/* ===== 自由视野之旅 · 公共样式 v3 ===== */
:root{
  --terra:#6b4a2b;        /* 深可可棕 主色（原 #b4652f 偏亮，改为更深更高级） */
  --terra-l:#a07c4a;
  --terra-bg:#ede0cf;
  --pine:#23403a;         /* 松绿 */
  --pine-l:#3a5f57;
  --ivory:#faf7f2;        /* 象牙白底 */
  --sand:#f0e9de;
  --ink:#201b16;
  --ink-2:#6b6156;
  --line:#e6ddcf;
  --white:#fff;
  --serif:"Songti SC","SimSun","Noto Serif SC",Georgia,serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--ivory);line-height:1.8;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1160px;margin:0 auto;padding:0 28px}

/* ===== 顶部 ===== */
.topbar{position:sticky;top:0;z-index:100;background:rgba(250,247,242,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:14px}
.logo-mark{width:40px;height:40px;border:1.5px solid var(--terra);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:17px;color:var(--terra);font-family:var(--serif);font-weight:700}
.logo-text{font-size:17px;font-weight:600;color:var(--pine);letter-spacing:2px}
.logo-text small{display:block;font-size:9px;font-weight:400;color:var(--terra);letter-spacing:5px;margin-top:-2px;text-transform:uppercase}
nav ul{display:flex;gap:36px;list-style:none}
nav ul a{color:var(--ink-2);font-size:14px;letter-spacing:1px;transition:color .25s;position:relative}
nav ul a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1.5px;background:var(--terra);transition:width .3s}
nav ul a:hover{color:var(--ink)}
nav ul a:hover::after{width:100%}
nav ul a.active{color:var(--ink)}
nav ul a.active::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:2px;font-size:13.5px;font-weight:600;letter-spacing:2px;transition:all .3s;cursor:pointer;border:0}
.btn-terra{background:var(--terra);color:#fff}
.btn-terra:hover{background:var(--terra-l);transform:translateY(-1px)}
.btn-ghost{border:1px solid rgba(255,255,255,.55);color:#fff;background:transparent}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-pine{border:1px solid var(--pine);color:var(--pine);background:transparent}
.btn-pine:hover{background:var(--pine);color:#fff}
.menu-toggle{display:none;background:none;border:0;color:var(--pine);font-size:24px;cursor:pointer}
.lang-link{font-size:12px;letter-spacing:2px;color:var(--ink-2);padding:8px 14px;border:1px solid var(--line);font-weight:600;transition:all .25s}
.lang-link:hover{color:var(--terra);border-color:var(--terra)}

/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;color:#fff}
.hero-bg{position:absolute;inset:0;background:url('img/v3/hero.jpg') center/cover no-repeat;z-index:1}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(20,32,28,.82) 0%,rgba(20,32,28,.55) 46%,rgba(107,74,43,.3) 100%)}
.hero .container{position:relative;z-index:2;padding:150px 28px 130px;width:100%}
.hero-tag{display:inline-flex;align-items:center;gap:12px;font-size:11px;letter-spacing:5px;color:var(--terra-l);margin-bottom:34px;font-weight:600}
.hero-tag::before,.hero-tag::after{content:"";width:34px;height:1px;background:var(--terra-l);opacity:.7}
.hero h1{font-family:var(--serif);font-size:58px;font-weight:700;line-height:1.3;letter-spacing:3px;margin-bottom:24px;max-width:820px}
.hero h1 em{font-style:normal;color:var(--terra-l)}
.hero p.sub{font-size:16px;font-weight:300;color:rgba(255,255,255,.88);max-width:600px;margin-bottom:44px;letter-spacing:1px;line-height:2}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;margin-top:80px;border-top:1px solid rgba(255,255,255,.18);padding-top:36px;flex-wrap:wrap}
.hero-stats .stat{flex:1;min-width:150px;padding:0 26px;border-right:1px solid rgba(255,255,255,.14)}
.hero-stats .stat:first-child{padding-left:0}
.hero-stats .stat:last-child{border-right:0}
.hero-stats .stat b{font-size:34px;font-weight:600;color:#fff;display:block;line-height:1.1;font-family:var(--serif)}
.hero-stats .stat b i{font-style:normal;font-size:18px;color:var(--terra-l);margin-left:2px;font-weight:500;font-family:"PingFang SC","Microsoft YaHei",sans-serif}
.hero-stats .stat span{font-size:11.5px;color:rgba(255,255,255,.7);letter-spacing:2px;text-transform:uppercase;margin-top:6px;display:block}

