/* style.css — 页面级样式 · 仅引用 design-tokens.css 变量，禁止硬编码颜色 */

/* ================= Reset & Base ================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  font-size:16px;line-height:1.75;
  color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;background:none;border:none;cursor:pointer;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
::selection{background:var(--coral);color:var(--on-accent)}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.section{padding:var(--section) 0}
.section-sm{padding:var(--section-sm) 0}
.section--dark{background:var(--ink);color:var(--on-dark)}

/* ================= i18n 双语 ================= */
html[lang="zh"] .i18n .en{display:none}
html[lang="en"] .i18n .zh{display:none}
html[lang="en"] .i18n{letter-spacing:.01em}

/* ================= 排版工具 ================= */
.display{font-family:var(--font-display)}
.mono{font-family:var(--font-mono)}
.center{text-align:center}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}.mt-4{margin-top:40px}.mt-5{margin-top:64px}

/* silk 工艺标签：旅行丝带风格 */
.silk{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;
  color:var(--coral-deep);background:var(--coral-soft);
  border:1px dashed var(--coral);
  padding:6px 14px;border-radius:var(--radius-full);
  text-transform:uppercase;white-space:nowrap;
}
.section--dark .silk{color:var(--coral-on-dark);background:rgba(255,93,93,.14);border-color:rgba(255,181,69,.4)}
.silk::before{content:"✈";color:var(--teal);font-size:10px}

/* 区块标题 */
.sec-head{max-width:780px;margin:0 auto var(--section-sm);text-align:center}
.sec-head--left{margin:0 0 var(--section-sm);text-align:left}
.sec-title{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(30px,3.6vw,46px);line-height:1.22;
  margin-top:18px;color:var(--text);letter-spacing:.2px;
}
.sec-title em{font-style:normal;color:var(--coral)}
.section--dark .sec-title{color:var(--on-dark)}
.section--dark .sec-title em{color:var(--sun)}
.sec-sub{margin-top:16px;color:var(--muted);font-size:17px}
.section--dark .sec-sub{color:var(--on-dark-muted)}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:700;font-size:15px;line-height:1;
  padding:16px 30px;border-radius:var(--radius-full);
  border:1px solid transparent;transition:all var(--dur) var(--ease);
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-coral{background:var(--coral);color:var(--on-accent);box-shadow:var(--shadow-lg)}
.btn-coral:hover{background:var(--coral-deep);transform:translateY(-2px)}
.btn-teal{background:var(--teal);color:var(--on-accent);box-shadow:var(--shadow-teal)}
.btn-teal:hover{background:var(--teal-deep);transform:translateY(-2px)}
.btn-outline{border-color:var(--border-strong);color:var(--text);background:var(--surface)}
.btn-outline:hover{border-color:var(--coral);color:var(--coral);transform:translateY(-2px)}
.btn-light{background:var(--on-accent);color:var(--coral-deep)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ghost-dark{border-color:var(--on-dark-border);color:var(--on-dark)}
.btn-ghost-dark:hover{border-color:var(--on-dark-muted);background:rgba(255,255,255,.05)}
.btn-sm{padding:10px 20px;font-size:14px}

/* ================= 头部导航 ================= */
main{min-height:62vh}
section[id]{scroll-margin-top:calc(var(--header-h) + 16px)}

.site-header{
  position:fixed;inset:0 0 auto;z-index:100;
  background:rgba(255,249,245,.9);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  transition:background var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.site-header.scrolled{background:rgba(255,255,255,.96);box-shadow:var(--shadow-sm)}

.header-inner{height:var(--nav-h);display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand-mark{width:38px;height:38px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-weight:800;font-size:19px;letter-spacing:.02em;color:var(--text)}
.brand-en{font-family:var(--font-mono);font-size:10px;letter-spacing:.3em;color:var(--muted);text-transform:uppercase}

.main-nav{display:flex;gap:6px;margin-left:auto}
.nav-link{
  position:relative;padding:10px 16px;font-weight:600;font-size:15px;color:var(--muted);
  border-radius:var(--radius-sm);transition:color var(--dur) var(--ease);
}
.nav-link:hover{color:var(--coral)}
.nav-link.active{color:var(--coral);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:2px;height:3px;border-radius:2px;
  background:linear-gradient(90deg,var(--coral),var(--teal));
}

