/* ============================================================
   MERRYTOUR 海南美瑞国际旅行社
   简约韩系高级感 · 浅蓝 + 白
   ============================================================ */

:root{
  --blue-900:#0E3A57;
  --blue-800:#124E70;
  --blue-700:#16658F;
  --blue-600:#1B7FB8;
  --blue-500:#0095C5;
  --blue-400:#5CBFE2;
  --blue-300:#A6DDF1;
  --blue-200:#CDEAF7;
  --blue-100:#E4F2FA;
  --blue-50:#F4FAFD;

  --ink:#16303F;
  --ink-2:#3D5A6C;
  --muted:#7E96A6;
  --line:#E3EDF4;
  --white:#FFFFFF;

  --accent:#F20D5E;      /* logo 红，仅做极少量点缀 */

  --wrap:1200px;
  --radius:3px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --font: "Pretendard","SUIT","Apple SD Gothic Neo","Noto Sans SC","PingFang SC",
          "Hiragino Sans GB","Microsoft YaHei","Malgun Gothic",system-ui,-apple-system,sans-serif;
  --font-ko: "Pretendard","SUIT","Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",
             "Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-en: "Pretendard","SUIT","Inter","Helvetica Neue","Apple SD Gothic Neo",
             "Noto Sans SC","PingFang SC",system-ui,-apple-system,sans-serif;
}

html[lang="zh-CN"]{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC","WenQuanYi Micro Hei",system-ui,-apple-system,sans-serif;}
html[lang="zh-CN"] body,
html[lang="zh-CN"] body *{font-family:inherit;}
html[lang="zh-CN"] body *::before,
html[lang="zh-CN"] body *::after{font-family:inherit;}
html[lang="ko"]{font-family:var(--font-ko);word-break:keep-all;}
html[lang="en"]{font-family:var(--font-en);}
/* body 自带 font-family 会盖掉 html 的继承，故 ko / en 下连 body 及全部后代一并接管，
   含伪元素（寓意编号、导航下划线），确保同一语言内字体完全一致 */
html[lang="ko"] body,
html[lang="en"] body{font-family:inherit;}
html[lang="ko"] body *,
html[lang="en"] body *{font-family:inherit;}
html[lang="ko"] body *::before,
html[lang="ko"] body *::after,
html[lang="en"] body *::before,
html[lang="en"] body *::after{font-family:inherit;}
html[lang="ko"] .hero-en{font-family:inherit;letter-spacing:.3em;}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;scroll-padding-top:72px;}

body{
  margin:0;
  font-family:var(--font);
  color:var(--ink-2);
  background:var(--white);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol,dl,dd{margin:0;padding:0;list-style:none;}
h1,h2,h3,p{margin:0;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}

::selection{background:var(--blue-200);color:var(--blue-900);}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 40px;}

/* ---------- 通用：区块标题 ---------- */
.section{padding:120px 0;background:var(--white);}
.section-tint{background:var(--blue-50);}

.sec-head{margin-bottom:56px;}
.sec-eyebrow{
  font-size:11px;font-weight:600;letter-spacing:.34em;text-transform:uppercase;
  color:var(--blue-500);margin-bottom:14px;
}
.sec-title{
  font-size:34px;line-height:1.35;font-weight:400;letter-spacing:.06em;color:var(--blue-900);
}
.sec-line{
  display:block;width:52px;height:1px;background:var(--blue-300);margin-top:24px;
}
.sec-desc{margin:-32px 0 48px;color:var(--muted);font-size:15px;}

.sec-head-light .sec-eyebrow{color:var(--blue-200);}
.sec-head-light .sec-title{color:#fff;}
.sec-head-light .sec-line{background:rgba(255,255,255,.45);}

/* ---------- 滚动进场 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 1px 20px rgba(14,58,87,.05);
}
.header-inner{
  height:72px;display:flex;align-items:center;gap:28px;
}
.brand-logo{flex:0 0 auto;display:flex;align-items:center;}
.brand-logo img{height:24px;width:auto;}
.nav{display:flex;gap:30px;margin-left:auto;}

