/* theme293 探洞综合平台 - 深炭黑+苔藓青+矿脉金 */
:root{
  --c-bg:#0d1117;--c-bg-2:#161d26;--c-bg-3:#1f2832;
  --c-text:#e8edf2;--c-text-dim:#9aa5b1;--c-text-mute:#5d6b7a;
  --c-primary:#6b9a3d;--c-primary-d:#537c2d;
  --c-accent:#d4b96a;--c-accent-d:#b59648;
  --c-border:#2a3340;--c-border-l:#3a4554;
  --c-shadow:0 6px 24px rgba(0,0,0,0.42);
  --font-serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --font-sans:'IBM Plex Sans','Helvetica Neue',Arial,'PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--c-bg);color:var(--c-text);font-family:var(--font-sans);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{color:var(--c-accent);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;line-height:1.25;margin:0 0 .5em}
p{margin:0 0 1em}

/* 兜底：隐藏任何继承自其它主题的 #c08a8e 顶部色块 */
.note,.hk-header .note,.sg-header .note,.bp-header .note,.vw-header .note,.cs-header .note,.et-header .note,.bl-header .note,.cv-header .note,.cx-header .note,[style*="#c08a8e"],[style*="c08a8e"]{display:none !important}

/* A11y */
.skip-link{position:absolute;top:-40px;left:0;background:var(--c-primary);color:#fff;padding:8px 16px;z-index:999;border-radius:0 0 4px 0}
.skip-link:focus{top:0;color:#fff}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}

/* Header */
.cx-header{display:flex;align-items:center;justify-content:space-between;padding:18px 32px;background:var(--c-bg-2);border-bottom:1px solid var(--c-bg-3);position:sticky;top:0;z-index:50;flex-wrap:wrap;gap:12px}
.cx-logo{font-size:22px;font-weight:700;color:var(--c-primary);text-decoration:none}.cx-logo:hover{color:var(--c-primary)}
.cx-header nav{display:flex;gap:24px;flex-wrap:wrap}
.cx-header nav a{color:var(--c-text-dim);font-size:14px;letter-spacing:.04em;text-decoration:none}
.cx-header nav a:hover{color:var(--c-primary)}
.nav-toggle{display:none;background:var(--c-bg-3);color:var(--c-text);border:1px solid var(--c-border);padding:6px 12px;border-radius:4px;cursor:pointer}
@media(max-width:768px){.nav-toggle{display:block}.cx-header nav{display:none;width:100%;flex-direction:column;gap:8px}.cx-header nav.open,.cx-header nav:target{display:flex}}

/* Hero */
.cx-hero{min-height:62vh;display:flex;align-items:center;background-size:cover;background-position:center;color:#fff;padding:80px 32px}
.cx-hero-inner{max-width:1180px;margin:0 auto;width:100%}
.cx-hero-tag{display:inline-block;font-family:var(--font-sans);font-size:12px;letter-spacing:.32em;color:var(--c-accent);margin-bottom:18px;padding:6px 12px;border:1px solid var(--c-accent);border-radius:2px}
.cx-hero h1{font-size:54px;color:#fff;margin:0 0 18px;max-width:780px}
.cx-hero p{font-size:18px;color:rgba(232,237,242,.85);max-width:680px;margin:0 0 32px}
.cx-hero-btns{display:flex;gap:16px;flex-wrap:wrap}
.cx-btn-primary{display:inline-block;background:var(--c-primary);color:#fff;padding:12px 28px;border-radius:3px;font-weight:500;letter-spacing:.04em;border:none;cursor:pointer}
.cx-btn-primary:hover{background:var(--c-primary-d);color:#fff}
.cx-btn-ghost{display:inline-block;background:transparent;color:#fff;padding:12px 28px;border:1px solid rgba(255,255,255,.4);border-radius:3px;font-weight:500}
.cx-btn-ghost:hover{border-color:var(--c-accent);color:var(--c-accent)}
.cx-hero-mini{min-height:34vh;padding:60px 32px}

/* Ticker */
.cx-ticker{background:var(--c-bg-2);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);overflow:hidden;padding:14px 0}
.cx-ticker-track{display:inline-flex;gap:18px;white-space:nowrap;animation:cx-tick 38s linear infinite;font-family:var(--font-sans);font-size:12px;letter-spacing:.32em;color:var(--c-text-dim);padding-left:100%}
.cx-ticker-track span:nth-child(odd){color:var(--c-accent)}
@keyframes cx-tick{from{transform:translateX(0)}to{transform:translateX(-100%)}}