.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:var(--radius-full);border:1px solid var(--border-strong);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--text);
  background:var(--surface);transition:all var(--dur) var(--ease);
}
.lang-switch:hover{border-color:var(--coral);color:var(--coral)}
.lang-switch .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}

.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border-strong);align-items:center;justify-content:center}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);position:relative;transition:all var(--dur) var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--text);transition:all var(--dur) var(--ease)}
.nav-toggle span::before{top:-6px}.nav-toggle span::after{top:6px}
.nav-toggle.open span{background:transparent}
.nav-toggle.open span::before{top:0;transform:rotate(45deg)}
.nav-toggle.open span::after{top:0;transform:rotate(-45deg)}

/* ================= Hero ================= */
.hero{
  position:relative;padding:calc(var(--header-h) + 56px) 0 0;
  background:
    radial-gradient(900px 460px at 85% -10%,rgba(255,93,93,.14),transparent 60%),
    radial-gradient(700px 400px at 5% 25%,rgba(18,181,165,.1),transparent 55%),
    linear-gradient(180deg,var(--bg-top),var(--bg) 78%);
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:url('../img/hero-bg.png') center/cover no-repeat;
  opacity:.26;pointer-events:none;
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-bottom:64px}
.hero-title{font-family:var(--font-display);font-weight:800;font-size:clamp(36px,4.8vw,58px);line-height:1.14;letter-spacing:.2px;margin-top:22px}
.hero-title em{font-style:normal;color:var(--coral)}
.hero-sub{margin-top:22px;font-size:18px;color:var(--muted);max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.hero-trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:34px}
.trust-chip{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--muted);background:var(--surface);border:1px solid var(--border);
  padding:7px 13px;border-radius:var(--radius-full);
}
.trust-chip .ok{color:var(--teal)}

/* Hero 视觉：目的地卡片 */
.hero-visual{position:relative}
.trip-card{
  position:relative;border-radius:var(--radius-lg);background:var(--surface);
  padding:14px;box-shadow:var(--shadow-lg);overflow:hidden;border:1px solid var(--border);
}
.trip-photo{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);display:block;background:var(--teal-soft)}
.trip-meta{padding:16px 8px 10px}
.trip-meta .route{font-family:var(--font-display);font-weight:700;font-size:17px}
.trip-meta .route em{font-style:normal;color:var(--teal-deep);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em}
.trip-meta .tagline{margin-top:4px;font-size:13.5px;color:var(--muted)}

/* Hero 浮动标签 */
.fx{position:absolute;z-index:5;display:flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.95);border-radius:14px;box-shadow:var(--shadow-md);
  padding:11px 15px;font-size:13px;font-weight:700;backdrop-filter:blur(6px);
  animation:float 5.5s var(--ease) infinite}
.fx .ic{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:13px}
.fx small{display:block;font-weight:400;color:var(--muted);font-size:11px;font-family:var(--font-mono);letter-spacing:.04em}
.fx-1{top:-18px;left:-22px;animation-delay:.2s}
.fx-1 .ic{background:var(--coral-soft);color:var(--coral)}
.fx-2{bottom:26px;right:-20px;animation-delay:1.1s}
.fx-2 .ic{background:var(--teal-soft);color:var(--teal-deep)}
.fx-3{top:40%;right:-30px;animation-delay:2s}
.fx-3 .ic{background:var(--sun-soft);color:var(--sun-deep)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

/* ================= 数据统计条 ================= */
.stats-strip{
  position:relative;z-index:3;margin-top:8px;
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  display:grid;grid-template-columns:repeat(4,1fr);box-shadow:var(--shadow-sm);
}
.stat{display:flex;flex-direction:column;align-items:center;gap:2px;padding:30px 20px;text-align:center;border-left:1px solid var(--border)}
.stat:first-child{border-left:none}
.stat-num{font-family:var(--font-display);font-weight:800;font-size:clamp(30px,3vw,42px);line-height:1;color:var(--coral)}
.stat-num .unit{font-size:.52em;color:var(--muted);margin-left:2px;font-weight:600}
.stat-label{margin-top:10px;font-size:13.5px;color:var(--muted);letter-spacing:.02em}