/* ---------- 语言切换 ---------- */
.lang-switch{
  display:flex;align-items:center;gap:2px;flex:0 0 auto;
  padding:3px;border:1px solid var(--line);border-radius:40px;background:var(--blue-50);
}
.lang-btn{
  padding:5px 13px;border-radius:40px;font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);line-height:1.4;transition:.25s var(--ease);white-space:nowrap;
}
.lang-btn:hover{color:var(--blue-700);}
.lang-btn.is-active{background:var(--white);color:var(--blue-700);font-weight:600;box-shadow:0 1px 4px rgba(14,58,87,.09);}
.nav-link{
  position:relative;font-size:12.5px;letter-spacing:.18em;font-weight:500;
  color:var(--ink-2);padding:6px 0;transition:color .25s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--blue-500);transition:right .35s var(--ease);
}
.nav-link:hover,.nav-link.is-active{color:var(--blue-600);}
.nav-link:hover::after,.nav-link.is-active::after{right:0;}

.nav-toggle{display:none;width:34px;height:34px;flex-direction:column;justify-content:center;gap:5px;margin-left:auto;}
.nav-toggle span{display:block;height:1px;background:var(--blue-900);transition:.3s var(--ease);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;background:var(--blue-800);}
.hero-media{position:absolute;inset:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;animation:heroZoom 18s var(--ease) forwards;}
@keyframes heroZoom{from{transform:scale(1.06);}to{transform:scale(1);}}
.hero-scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(8,42,66,.92) 0%,rgba(8,42,66,.76) 40%,rgba(8,42,66,.42) 74%,rgba(8,42,66,.12) 100%),
    linear-gradient(180deg,rgba(8,42,66,.34) 0%,rgba(8,42,66,0) 28%,rgba(244,250,253,.92) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:40px;}
.hero-eyebrow{
  font-size:11px;letter-spacing:.42em;color:rgba(255,255,255,.78);margin-bottom:26px;font-weight:500;
  text-shadow:0 1px 14px rgba(8,42,66,.45);
}
.hero-title{margin-bottom:26px;}
.hero-en{
  display:block;font-size:clamp(44px,7vw,86px);font-weight:300;letter-spacing:.16em;
  color:#fff;line-height:1.06;
}
.hero-cn{
  display:block;margin-top:18px;font-size:clamp(18px,2.2vw,26px);font-weight:300;
  letter-spacing:.42em;color:rgba(255,255,255,.9);
  text-shadow:0 1px 14px rgba(8,42,66,.45);
}
.hero-sub{
  font-size:15px;letter-spacing:.16em;color:rgba(255,255,255,.82);
  padding-top:22px;border-top:1px solid rgba(255,255,255,.24);max-width:640px;
  text-shadow:0 1px 12px rgba(8,42,66,.4);
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;max-width:840px;}
.hero-chips li{
  font-size:12px;letter-spacing:.06em;color:#fff;
  padding:8px 16px;border:1px solid rgba(255,255,255,.38);border-radius:40px;
  background:rgba(255,255,255,.08);backdrop-filter:blur(4px);
}

.scroll-cue{
  position:absolute;left:50%;bottom:38px;transform:translateX(-50%);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.scroll-line{width:1px;height:52px;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.85));}
.scroll-txt{font-size:9px;letter-spacing:.34em;color:rgba(255,255,255,.8);writing-mode:vertical-rl;}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;align-items:start;}
.about-text p{margin-bottom:22px;font-size:15.5px;line-height:2.05;}
.about-text p:last-child{margin-bottom:0;}
.about-text strong{color:var(--blue-700);font-weight:600;}
.lead{color:var(--ink);font-size:16.5px !important;}

.about-figure{margin:0;position:sticky;top:110px;align-self:start;}
.about-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);}
.about-figure figcaption{
  margin-top:14px;font-size:11px;letter-spacing:.28em;color:var(--muted);text-align:right;
}

.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  margin-top:80px;border:1px solid var(--line);
}
.stats li{
  background:var(--white);padding:36px 24px;text-align:center;
  transition:background .35s var(--ease);
}
.section-tint .stats li{background:var(--blue-50);}
.stats li:hover{background:var(--blue-100);}
.stat-num{display:block;font-size:40px;font-weight:300;letter-spacing:.02em;color:var(--blue-600);line-height:1.2;}
.stat-unit{display:inline-block;font-size:13px;color:var(--blue-500);margin-left:2px;}
.stat-label{display:block;margin-top:10px;font-size:12.5px;color:var(--muted);letter-spacing:.06em;line-height:1.7;}