/* Section */
.cx-section{padding:72px 32px;max-width:1180px;margin:0 auto}
.cx-section-head{margin-bottom:42px;max-width:720px}
.cx-section-head span{display:block;font-size:12px;letter-spacing:.32em;color:var(--c-accent);margin-bottom:10px}
.cx-section-head h2{font-size:36px;color:var(--c-text)}
.cx-section-head p{color:var(--c-text-dim);font-size:16px}

/* Grid base */
.cx-gear-grid,.cx-skill-grid,.cx-trip-grid,.cx-photo-grid,.cx-list-grid,.cx-intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:992px){.cx-gear-grid,.cx-skill-grid,.cx-trip-grid,.cx-photo-grid,.cx-list-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cx-gear-grid,.cx-skill-grid,.cx-trip-grid,.cx-photo-grid,.cx-list-grid,.cx-intro-grid{grid-template-columns:1fr}}

/* Cards */
.cx-gear-card,.cx-skill-card,.cx-trip-card,.cx-list-card,.cx-photo-card,.cx-intro-card,.cx-safety-card,.cx-contact-card{background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:4px;overflow:hidden;transition:border-color .2s ease,transform .2s ease;min-width:0}
.cx-gear-card:hover,.cx-skill-card:hover,.cx-trip-card:hover,.cx-list-card:hover,.cx-photo-card:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.cx-gear-card img,.cx-skill-card img,.cx-trip-card img,.cx-list-card img,.cx-photo-card img{width:100%;height:200px;object-fit:cover}
.cx-gear-body,.cx-skill-body,.cx-trip-body,.cx-list-body{padding:20px}
.cx-gear-body span,.cx-skill-body span,.cx-trip-body span,.cx-list-body span{display:block;font-size:11px;letter-spacing:.28em;color:var(--c-accent);margin-bottom:8px}
.cx-gear-body h3,.cx-skill-body h3,.cx-trip-body h3,.cx-list-body h3{font-size:22px;margin:0 0 8px}
.cx-gear-body p,.cx-skill-body p,.cx-trip-body p,.cx-list-body p{color:var(--c-text-dim);font-size:14px;margin:0 0 12px}
.cx-gear-body b,.cx-skill-body b,.cx-trip-body b,.cx-list-body b{display:block;font-family:var(--font-sans);font-size:12px;color:var(--c-primary);font-weight:500;letter-spacing:.04em}

/* Photo card */
.cx-photo-card{padding:14px}
.cx-photo-card img{height:220px;border-radius:2px}
.cx-photo-card span{display:block;font-size:11px;letter-spacing:.28em;color:var(--c-accent);margin:14px 0 6px}
.cx-photo-card h3{font-size:18px;margin:0 0 6px}
.cx-photo-card p{color:var(--c-text-dim);font-size:13px;margin:0}

/* Safety grid */
.cx-safety-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:992px){.cx-safety-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.cx-safety-grid{grid-template-columns:1fr}}
.cx-safety-card{padding:24px;background:var(--c-bg-2)}
.cx-safety-card span{display:block;font-size:11px;letter-spacing:.28em;color:var(--c-accent);margin-bottom:10px}
.cx-safety-card h3{font-size:22px;margin:0 0 10px}
.cx-safety-card p{color:var(--c-text-dim);font-size:14px;margin:0 0 12px}
.cx-safety-card b{display:block;font-family:var(--font-sans);font-size:13px;color:var(--c-primary);font-weight:500;margin-bottom:4px}

/* Intro grid */
.cx-intro-grid{grid-template-columns:repeat(3,1fr)}
.cx-intro-card{padding:32px 24px;background:var(--c-bg-2)}
.cx-intro-card span{display:block;font-family:var(--font-serif);font-size:42px;color:var(--c-accent);margin-bottom:10px}
.cx-intro-card h3{font-size:22px;margin:0 0 8px}
.cx-intro-card p{color:var(--c-text-dim);font-size:14px;margin:0 0 12px}
.cx-intro-card b{display:block;font-family:var(--font-sans);font-size:12px;color:var(--c-primary);font-weight:500;letter-spacing:.04em}