/* ===== 内页 Hero ===== */
.page-hero{position:relative;overflow:hidden;color:#fff}
.page-hero .hero-bg{position:absolute;inset:0;background:center/cover no-repeat;z-index:1}
.page-hero .hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(20,32,28,.85) 0%,rgba(20,32,28,.62) 55%,rgba(180,101,47,.3) 100%)}
.page-hero .container{position:relative;z-index:2;padding:96px 28px 84px;text-align:center}
.page-hero .hero-tag{display:inline-flex;align-items:center;gap:12px;font-size:11px;letter-spacing:5px;color:var(--terra-l);margin-bottom:24px;font-weight:600}
.page-hero .hero-tag::before,.page-hero .hero-tag::after{content:"";width:34px;height:1px;background:var(--terra-l);opacity:.7}
.page-hero h1{font-family:var(--serif);font-size:44px;font-weight:700;line-height:1.35;letter-spacing:3px;margin-bottom:16px}
.page-hero h1 em{font-style:normal;color:var(--terra-l)}
.page-hero p{font-size:15px;font-weight:300;color:rgba(255,255,255,.85);max-width:640px;margin:0 auto;letter-spacing:1px;line-height:2}

/* ===== 板块通用 ===== */
section{padding:96px 0}
.sec-head{max-width:680px;margin:0 auto 60px;text-align:center}
.sec-head .kicker{font-size:11px;letter-spacing:6px;color:var(--terra);margin-bottom:18px;text-transform:uppercase;font-weight:600}
.sec-head h2{font-family:var(--serif);font-size:32px;font-weight:700;color:var(--pine);letter-spacing:3px;line-height:1.4}
.sec-head h2 em{font-style:normal;color:var(--terra)}
.sec-head p{color:var(--ink-2);margin-top:16px;font-size:15px;line-height:2}

/* ===== 面包屑 ===== */
.crumb{background:var(--sand);border-bottom:1px solid var(--line)}
.crumb .container{padding-top:16px;padding-bottom:16px;font-size:12.5px;color:var(--ink-2);letter-spacing:1px}
.crumb a{color:var(--terra)}
.crumb a:hover{color:var(--terra-l)}
.crumb span.sep{margin:0 10px;color:var(--line)}

/* ===== 行业卡片（首页同款） ===== */
.industry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:34px}
.industry-card{background:var(--white);border:1px solid var(--line);transition:all .45s;overflow:hidden}
.industry-card:hover{border-color:var(--terra-l);box-shadow:0 24px 60px rgba(32,27,22,.1);transform:translateY(-4px)}
.industry-card .img-wrap{position:relative;height:250px;overflow:hidden}
.industry-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s;filter:saturate(.92)}
.industry-card:hover .img-wrap img{transform:scale(1.05)}
.industry-card .badge{position:absolute;top:18px;left:18px;background:rgba(250,247,242,.92);backdrop-filter:blur(6px);color:var(--pine);padding:5px 14px;font-size:10px;letter-spacing:2.5px;font-weight:600}
.industry-card .body{padding:32px 32px 36px}
.industry-card .icon{font-size:26px;margin-bottom:14px;letter-spacing:0}
.industry-card h3{font-family:var(--serif);font-size:25px;font-weight:700;color:var(--pine);margin-bottom:12px;letter-spacing:2px}
.industry-card p{font-size:13.5px;color:var(--ink-2);margin-bottom:20px;line-height:1.9}
.industry-card .expos{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.industry-card .expos span{font-size:11px;color:var(--ink);background:var(--sand);padding:4px 12px;letter-spacing:1px;font-weight:500}
.industry-card .more{color:var(--terra);font-size:12px;font-weight:600;letter-spacing:2.5px;display:inline-flex;align-items:center;gap:8px;transition:gap .3s}
.industry-card .more::after{content:"——";font-size:11px;color:var(--terra-l)}
.industry-card:hover .more{gap:14px}