/* ============================================================
   HISTORY
   ============================================================ */
.history-layout{display:grid;grid-template-columns:1fr .62fr;gap:64px;align-items:center;}
.timeline{position:relative;padding-left:0;}
.timeline li{
  position:relative;display:grid;grid-template-columns:104px 1fr;gap:28px;
  padding:0 0 40px 0;
}
.timeline li::before{
  content:"";position:absolute;left:104px;top:8px;bottom:0;width:1px;background:var(--blue-200);
}
.timeline li.is-last::before{display:none;}
.tl-year{
  position:relative;font-size:22px;font-weight:300;letter-spacing:.06em;color:var(--blue-600);
  padding-right:28px;text-align:right;line-height:1.4;
}
.tl-year::after{
  content:"";position:absolute;right:-5px;top:11px;width:9px;height:9px;border-radius:50%;
  background:var(--white);border:1.5px solid var(--blue-500);
}
.tl-body{padding-left:28px;}
.tl-body h3{font-size:16.5px;font-weight:500;color:var(--blue-900);letter-spacing:.03em;margin-bottom:8px;}
.tl-body p{font-size:14.5px;color:var(--muted);line-height:1.9;}

.history-figure{margin:0;position:sticky;top:110px;align-self:start;}
.history-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);}

/* ============================================================
   BRAND
   ============================================================ */
.brand{position:relative;padding:130px 0;overflow:hidden;background:var(--blue-800);}
.brand-media{position:absolute;inset:0;}
.brand-media img{width:100%;height:100%;object-fit:cover;}
.brand-scrim{
  position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(8,52,80,.92) 0%,rgba(12,72,105,.80) 55%,rgba(20,120,170,.55) 100%);
}
.brand-inner{position:relative;z-index:2;}
.brand-lead{font-size:17px;color:rgba(255,255,255,.9);letter-spacing:.06em;margin-bottom:36px;}
.brand-lead em{font-style:normal;color:#fff;font-weight:500;}

.brand-list{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.16);counter-reset:bl;}
.brand-list li{background:rgba(255,255,255,.06);padding:34px 18px;text-align:center;backdrop-filter:blur(2px);transition:background .35s var(--ease);counter-increment:bl;}
.brand-list li:hover{background:rgba(255,255,255,.14);}
/* 韩文版有 6 项、中文版 5 项：编号由 CSS 计数器生成，隐藏项自动不计数 */
.bl-num{display:block;font-size:11px;letter-spacing:.28em;color:var(--blue-300);margin-bottom:14px;}
.bl-num::before{content:counter(bl,decimal-leading-zero);}
.bl-txt:empty{display:none;}
.bl-txt{font-size:15px;color:rgba(255,255,255,.94);letter-spacing:.05em;}
.bl-txt strong{font-weight:500;color:#fff;}

.brand-mid{
  max-width:860px;margin:44px 0 0;font-size:16.5px;line-height:2.05;
  color:#fff;letter-spacing:.04em;font-weight:400;
}

.brand-meaning{display:flex;align-items:center;justify-content:center;gap:44px;margin:64px 0 44px;}
.bm-item{text-align:center;}
.bm-char{
  display:block;font-size:66px;font-weight:300;color:#fff;line-height:1;letter-spacing:.1em;
}
.bm-item p{margin-top:16px;font-size:13px;letter-spacing:.24em;color:var(--blue-200);}
.bm-dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,.5);}

.brand-outro{
  text-align:center;font-size:15.5px;line-height:2.1;color:rgba(255,255,255,.86);letter-spacing:.06em;
}