/* Article */
.cx-article{display:grid;grid-template-columns:1fr 280px;gap:48px;align-items:start}
@media(max-width:992px){.cx-article{grid-template-columns:1fr}}
.cx-article-body{background:var(--c-bg-2);border:1px solid var(--c-bg-3);border-radius:8px;padding:40px;min-width:0}.article-head h1{font-size:28px;font-weight:700;color:var(--c-text);margin-bottom:12px}.article-meta{display:flex;gap:14px;font-size:13px;color:var(--c-text-mute);margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--c-bg-3)}.article-meta a{color:var(--c-primary)}.cx-article-body h2{font-size:24px;font-weight:700;margin-top:40px;margin-bottom:14px;color:var(--c-primary);border-left:4px solid var(--c-primary);padding:6px 0 6px 16px}.cx-article-body h2:first-of-type{margin-top:0}.cx-article-body h3{font-size:18px;font-weight:700;margin-top:28px;margin-bottom:10px;color:var(--c-text);padding-bottom:8px;border-bottom:1px dashed var(--c-bg-3)}.cx-article-body p{color:var(--c-text-dim);line-height:1.9;margin-bottom:16px}.cx-article-body ul{padding-left:20px;color:var(--c-text-dim);line-height:1.9}.article-cover-img{margin:-40px -40px 30px;overflow:hidden}.article-cover-img img{width:100%;max-height:400px;object-fit:cover;display:block}.cx-article-body figure img{margin:24px 0;border-radius:4px;max-width:100%}.article-nav{display:flex;gap:14px;margin-top:30px;padding-top:20px;border-top:1px solid var(--c-bg-3)}.article-nav a{flex:1;min-width:0;padding:14px 18px;background:var(--c-bg-3);color:var(--c-text-dim);border-radius:6px;text-decoration:none;font-size:14px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.article-nav a:hover{background:var(--c-bg-2);color:var(--c-primary)}
.article-summary{display:block;background:var(--c-bg-3);border-left:3px solid var(--c-accent);padding:18px 22px;margin-bottom:32px;color:var(--c-text);font-size:15px;border-radius:0 3px 3px 0}
.cx-quote{margin:32px 0;padding:20px 24px;background:var(--c-bg-3);border-left:3px solid var(--c-primary);color:var(--c-text);font-family:var(--font-serif);font-size:18px;font-style:italic;border-radius:0 3px 3px 0}

/* Aside */
.cx-aside-box{background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:4px;padding:24px;margin-bottom:20px}
.cx-aside-box h3{font-size:18px;margin:0 0 14px;color:var(--c-accent)}
.cx-aside-box ul{list-style:none;padding:0;margin:0}
.cx-aside-box li{margin-bottom:8px}
.cx-aside-box a{color:var(--c-text-dim);font-size:14px}
.cx-aside-box a:hover{color:var(--c-accent)}

/* Contact */
.cx-contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:40px}
@media(max-width:768px){.cx-contact-grid{grid-template-columns:1fr}}
.cx-contact-card{padding:28px;background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:4px}
.cx-contact-card h3{font-size:20px;margin:0 0 10px;color:var(--c-accent)}
.cx-contact-card p{color:var(--c-text-dim);font-size:14px;margin:0}
.cx-form{background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:4px;padding:32px}
.cx-form h3{font-size:22px;margin:0 0 8px;color:var(--c-text)}
.cx-form > p{color:var(--c-text-dim);font-size:14px;margin-bottom:20px}
.cx-form-row{margin-bottom:16px}
.cx-form-row label{display:block;font-size:13px;color:var(--c-text-dim);margin-bottom:6px}
.cx-form-row input,.cx-form-row textarea{width:100%;background:var(--c-bg-3);border:1px solid var(--c-border);color:var(--c-text);padding:10px 14px;border-radius:3px;font-family:inherit;font-size:14px}
.cx-form-row input:focus,.cx-form-row textarea:focus{outline:none;border-color:var(--c-primary)}