/* ================= 服务卡片 ================= */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.svc-card{
  position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px 28px;overflow:hidden;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  display:flex;flex-direction:column;
}
.svc-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--coral),var(--teal));opacity:0;transition:opacity var(--dur) var(--ease)}
.svc-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.svc-card:hover::before{opacity:1}
.svc-icon{width:56px;height:56px;border-radius:16px;background:var(--coral-soft);color:var(--coral);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:16px;font-weight:700;letter-spacing:.02em;
  margin-bottom:20px}
.svc-card:nth-child(3n+2) .svc-icon{background:var(--teal-soft);color:var(--teal-deep)}
.svc-card:nth-child(3n+3) .svc-icon{background:var(--sun-soft);color:var(--sun-deep)}
.svc-title{font-family:var(--font-display);font-size:20px;font-weight:800;color:var(--text)}
.svc-desc{margin-top:10px;color:var(--muted);font-size:14.5px;flex:1}
.svc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.svc-more{display:inline-flex;align-items:center;gap:6px;margin-top:22px;font-weight:700;font-size:14px;color:var(--coral)}
.svc-more svg{width:15px;height:15px;transition:transform var(--dur) var(--ease)}
.svc-more:hover svg{transform:translateX(4px)}

/* 标签/芯片 */
.tag{display:inline-block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;
  color:var(--muted);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-full);padding:4px 11px}
.tag--coral{color:var(--coral-deep);background:var(--coral-soft);border-color:transparent}
.tag--teal{color:var(--teal-deep);background:var(--teal-soft);border-color:transparent}
.tag--sun{color:var(--sun-deep);background:var(--sun-soft);border-color:transparent}

/* ================= 目的地卡片 ================= */
.dest-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.dest-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;background:var(--surface);border:1px solid var(--border);
  display:flex;flex-direction:column;transition:all var(--dur) var(--ease)}
.dest-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.dest-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;background:var(--sun-soft)}
.dest-body{padding:20px 22px 24px}
.dest-name{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.dest-name h3{font-family:var(--font-display);font-size:19px;font-weight:800}
.dest-name .fl{font-family:var(--font-mono);font-size:12px;color:var(--teal-deep);letter-spacing:.06em}
.dest-desc{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7}
.dest-more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-weight:700;font-size:13.5px;color:var(--coral)}

/* ================= 流程步骤 ================= */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.flow-step{position:relative;padding:0 14px;text-align:center}
.flow-step::after{
  content:"";position:absolute;top:26px;left:calc(50% + 34px);width:calc(100% - 68px);height:2px;
  background:linear-gradient(90deg,var(--coral),var(--teal));opacity:.35;
}
.flow-step:last-child::after{display:none}
.flow-num{width:52px;height:52px;margin:0 auto;border-radius:50%;background:var(--surface);
  border:2px solid var(--coral);color:var(--coral);font-family:var(--font-display);font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}
.flow-step.done .flow-num{background:var(--coral);color:var(--on-accent)}
.flow-step.done:nth-child(odd) .flow-num{background:var(--teal);border-color:var(--teal)}
.flow-title{margin-top:18px;font-weight:700;font-size:15px}
.flow-sub{margin-top:6px;font-size:12.5px;color:var(--muted);line-height:1.5}

/* ================= 案例/评价 ================= */
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.story-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;transition:all var(--dur) var(--ease)}
.story-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.story-img{width:100%;aspect-ratio:16/10;object-fit:cover;display:block;background:var(--coral-soft)}
.story-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.story-route{font-family:var(--font-mono);font-size:11.5px;color:var(--coral);letter-spacing:.1em;text-transform:uppercase}
.story-title{font-family:var(--font-display);font-weight:800;font-size:17.5px;margin-top:8px}
.story-desc{margin-top:8px;font-size:13.5px;color:var(--muted);line-height:1.7;flex:1}
.story-author{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:16px;border-top:1px solid var(--border)}
.story-author .av{width:38px;height:38px;border-radius:50%;background:var(--teal-soft);color:var(--teal-deep);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:14px}
.story-author .who{font-weight:700;font-size:13.5px}
.story-author .when{font-size:12px;color:var(--muted)}