/* ============================================================
   AWARDS
   ============================================================ */
.awards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.awards-grid li{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;display:flex;gap:16px;align-items:flex-start;
  transition:border-color .35s var(--ease),transform .35s var(--ease),box-shadow .35s var(--ease);
}
.awards-grid li:hover{
  border-color:var(--blue-300);transform:translateY(-3px);box-shadow:0 10px 30px rgba(14,58,87,.07);
}
.aw-ic{flex:0 0 20px;margin-top:5px;}
.aw-ic svg{width:20px;height:20px;fill:var(--blue-400);}
.awards-grid p{font-size:14.5px;line-height:1.85;color:var(--ink);letter-spacing:.02em;}
.aw-tag{
  display:inline-block;margin-left:8px;padding:2px 9px;border-radius:20px;
  background:var(--blue-100);color:var(--blue-700);font-size:11px;letter-spacing:.1em;vertical-align:2px;
}

/* ============================================================
   视觉分隔带
   ============================================================ */
.band{position:relative;overflow:hidden;background:var(--blue-900);padding:130px 0;}
.band>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;}
.band-scrim{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,42,66,.62) 0%,rgba(8,42,66,.40) 50%,rgba(8,42,66,.68) 100%);
}
.band-inner{position:relative;z-index:2;text-align:center;}
.band-en{font-size:11px;letter-spacing:.44em;color:var(--blue-300);font-weight:500;}
.band-cn{
  margin-top:20px;font-size:clamp(22px,3vw,34px);font-weight:300;letter-spacing:.3em;color:#fff;
}
.band-line{display:block;width:44px;height:1px;background:rgba(255,255,255,.45);margin:28px auto 0;}

/* ============================================================
   CASES
   ============================================================ */
.case-highlight{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:56px;}
.case-highlight li{
  position:relative;overflow:hidden;border-radius:var(--radius);background:var(--blue-900);
}
.case-highlight img{width:100%;height:260px;object-fit:cover;transition:transform 1.1s var(--ease),opacity .5s var(--ease);opacity:.9;}
.case-highlight li:hover img{transform:scale(1.06);opacity:1;}
.ch-body{position:absolute;inset:auto 0 0 0;padding:26px 24px;background:linear-gradient(180deg,rgba(8,45,70,0),rgba(8,45,70,.88));}
.ch-num{display:block;font-size:34px;font-weight:300;color:#fff;letter-spacing:.02em;line-height:1.1;}
.ch-num span{font-size:14px;margin-left:4px;color:var(--blue-200);}
.ch-body p{margin-top:8px;font-size:13px;color:rgba(255,255,255,.9);letter-spacing:.03em;}

.case-tabs{margin-top:8px;}
.ct-bar{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px;}
.ct-btn{
  padding:10px 22px;border:1px solid var(--line);border-radius:40px;background:var(--white);
  font-size:13px;letter-spacing:.06em;color:var(--ink-2);
  transition:.3s var(--ease);
}
.ct-btn:hover{border-color:var(--blue-300);color:var(--blue-700);}
.ct-btn.is-active{background:var(--blue-600);border-color:var(--blue-600);color:#fff;}

.ct-panel{display:none;}
.ct-panel.is-active{display:block;animation:fadeUp .5s var(--ease);}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:none;}}

.case-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;}
.case-list li{
  position:relative;padding:14px 0 14px 22px;font-size:14.5px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.case-list li::before{
  content:"";position:absolute;left:0;top:23px;width:6px;height:1px;background:var(--blue-400);
}
.case-list b{color:var(--blue-700);font-weight:600;}
.case-note{
  display:inline-block;margin-left:8px;font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:20px;padding:1px 8px;
}

/* ============================================================
   SERVICE
   ============================================================ */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.sv-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:40px 32px 36px;transition:.4s var(--ease);
}
.sv-card:hover{
  border-color:var(--blue-300);box-shadow:0 14px 40px rgba(14,58,87,.07);transform:translateY(-4px);
}
.sv-ic{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:50%;background:var(--blue-100);margin-bottom:24px;
}
.sv-ic svg{width:22px;height:22px;fill:var(--blue-600);}
.sv-card h3{font-size:16.5px;font-weight:500;line-height:1.7;color:var(--blue-900);letter-spacing:.03em;margin-bottom:12px;}
.sv-card p{font-size:14px;color:var(--muted);line-height:1.95;}