/* ===== 行业详情页 ===== */
.industry-detail{display:grid;grid-template-columns:1fr 1.4fr;gap:56px;align-items:start}
.industry-detail .side{position:sticky;top:110px}
.industry-detail .side .frame{border:1px solid var(--line);padding:10px;background:var(--white);margin-bottom:26px}
.industry-detail .side .frame img{width:100%}
.industry-detail .side .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.industry-detail .side .tag-row span{font-size:11px;color:var(--ink);background:var(--sand);padding:5px 14px;letter-spacing:1px;font-weight:600}
.industry-detail .side .cta-box{background:var(--pine);color:#fff;padding:28px;border-left:3px solid var(--terra)}
.industry-detail .side .cta-box h4{font-family:var(--serif);font-size:17px;margin-bottom:10px;color:#fff;letter-spacing:1px}
.industry-detail .side .cta-box p{font-size:12.5px;color:rgba(255,255,255,.7);margin-bottom:18px;line-height:1.9}
.industry-detail .main h2{font-family:var(--serif);font-size:26px;color:var(--pine);font-weight:700;letter-spacing:2px;margin:8px 0 16px}
.industry-detail .main h2.first{margin-top:0}
.industry-detail .main p{font-size:14.5px;color:var(--ink-2);line-height:2;margin-bottom:16px}
.industry-detail .main .lead{font-size:15.5px;color:var(--ink);line-height:2.1}
.expo-table{width:100%;border-collapse:collapse;margin:20px 0 30px;background:var(--white)}
.expo-table th{background:var(--pine);color:#fff;font-size:12px;letter-spacing:2px;padding:14px 16px;text-align:left;font-weight:600}
.expo-table td{border-bottom:1px solid var(--line);padding:14px 16px;font-size:13.5px;vertical-align:top}
.expo-table td b{color:var(--pine)}
.expo-table td .d{color:var(--terra);font-weight:600;white-space:nowrap}
.expo-table tr:hover td{background:var(--ivory)}
.info-list{margin:16px 0 30px;padding:0;list-style:none}
.info-list li{position:relative;padding:0 0 0 30px;margin-bottom:14px;font-size:14px;color:var(--ink-2);line-height:1.9}
.info-list li::before{content:"·";position:absolute;left:8px;color:var(--terra);font-size:22px;top:-3px}

/* ===== 日历页 ===== */
.cal-year{margin-bottom:64px}
.cal-year:last-child{margin-bottom:0}
.cal-year .year-label{display:flex;align-items:center;gap:20px;margin-bottom:34px}
.cal-year .year-label b{font-family:var(--serif);font-size:30px;color:var(--pine);letter-spacing:3px}
.cal-year .year-label span{flex:1;height:1px;background:var(--line)}
.cal-month{margin-bottom:44px}
.cal-month .m-title{font-family:var(--serif);font-size:19px;color:var(--terra);letter-spacing:3px;margin-bottom:18px;display:flex;align-items:center;gap:14px}
.cal-month .m-title::after{content:"";flex:1;height:1px;background:var(--line)}
.cal-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.cal-card{display:flex;gap:20px;background:var(--white);border:1px solid var(--line);padding:22px;transition:all .3s}
.cal-card:hover{border-color:var(--terra-l);box-shadow:0 14px 34px rgba(32,27,22,.08);transform:translateY(-2px)}
.cal-card .date-block{flex-shrink:0;width:64px;height:64px;background:var(--sand);display:flex;flex-direction:column;align-items:center;justify-content:center}
.cal-card .date-block b{font-family:var(--serif);font-size:24px;color:var(--pine);line-height:1}
.cal-card .date-block span{font-size:10.5px;color:var(--terra);letter-spacing:1px;margin-top:4px}
.cal-card .c-body h4{font-size:15.5px;color:var(--pine);font-weight:600;letter-spacing:1px;margin-bottom:6px;line-height:1.5}
.cal-card .c-body .loc{font-size:12.5px;color:var(--ink-2);margin-bottom:8px}
.cal-card .c-body .meta{font-size:12px;color:var(--terra);font-weight:600}
.cal-card .c-body .desc{font-size:12.5px;color:var(--ink-2);margin-top:8px;line-height:1.8}