/* Search */
.cx-search-box{display:flex;gap:12px;max-width:640px;margin-bottom:24px;flex-wrap:wrap}
.cx-search-box input{flex:1;min-width:0;background:var(--c-bg-2);border:1px solid var(--c-border);color:var(--c-text);padding:12px 16px;border-radius:3px;font-family:inherit;font-size:15px}
.cx-search-box input:focus{outline:none;border-color:var(--c-primary)}
.cx-search-tags{margin-bottom:32px;color:var(--c-text-dim);font-size:14px}
.cx-search-tags a{display:inline-block;margin:4px 6px 4px 0;padding:4px 10px;background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:2px;font-size:13px;color:var(--c-text-dim)}
.cx-search-tags a:hover{border-color:var(--c-primary);color:var(--c-accent)}
.cx-search-result{background:var(--c-bg-2);border:1px solid var(--c-border);border-radius:4px;padding:24px}
.cx-search-result h3{font-size:20px;margin:0 0 14px;color:var(--c-accent)}
.cx-search-result ul{padding-left:20px;color:var(--c-text-dim);line-height:1.9}

/* Closing */
.cx-closing{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:80px 32px;max-width:1180px;margin:0 auto;border-top:1px solid var(--c-border)}
@media(max-width:768px){.cx-closing{grid-template-columns:1fr;padding:48px 24px}}
.cx-closing span{display:block;font-size:12px;letter-spacing:.32em;color:var(--c-accent);margin-bottom:12px}
.cx-closing h2{font-size:32px;color:var(--c-text)}
.cx-closing p{color:var(--c-text-dim);margin-bottom:24px}
.cx-closing img{border-radius:4px;max-height:380px;width:100%;object-fit:cover}

/* Footer */
.cx-footer{background:var(--c-bg-2);padding:56px 24px 28px;margin-top:60px}.cx-footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:32px;border-bottom:1px solid var(--c-bg-3)}.cx-footer-brand .cx-footer-logo{display:inline-block;font-size:20px;font-weight:700;color:var(--c-primary);margin-bottom:10px}.cx-footer p{color:var(--c-text-mute);font-size:14px;line-height:1.7;margin:0;max-width:320px}.cx-footer b{display:block;font-size:12px;letter-spacing:.1em;color:var(--c-primary);text-transform:uppercase;margin-bottom:14px}.cx-footer a{display:block;color:var(--c-text-mute);font-size:13px;padding:4px 0;text-decoration:none;transition:all .2s}.cx-footer a:hover{color:var(--c-text);padding-left:4px}.cx-footer small{display:block;max-width:1200px;margin:24px auto 0;padding-top:18px;color:var(--c-text-mute);font-size:12px;text-align:center}@media(max-width:767px){.cx-footer-grid{grid-template-columns:1fr 1fr;gap:24px}}