/* ============================================================
   PRODUCTS
   ============================================================ */
.prod-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start;}
.prod-figure{margin:0;position:sticky;top:110px;}
.prod-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.prod-grid li{
  background:var(--white);padding:38px 20px;text-align:center;transition:background .35s var(--ease);
}
.prod-grid li:hover{background:var(--blue-100);}
.pd-ic svg{width:26px;height:26px;fill:var(--blue-500);margin:0 auto 16px;display:block;}
.prod-grid h3{font-size:15px;font-weight:500;color:var(--blue-900);letter-spacing:.06em;}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:0;border:1px solid var(--line);}
.contact-figure{margin:0;}
.contact-figure img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);}
.contact-panel{padding:56px 56px;background:var(--blue-50);}
.cp-logo{height:34px;width:auto;margin-bottom:24px;}
.cp-name{font-size:20px;font-weight:500;color:var(--blue-900);letter-spacing:.05em;}
.cp-name-en{margin-top:6px;font-size:11px;letter-spacing:.26em;color:var(--muted);}
.cp-info{margin:32px 0 32px;border-top:1px solid var(--line);}
.cp-info>div{display:grid;grid-template-columns:132px 1fr;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);}
.cp-info dt{font-size:13px;color:var(--muted);letter-spacing:.06em;}
.cp-info dd{font-size:14.5px;color:var(--ink);line-height:1.8;}
.cp-info dd a{color:var(--blue-700);border-bottom:1px solid var(--blue-200);transition:.25s var(--ease);}
.cp-info dd a:hover{color:var(--blue-500);border-color:var(--blue-500);}

.cp-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;}
.btn{
  display:inline-block;padding:13px 34px;border-radius:2px;font-size:13px;letter-spacing:.14em;
  transition:.3s var(--ease);
}
.btn-primary{background:var(--blue-600);color:#fff;}
.btn-primary:hover{background:var(--blue-700);}
.btn-ghost{border:1px solid var(--blue-300);color:var(--blue-700);}
.btn-ghost:hover{background:var(--white);border-color:var(--blue-500);}
.cp-site{font-size:12px;letter-spacing:.28em;color:var(--blue-500);}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--blue-900);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;}
/* 页脚 logo：中文版 29px（+20%），EN / 한국어 25px（+5%） */
.ft-logo{height:25px;width:auto;margin-bottom:18px;}
.ft-logo-zh{display:none;}
html[lang="zh-CN"] .ft-logo{height:29px;margin-bottom:16px;}
html[lang="zh-CN"] .ft-logo-zh{display:block;}
html[lang="zh-CN"] .ft-logo-intl{display:none;}
.ft-slogan{font-size:13px;letter-spacing:.24em;color:#fff;margin-bottom:18px;}
.ft-meta{font-size:12.5px;line-height:2;color:rgba(255,255,255,.6);}
.ft-right{display:flex;flex-direction:column;gap:10px;text-align:right;font-size:13.5px;}
.ft-right a{transition:color .25s var(--ease);}
.ft-right a:hover{color:#fff;}
.ft-top{margin-top:12px;font-size:11px;letter-spacing:.2em;color:var(--blue-300);}
.ft-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);}
.ft-bottom small{font-size:11.5px;letter-spacing:.1em;color:rgba(255,255,255,.45);}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1080px){
  .wrap{padding:0 32px;}
  .nav{gap:24px;}
  .nav-link{font-size:12px;letter-spacing:.12em;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .awards-grid{grid-template-columns:repeat(2,1fr);}
  .service-grid{grid-template-columns:repeat(2,1fr);}
  .about-grid,.history-layout,.prod-layout{gap:44px;}
}

@media (max-width:900px){
  .nav-toggle{display:flex;}
  .nav{
    position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:var(--white);border-bottom:1px solid var(--line);
    max-height:0;overflow:hidden;transition:max-height .45s var(--ease);
  }
  .nav.is-open{max-height:420px;}
  .nav-link{padding:16px 22px;border-top:1px solid var(--line);font-size:13px;letter-spacing:.2em;}
  .nav-link::after{display:none;}
  .nav-toggle{order:3;margin-left:0;}
  .brand-logo{order:1;margin-right:auto;}
  .lang-switch{order:2;margin-left:0;}
  .lang-btn{padding:5px 10px;font-size:11px;}