/* ================= CTA 横幅 ================= */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:
    linear-gradient(120deg,rgba(28,37,48,.92),rgba(232,71,71,.78) 70%),
    url('../img/cta-bg.png') center/cover no-repeat;
  padding:64px 56px;display:flex;align-items:center;justify-content:space-between;gap:40px;color:var(--on-dark)}
.cta-band::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:30px 30px;pointer-events:none}
.cta-band .glow{background:rgba(255,181,69,.3);width:320px;height:320px;top:-140px;right:-80px;filter:blur(70px)}
.cta-title{font-family:var(--font-display);font-size:clamp(26px,2.8vw,36px);font-weight:800;line-height:1.3;position:relative;z-index:2}
.cta-sub{margin-top:10px;color:rgba(255,255,255,.8);font-size:15.5px;position:relative;z-index:2}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;flex:none}
.cta-actions .btn-line{display:inline-flex;align-items:center;gap:10px;padding:15px 28px;border-radius:var(--radius-full);border:1px solid rgba(255,255,255,.35);color:var(--on-dark);font-weight:700;transition:all var(--dur) var(--ease)}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.1)}

/* ================= 页头（内页） ================= */
.page-hero{padding:calc(var(--header-h) + 64px) 0 56px;background:
  radial-gradient(760px 380px at 88% -8%,rgba(255,93,93,.14),transparent 60%),
  radial-gradient(600px 320px at 4% 30%,rgba(18,181,165,.1),transparent 55%),
  linear-gradient(180deg,var(--bg-top),var(--bg) 82%)}
.page-hero h1{font-family:var(--font-display);font-weight:800;font-size:clamp(32px,4.2vw,50px);line-height:1.18;margin-top:14px}
.page-hero h1 em{font-style:normal;color:var(--coral)}
.page-hero .lead{margin-top:16px;font-size:17px;color:var(--muted);max-width:620px}
.crumbs{font-size:13px;color:var(--muted)}
.crumbs a{color:var(--coral)}
.crumbs a:hover{text-decoration:underline}

/* ================= 深色区块 / 蓝图网格 ================= */
.section--dark{position:relative;overflow:hidden}
.section--dark .bg-grid{position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(79,195,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(79,195,255,.05) 1px,transparent 1px);
  background-size:44px 44px}
.section--dark .container{position:relative;z-index:2}
.glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;opacity:.5}
.glow-coral{background:rgba(255,93,93,.35);width:420px;height:420px;top:-120px;right:-80px}
.glow-teal{background:rgba(18,181,165,.28);width:360px;height:360px;bottom:-140px;left:-100px}

/* ================= 资质徽章带 ================= */
.cert-strip{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}
.cert-badge{display:inline-flex;align-items:center;gap:10px;background:var(--surface);
  border:1px solid var(--border);border-radius:14px;padding:12px 20px;
  font-family:var(--font-display);font-weight:600;letter-spacing:.05em;color:var(--text);box-shadow:var(--shadow-sm)}
.cert-badge .cb{width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,var(--coral),var(--teal));display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:11px;color:var(--on-accent)}

/* ================= 关于页 ================= */
.value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.value-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 26px;transition:all var(--dur) var(--ease)}
.value-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.value-card .big{font-family:var(--font-display);font-weight:800;font-size:34px;color:var(--coral);line-height:1}
.value-card .big small{font-size:15px;color:var(--muted);font-weight:600}
.value-card .lab{margin-top:10px;font-weight:700;font-size:15px}
.value-card .sub{margin-top:4px;font-size:12.5px;color:var(--muted)}

/* ================= 联系表单 ================= */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:start}
.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow-sm)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:8px}
.field .req{color:var(--coral)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1px solid var(--border-strong);border-radius:var(--radius-sm);
  background:var(--bg);transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--coral);box-shadow:0 0 0 3px rgba(255,93,93,.14);background:var(--surface)}
.field textarea{resize:vertical;min-height:130px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:6px}