/* Back to top */
#back-to-top{position:fixed;right:24px;bottom:24px;width:42px;height:42px;border-radius:50%;background:var(--c-primary);color:#fff;border:none;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:all .25s ease;z-index:80}
#back-to-top.show{opacity:1;visibility:visible}
#back-to-top:hover{background:var(--c-primary-d)}
.nav-drop{position:relative;display:inline-flex}.nav-drop>a{white-space:nowrap}.nav-sub{display:none;position:absolute;top:100%;left:0;z-index:999;background:var(--c-bg-2);min-width:170px;max-height:300px;overflow-y:auto;border:1px solid var(--c-bg-3);border-radius:6px;padding:6px 0;box-shadow:0 8px 30px rgba(0,0,0,.4)}.nav-drop:hover>.nav-sub{display:block}.nav-sub a{display:block!important;padding:10px 20px!important;color:var(--c-text-dim)!important;font-size:13px!important;border:none!important}.nav-sub a:hover{background:rgba(107,154,61,.1);color:var(--c-primary)!important}
.widget{background:var(--c-bg-2);border:1px solid var(--c-bg-3);border-radius:8px;padding:20px;margin-bottom:18px}.widget-head{margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--c-bg-3)}.widget-title{font-size:14px;font-weight:700;color:var(--c-primary);text-transform:uppercase;letter-spacing:.08em;margin:0}.rank-list{list-style:none;padding:0;margin:0}.rank-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.04)}.rank-item:last-child{border-bottom:none}.rank-num{flex-shrink:0;width:24px;height:24px;line-height:24px;text-align:center;font-size:11px;font-weight:700;border-radius:4px;background:var(--c-bg-3);color:var(--c-text-mute)}.rank-top{background:var(--c-primary);color:#fff}.rank-content{flex:1;min-width:0;overflow:hidden}.rank-title{font-size:13px;color:var(--c-text-dim);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;display:block}.rank-title:hover{color:var(--c-primary)}.nav-list{list-style:none;padding:0;margin:0}.nav-list li{padding:7px 0;border-bottom:1px solid rgba(255,255,255,.04)}.nav-list li:last-child{border-bottom:none}.nav-list a{display:block;font-size:13px;color:var(--c-text-dim);text-decoration:none;padding:4px 0}.nav-list a:hover{color:var(--c-primary)}
@media(max-width:991px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:767px){.card-grid{grid-template-columns:1fr}.cx-hero{padding:60px 20px 50px}}
.main-section{padding:50px 0}.block{margin-bottom:40px}.block-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--c-bg-3)}.block-head h3{font-size:20px;font-weight:700;color:var(--c-text);margin:0}.more{font-size:13px;color:var(--c-text-dim)}.more:hover{color:var(--c-primary)}
.cx-hero{padding:100px 24px 80px;text-align:center;background:linear-gradient(180deg,rgba(13,17,23,.88),rgba(13,17,23,.6),rgba(13,17,23,.95))}.cx-hero-inner{max-width:800px;margin:0 auto}.cx-hero-tag{font-size:12px;letter-spacing:.2em;color:var(--c-primary);margin-bottom:20px}.cx-hero h1{font-size:clamp(32px,5vw,54px);font-weight:700;color:#fff;margin-bottom:16px}.cx-hero p{font-size:17px;color:var(--c-text-dim);max-width:600px;margin:0 auto 32px}.cx-hero-btns{display:flex;gap:14px;justify-content:center}.cx-btn-primary{display:inline-flex;padding:14px 32px;background:var(--c-primary);color:#fff;font-weight:700;font-size:14px;text-decoration:none;border-radius:6px;transition:all .25s}.cx-btn-primary:hover{background:var(--c-primary-d);color:#fff}.cx-btn-ghost{display:inline-flex;padding:14px 32px;background:transparent;color:var(--c-text);border:1.5px solid var(--c-bg-3);font-weight:700;font-size:14px;text-decoration:none;border-radius:6px;transition:all .25s}.cx-btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{display:flex;flex-direction:column;background:var(--c-bg-2);border:1px solid var(--c-bg-3);border-radius:8px;overflow:hidden;transition:all .25s;text-decoration:none;color:inherit}.card:hover{transform:translateY(-3px);border-color:var(--c-primary)}.card-cover{position:relative;height:180px;overflow:hidden;background:var(--c-bg-3)}.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s}.card:hover .card-cover img{transform:scale(1.05)}.no-img{display:flex;align-items:center;justify-content:center;width:100%;height:100%;font-size:48px;color:var(--c-text-mute)}.card-body{padding:16px;flex:1;display:flex;flex-direction:column}.card-body h3{font-size:15px;font-weight:700;color:var(--c-text);margin-bottom:6px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.card-body p{font-size:13px;color:var(--c-text-dim);margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}.card-body span{font-size:12px;color:var(--c-text-mute)}.widget{background:var(--c-bg-2);border:1px solid var(--c-bg-3);border-radius:8px;padding:20px;margin-bottom:18px}.widget-head{margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--c-bg-3)}.widget-title{font-size:14px;font-weight:700;color:var(--c-primary);text-transform:uppercase;letter-spacing:.08em;margin:0}.rank-list{list-style:none;padding:0;margin:0}.rank-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.04)}.rank-item:last-child{border-bottom:none}.rank-num{flex-shrink:0;width:24px;height:24px;line-height:24px;text-align:center;font-size:11px;font-weight:700;border-radius:4px;background:var(--c-bg-3);color:var(--c-text-mute)}.rank-top{background:var(--c-primary);color:#fff}.rank-content{flex:1;min-width:0;overflow:hidden}.rank-title{font-size:13px;color:var(--c-text-dim);overflow:hidden;white-space:nowrap;text-overflow:ellipsis;display:block}.rank-title:hover{color:var(--c-primary)}.nav-list{list-style:none;padding:0;margin:0}.nav-list li{padding:7px 0;border-bottom:1px solid rgba(255,255,255,.04)}.nav-list li:last-child{border-bottom:none}.nav-list a{display:block;font-size:13px;color:var(--c-text-dim);text-decoration:none;padding:4px 0}.nav-list a:hover{color:var(--c-primary)}
@media(max-width:991px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:767px){.card-grid{grid-template-columns:1fr}.cx-hero{padding:60px 20px 50px}}