  .about-grid{grid-template-columns:1fr;}
  .history-layout{grid-template-columns:1fr;}
  .prod-layout{grid-template-columns:1fr;}
  .about-figure,.history-figure,.prod-figure{position:static;}
  .contact-layout{grid-template-columns:1fr;}
  .contact-figure img{aspect-ratio:16/10;}
  .case-highlight{grid-template-columns:1fr;}
  .case-list{grid-template-columns:1fr;}
  .brand-list{grid-template-columns:repeat(3,1fr);}
  .section{padding:88px 0;}
  .sec-title{font-size:28px;}
}

@media (max-width:640px){
  .wrap{padding:0 22px;}
  body{font-size:15px;}
  .hero{min-height:88vh;}
  .hero-en{letter-spacing:.1em;}
  .hero-cn{letter-spacing:.28em;}
  .hero-chips li{font-size:11px;padding:7px 13px;}
  .scroll-cue{display:none;}
  .stats{grid-template-columns:1fr;}
  .awards-grid,.service-grid,.prod-grid{grid-template-columns:1fr;}
  .brand-list{grid-template-columns:repeat(2,1fr);}
  .brand-meaning{gap:28px;}
  .bm-char{font-size:52px;}
  .contact-panel{padding:38px 24px;}
  .cp-info>div{grid-template-columns:1fr;gap:4px;}
  .footer-inner{flex-direction:column;}
  .ft-right{text-align:left;}
  .timeline li{grid-template-columns:72px 1fr;gap:18px;}
  .timeline li::before{left:72px;}
  .tl-year{font-size:18px;padding-right:18px;}
  .tl-body{padding-left:18px;}
  .ct-btn{padding:9px 16px;font-size:12px;}
}

/* ============================================================
   中文版：字重统一为两档 400 / 500
   苹方 / 微软雅黑无真实 Light(300)，浏览器合成会发虚断裂；
   中文下 500/600 又是合成加粗会发糊。故全部收敛：
     400 = 正文 / 标题 / 数字 / 导航默认态
     500 = 内联强调(strong/em/b) 与激活态（苹方 Medium 为真实字重）
   层次改用字号、字距、颜色营造，不靠字重。
   ============================================================ */
html[lang="zh-CN"] .hero-en,
html[lang="zh-CN"] .hero-cn,
html[lang="zh-CN"] .stat-num,
html[lang="zh-CN"] .tl-year,
html[lang="zh-CN"] .bm-char,
html[lang="zh-CN"] .band-cn,
html[lang="zh-CN"] .ch-num,
html[lang="zh-CN"] .tl-body h3,
html[lang="zh-CN"] .sv-card h3,
html[lang="zh-CN"] .prod-grid h3,
html[lang="zh-CN"] .cp-name,
html[lang="zh-CN"] .cp-name-en,
html[lang="zh-CN"] .nav-link,
html[lang="zh-CN"] .sec-title,
html[lang="zh-CN"] .hero-eyebrow{font-weight:400;}

/* 英文小眉标：纯拉丁字符，保留 500 做层次不影响中文 */
html[lang="zh-CN"] .sec-eyebrow{font-weight:500;}
html[lang="zh-CN"] .band-en{font-weight:400;}

/* 内联强调：统一 500，消除 600 的合成加粗 */
html[lang="zh-CN"] strong,
html[lang="zh-CN"] b,
html[lang="zh-CN"] em{font-weight:500;}
html[lang="zh-CN"] .about-text strong,
html[lang="zh-CN"] .bl-txt strong,
html[lang="zh-CN"] .brand-lead em,
html[lang="zh-CN"] .case-list b{font-weight:500;}

/* 激活态：改用颜色 + 中文字重 500，避免 600 */
html[lang="zh-CN"] .nav-link.is-active,
html[lang="zh-CN"] .lang-btn.is-active{font-weight:500;}
html[lang="zh-CN"] .aw-tag{font-weight:400;}
html[lang="zh-CN"] .stat-unit,
html[lang="zh-CN"] .stat-label{font-weight:400;}

