;
  text-wrap:pretty;
}
@media (max-width:760px){
  .better .card--icon{ display:flex; flex-direction:column; gap:0; }
  .better .card--icon .card-body{ padding-top:18px; }
  .better .card--icon .card-body p{ max-width:48ch; }
}

/* ---------- About: Avro Health 卡片 ---------- */
.avro-card{
  display:grid; place-items:center;
  aspect-ratio:1/1; padding:17%;
  background:#fff; border:1px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color .25s var(--ease), transform .25s var(--ease);
}
.avro-card:hover{ border-color:var(--brand); transform:translateY(-2px); }
.avro-card img{ width:100%; height:auto; display:block; }
.avro-link{ margin-top:clamp(20px,2.2vw,30px); }

/* We do it better：标题下的引言（原斜体强调句） */
.better-kicker{
  margin-top:clamp(22px,2.4vw,34px);
  max-width:30ch;
  font-size:clamp(17px,1.5vw,20px);
  line-height:1.5;
  font-style:italic;
  font-weight:600;
  color:var(--brand);
  letter-spacing:-.01em;
}
@media (max-width:900px){
  .better-kicker{ max-width:none; }
}

/* ---------- About: "Simplifying & improving" 重排 ---------- */
.simplify .sec-head{
  align-items:center;
  grid-template-columns:minmax(0,1.05fr) minmax(0,.85fr);
  gap:clamp(32px,5vw,80px);
  margin-bottom:0;
}
.simplify .h-section{
  font-size:clamp(34px,4.3vw,57px);
  line-height:1.04;
  letter-spacing:-.03em;
  max-width:none;
}
.simplify .prose{ padding-top:.45em; }
.simplify .lede{
  margin:0;
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.6;
  color:var(--body);
}
/* 两列共用一条贯通细线：列间距归零、内部补 padding，边框才能连成整条 */
.simplify .features{
  grid-template-columns:repeat(2,minmax(0,1fr));
  column-gap:0;
  row-gap:clamp(26px,3vw,44px);
  margin-top:clamp(32px,3.8vw,52px);
}
.simplify .feature{
  border-top:1px solid rgba(11,31,26,.16);
  padding:clamp(20px,2.2vw,28px) clamp(26px,2.8vw,42px) 0 0;
}
.simplify .feature:nth-child(even){
  padding-left:clamp(26px,2.8vw,42px);
  padding-right:0;
}
.simplify .feature h3{ font-size:clamp(18px,1.5vw,21px); line-height:1.28; }
.simplify .feature p{ margin-top:10px; font-size:15px; line-height:1.62; color:var(--body); }

/* ---------- About: Supporting Global Communities ---------- */
.charity .sec-head{
  align-items:start;
  grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:clamp(28px,4.6vw,76px);
  margin-bottom:clamp(34px,4.2vw,60px);
}
.charity .h-section{
  font-size:clamp(32px,4.2vw,54px);
  line-height:1.05;
  letter-spacing:-.03em;
  max-width:none;
}
.charity .prose{ padding-top:.34em; }
.charity .prose p{ font-size:16.5px; line-height:1.7; color:var(--body); }

.charity-grid{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(30px,4.6vw,72px);
  align-items:center;
}
.charity-media{
  margin:0;
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--pale);
  box-shadow:0 40px 80px -50px rgba(11,31,26,.45);
}
.charity-media img{ display:block; width:100%; height:auto; }

.charity-place{
  font-family:var(--ff-display);
  font-weight:600;
  font-size:clamp(20px,1.85vw,25px);
  line-height:1.2;
  letter-spacing:-.02em;
  color:var(--brand-deep);
}
.charity-place::before{
  content:"";
  display:block;
  width:44px; height:3px;
  border-radius:3px;
  background:var(--brand-mid);
  margin-bottom:20px;
}
.charity-copy .statement{ margin-top:18px; max-width:58ch; }
.charity-note{
  margin-top:24px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:clamp(15px,1.1vw,16.5px);
  line-height:1.72;
  color:var(--body);
  max-width:58ch;
}
@media (max-width:900px){
  .charity-grid{ grid-template-columns:1fr; gap:clamp(24px,4vw,34px); }
  .charity-media{ max-width:520px; }
}

/* 窄屏修正：这三段的 .sec-head 写了显式列宽，会盖掉全局 @media 的单列规则 */
@media (max-width:900px){
  .better .sec-head,
  .simplify .sec-head,
  .charity .sec-head{ grid-template-columns:1fr; gap:18px; }
  .better .sec-head .prose,
  .simplify .prose,
  .charity .prose{ padding-top:0; }
  .better .sec-head h2,
  .simplify .h-section,
  .charity .h-section{ font-size:clamp(30px,7.4vw,42px); }
}