.info-card{background:var(--ink);color:var(--on-dark);border-radius:var(--radius-lg);padding:36px 32px;position:relative;overflow:hidden}
.info-card::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:30px 30px;pointer-events:none}
.info-card .ic-h{font-family:var(--font-display);font-weight:800;font-size:22px;position:relative}
.info-item{display:flex;gap:14px;margin-top:22px;position:relative}
.info-item .ii-ic{width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);border:1px solid var(--on-dark-border);display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:14px;flex:none;color:var(--sun)}
.info-item .ii-k{font-size:12px;color:var(--on-dark-muted);font-family:var(--font-mono);letter-spacing:.08em}
.info-item .ii-v{font-weight:700;font-size:15px;margin-top:2px}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink);color:var(--on-dark-muted);padding-top:64px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .brand-cn{color:var(--on-dark)}
.footer-brand .brand-en{color:var(--on-dark-muted)}
.footer-about{margin-top:16px;font-size:13.5px;color:var(--on-dark-muted);max-width:300px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social a{width:40px;height:40px;border-radius:12px;background:rgba(255,255,255,.06);border:1px solid var(--on-dark-border);
  display:flex;align-items:center;justify-content:center;font-family:var(--font-mono);font-size:13px;color:var(--on-dark);transition:all var(--dur) var(--ease)}
.footer-social a:hover{background:var(--coral);border-color:var(--coral);transform:translateY(-2px)}
.footer-col h4{font-family:var(--font-display);font-size:15px;color:var(--on-dark);margin-bottom:18px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:13.5px;color:var(--on-dark-muted);transition:color var(--dur) var(--ease)}
.footer-col ul a:hover{color:var(--sun)}
.footer-bottom{border-top:1px solid var(--on-dark-border);padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12.5px}

/* ================= 弹窗 ================= */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px;
  background:rgba(20,27,36,.6);backdrop-filter:blur(6px)}
.modal.open{display:flex}
.modal-box{background:var(--surface);border-radius:var(--radius-lg);max-width:520px;width:100%;padding:34px 32px;position:relative;box-shadow:var(--shadow-lg);max-height:90vh;overflow-y:auto}
.modal-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;background:var(--bg);border:1px solid var(--border);font-size:18px;display:flex;align-items:center;justify-content:center;color:var(--muted);transition:all var(--dur) var(--ease)}
.modal-close:hover{background:var(--coral);color:var(--on-accent);border-color:var(--coral)}
.modal-title{font-family:var(--font-display);font-weight:800;font-size:24px}
.modal-sub{margin-top:8px;color:var(--muted);font-size:14px}

/* ================= 深色区块 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.split .sp-t h3{font-family:var(--font-display);font-weight:800;font-size:28px;line-height:1.3}
.split .sp-t p{margin-top:14px;color:var(--muted);font-size:15.5px}
.split .sp-photo{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);display:block;box-shadow:var(--shadow-md);background:var(--teal-soft)}
.split.rev .sp-photo{order:2}

/* ================= 响应式 ================= */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:64px}
  .hero-visual{max-width:560px;margin:0 auto}
  .fx-1{left:-8px}.fx-2{right:-8px}.fx-3{right:6px}
  .flow{grid-template-columns:repeat(2,1fr);gap:34px 0}
  .flow-step::after{display:none}
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .dest-grid{grid-template-columns:repeat(2,1fr)}
  .story-grid{grid-template-columns:repeat(2,1fr)}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:40px}
  .contact-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
}
@media (max-width:760px){
  :root{--section:72px;--header-h:72px}
  .main-nav{
    position:fixed;top:var(--header-h);left:0;right:0;bottom:0;
    background:rgba(255,255,255,.98);flex-direction:column;gap:4px;padding:20px;
    transform:translateX(100%);transition:transform .32s var(--ease);margin:0;
  }
  .main-nav.open{transform:none}
  .nav-link{padding:16px;font-size:17px;border-bottom:1px solid var(--border);border-radius:0}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .stats-strip{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:none}
  .stat{padding:22px 12px}
  .svc-grid{grid-template-columns:1fr}
  .dest-grid{grid-template-columns:1fr}
  .story-grid{grid-template-columns:1fr}
  .value-grid{grid-template-columns:1fr 1fr}
  .cta-band{flex-direction:column;padding:48px 30px;text-align:center}
  .form-row{grid-template-columns:1fr}
  .form-card{padding:28px 22px}
  .footer-top{grid-template-columns:1fr}
  .hero{padding-top:calc(var(--header-h) + 40px)}
  .fx-3{display:none}
}
@media (max-width:440px){
  .value-grid{grid-template-columns:1fr}
  .hero-cta .btn{width:100%}
}