/* ---------- 卡片描述文案（英文版有，中韩版为空自动隐藏） ---------- */
.sv-desc{margin-top:16px;font-size:13.5px;line-height:1.95;color:var(--muted);font-weight:400;letter-spacing:.01em;}
.pd-desc{margin-top:10px;font-size:13px;line-height:1.9;color:var(--muted);font-weight:400;}
.sec-sub{max-width:760px;margin:22px auto 0;font-size:14.5px;line-height:1.95;color:var(--muted);font-weight:400;letter-spacing:.02em;}
html[lang="zh-CN"] .sv-desc,
html[lang="zh-CN"] .pd-desc,
html[lang="zh-CN"] .sec-sub{font-weight:400;}


.cp-service{
  margin-top:28px;padding:20px 22px;
  background:var(--blue-50);border-left:2px solid var(--blue-500);
  border-radius:var(--radius);
  font-size:14.5px;line-height:2.0;color:var(--ink);
  font-weight:600;letter-spacing:.01em;
}
.cp-service .cs-line{display:block;}
.cp-service .cs-note{display:block;font-size:13.5px;color:var(--ink-2);margin-bottom:8px;}
.cp-service .cs-label{margin-right:10px;}
.cp-service .cs-second{margin-top:8px;}
.cp-service a{color:var(--blue-700);border-bottom:1px solid transparent;transition:border-color .3s var(--ease);}
.cp-service a:hover{border-bottom-color:var(--blue-500);}
.cp-service strong{font-weight:700;}
/* 中文下苹方/雅黑的 600 为真实 Semibold/Bold，不触发合成加粗 */
html[lang="zh-CN"] .cp-service,
html[lang="zh-CN"] .cp-service a,
html[lang="zh-CN"] .cp-service strong{font-weight:600;}
html[lang="zh-CN"] .cp-service strong{font-weight:700;}

/* ---------- 页脚：分语言服务联系方式（◎ 分组 + 加粗） ---------- */
.ft-service{
  margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.16);
  font-size:14px;line-height:2.0;color:#fff;font-weight:600;letter-spacing:.01em;
}
.ft-service .fs-group{display:flex;gap:12px;align-items:flex-start;}
.ft-service .fs-group + .fs-group{margin-top:10px;}
.ft-service .fs-head{flex:0 0 auto;font-weight:700;}
.ft-service .fs-body{display:flex;flex-direction:column;min-width:0;}
.ft-service .fs-line{display:block;}
.ft-service .fs-key{margin-right:8px;font-weight:700;}
.ft-service a{color:#fff;border-bottom:1px solid rgba(255,255,255,.35);transition:border-color .3s var(--ease);word-break:break-all;}
.ft-service a:hover{border-bottom-color:#fff;}
.ft-service strong{font-weight:700;}
html[lang="zh-CN"] .ft-service,
html[lang="zh-CN"] .ft-service a,
html[lang="zh-CN"] .ft-service .fs-head,
html[lang="zh-CN"] .ft-service .fs-key{font-weight:600;}
html[lang="zh-CN"] .ft-service .fs-head{font-weight:700;}
/* 移动端：页脚窄栏内联系方式整体换行显示，避免长文本撑破布局 */
@media (max-width:768px){
  .ft-service{font-size:13.5px;}
  .ft-service .fs-group{flex-direction:column;gap:2px;}
  .ft-service .fs-head{margin-bottom:2px;}
  .ft-service .fs-key{margin-right:6px;}
  .ft-right{max-width:100%;overflow-wrap:anywhere;}
}
/* 英文页脚：说明句独占一行，邮箱两行左对齐 */
.ft-service .fs-group-block{flex-direction:column;align-items:flex-start;gap:10px;}
.ft-service .fs-group-block .fs-head{margin-bottom:2px;}
.ft-service .fs-group-block .fs-body{flex-direction:row;gap:10px;align-items:flex-start;}
.ft-service .fs-mails{display:flex;flex-direction:column;min-width:0;text-align:left;}
.ft-service .fs-mails .fs-line{display:block;}
.ft-service .fs-group-block .fs-key{flex:0 0 auto;margin-right:0;padding-top:0;}
/* 多行邮箱彼此左对齐（不受页脚右对齐影响） */
.ft-service .fs-body{text-align:left;}