/* ===== 关于页 ===== */
.about-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:center;margin-bottom:72px}
.about-grid .img-border{border:1px solid var(--line);padding:10px;background:var(--white)}
.about-grid .img-border img{width:100%}
.about-grid .txt h2{font-family:var(--serif);font-size:28px;color:var(--pine);letter-spacing:2px;margin-bottom:20px;line-height:1.5}
.about-grid .txt h2 em{font-style:normal;color:var(--terra)}
.about-grid .txt p{font-size:14.5px;color:var(--ink-2);line-height:2.1;margin-bottom:14px}
.timeline-about{position:relative;max-width:760px;margin:0 auto 60px}
.timeline-about::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line)}
.tl-about-item{padding:0 0 34px 34px;position:relative}
.tl-about-item::before{content:"";position:absolute;left:-5.5px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--ivory);border:2px solid var(--terra)}
.tl-about-item .yr{font-family:var(--serif);font-size:16px;color:var(--terra);font-weight:700;letter-spacing:2px;margin-bottom:6px}
.tl-about-item h4{font-size:16px;color:var(--pine);font-weight:600;letter-spacing:1px;margin-bottom:8px}
.tl-about-item p{font-size:13.5px;color:var(--ink-2);line-height:1.9}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;align-items:start}
.contact-info .ci-item{display:flex;gap:18px;margin-bottom:30px;align-items:flex-start}
.contact-info .ci-icon{width:46px;height:46px;border:1px solid var(--terra);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--terra);font-size:17px;flex-shrink:0;font-family:var(--serif)}
.contact-info h3{font-size:15.5px;color:var(--pine);font-weight:600;letter-spacing:1px;margin-bottom:6px}
.contact-info p{font-size:13.5px;color:var(--ink-2);line-height:1.9}
.contact-form{background:var(--white);border:1px solid var(--line);padding:36px}
.contact-form h3{font-family:var(--serif);font-size:21px;color:var(--pine);letter-spacing:2px;margin-bottom:8px}
.contact-form .sub{font-size:13px;color:var(--ink-2);margin-bottom:28px}
.form-row{margin-bottom:20px}
.form-row label{display:block;font-size:12.5px;color:var(--pine);font-weight:600;letter-spacing:1px;margin-bottom:8px}
.form-row input,.form-row select,.form-row textarea{width:100%;padding:12px 14px;border:1px solid var(--line);background:var(--ivory);font-size:14px;color:var(--ink);font-family:inherit;outline:none;transition:border .25s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--terra)}
.form-row textarea{min-height:130px;resize:vertical}
.form-note{font-size:11.5px;color:var(--ink-2);margin-top:12px;letter-spacing:0.5px}

/* ===== 页脚 ===== */
footer{background:#182621;color:rgba(255,255,255,.6);padding:64px 0 30px}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:50px;margin-bottom:44px}
.foot-brand .logo-text{color:#fff;margin-bottom:14px}
.foot-brand p{font-size:13px;line-height:2;color:rgba(255,255,255,.55)}
.foot-links h4{color:var(--terra-l);font-size:11px;margin-bottom:20px;letter-spacing:3px;font-weight:600;text-transform:uppercase}
.foot-links ul{list-style:none}
.foot-links li{margin-bottom:12px;font-size:13px}
.foot-links a{color:rgba(255,255,255,.6);transition:color .25s}
.foot-links a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:26px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:11.5px;letter-spacing:1px;color:rgba(255,255,255,.45)}

/* ===== 响应式 ===== */
@media(max-width:960px){
  .industry-grid{grid-template-columns:1fr}
  .industry-detail{grid-template-columns:1fr;gap:40px}
  .industry-detail .side{position:static}
  .cal-cards{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .foot-top{grid-template-columns:1fr 1fr;gap:36px}
}
@media(max-width:720px){
  .page-hero h1{font-size:30px}
  .sec-head h2{font-size:25px}
  section{padding:70px 0}
  nav{display:none}
  nav.open{display:block;position:absolute;top:76px;left:0;right:0;background:var(--ivory);padding:20px 28px;box-shadow:0 10px 24px rgba(0,0,0,.08);z-index:99}
  nav.open ul{flex-direction:column;gap:18px}
  .menu-toggle{display:block}
  .foot-top{grid-template-columns:1fr}
  .expo-table{display:block;overflow-x:auto}
  .cal-month .m-title{font-size:16px}
}