/* roulang page: index */
:root {
  --bg-main:#17120E; --bg-deep:#120E0A; --bg-surface:#211A14; --bg-card:#2A211A; --bg-glass:rgba(23,18,14,.72);
  --primary:#E2A45F; --primary-bright:#F0BC7A; --secondary:#C86E3A; --gradient:linear-gradient(135deg,#E2A45F,#C86E3A);
  --accent-brown:#8A5A35; --accent-green:#71805A; --text-main:#F3EAD9; --text-secondary:#BBAA96; --text-muted:#857563;
  --border-warm:rgba(226,164,95,.18); --border-strong:rgba(226,164,95,.35);
  --radius-lg:20px; --radius-md:12px; --radius-full:999px;
  --shadow-regular:0 12px 30px rgba(0,0,0,.45); --shadow-hover:0 18px 40px rgba(0,0,0,.55),0 0 0 1px rgba(226,164,95,.25);
  --container-max:1200px; --spacing-section:96px; --spacing-section-mobile:56px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;background:var(--bg-main);color:var(--text-main);line-height:1.75;font-size:16px;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .25s ease}
a:hover{color:var(--primary-bright)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:var(--container-max);margin:0 auto;padding:0 20px}
section{position:relative}
::selection{background:rgba(226,164,95,.3);color:var(--text-main)}

/* ===== NAV ===== */
.site-header{position:fixed;top:24px;left:0;right:0;z-index:1000;display:flex;justify-content:center;padding:0 4vw;pointer-events:none}
.dock{pointer-events:auto;width:min(920px,92vw);display:flex;align-items:center;justify-content:space-between;background:var(--bg-glass);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid var(--border-warm);border-radius:60px;padding:10px 18px;box-shadow:0 8px 30px rgba(0,0,0,.4);transition:transform .3s ease,box-shadow .3s ease}
.dock:hover{box-shadow:0 12px 36px rgba(0,0,0,.5)}
.dock-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.05rem;color:var(--text-main);letter-spacing:.5px;white-space:nowrap}
.dock-logo .logo-mark{width:34px;height:34px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:15px;color:#fff;flex-shrink:0;box-shadow:0 0 18px rgba(226,164,95,.4)}
.dock-logo span:last-child{font-size:.92rem}
.dock-nav{display:flex;align-items:center;gap:2px}
.dock-nav a{padding:8px 14px;border-radius:30px;font-size:.88rem;color:var(--text-secondary);font-weight:500;transition:all .25s ease;position:relative}
.dock-nav a:hover{color:var(--text-main);background:rgba(226,164,95,.1)}
.dock-nav a.active{background:var(--gradient);color:#fff;box-shadow:0 4px 14px rgba(200,110,58,.35)}
.dock-nav a.active:hover{color:#fff}
.dock-actions{display:flex;align-items:center;gap:8px}
.dock-search{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-warm);color:var(--text-secondary);transition:all .25s ease;font-size:14px}
.dock-search:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-2px)}
.dock-cta{padding:9px 20px;background:var(--gradient);color:#fff;border-radius:40px;font-size:.88rem;font-weight:600;transition:all .25s ease;box-shadow:0 4px 16px rgba(200,110,58,.3);white-space:nowrap}
.dock-cta:hover{filter:brightness(1.08);transform:translateY(-2px);color:#fff;box-shadow:0 6px 22px rgba(200,110,58,.45)}
.dock-cta:active{transform:translateY(0)}
.dock-burger{display:none;width:36px;height:36px;border-radius:50%;border:1px solid var(--border-warm);color:var(--text-main);font-size:16px;justify-content:center;align-items:center}
.dock-burger:hover{border-color:var(--primary)}
.mobile-menu{position:fixed;inset:0;background:rgba(18,14,10,.97);backdrop-filter:blur(24px);z-index:999;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;opacity:0;visibility:hidden;transition:all .35s ease}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-menu a{font-size:1.3rem;color:var(--text-main);padding:14px 20px;font-weight:600;text-align:center;width:100%;max-width:280px;border-radius:16px;transition:background .3s ease}
.mobile-menu a:hover{background:rgba(226,164,95,.1)}
.mobile-menu .btn-mobile-cta{margin-top:20px;background:var(--gradient);color:#fff;padding:16px 40px;border-radius:40px;font-weight:700;box-shadow:0 8px 30px rgba(200,110,58,.35);width:auto;min-width:200px}
.mobile-menu-close{position:absolute;top:30px;right:30px;width:44px;height:44px;border-radius:50%;border:1px solid var(--border-warm);color:var(--text-main);font-size:18px;display:flex;align-items:center;justify-content:center}
.mobile-menu-close:hover{border-color:var(--primary);color:var(--primary)}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:var(--radius-full);font-size:.95rem;font-weight:600;transition:all .28s ease;line-height:1.4;border:1px solid transparent}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 6px 20px rgba(200,110,58,.35)}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);color:#fff;box-shadow:0 10px 30px rgba(200,110,58,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(200,110,58,.35)}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary)}
.btn-outline:hover{background:rgba(226,164,95,.1);color:var(--primary-bright);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

/* ===== HERO ===== */
.hero{min-height:90vh;display:flex;align-items:center;background-size:cover;background-position:center;position:relative;padding:140px 0 90px}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(100deg,rgba(18,14,10,.94) 0%,rgba(18,14,10,.76) 45%,rgba(18,14,10,.35) 75%,rgba(18,14,10,.55) 100%);z-index:1}
.hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;background:rgba(42,33,26,.72);border:1px solid var(--border-strong);border-radius:var(--radius-full);font-size:.8rem;color:var(--primary-bright);font-weight:500;margin-bottom:24px;backdrop-filter:blur(8px)}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent-green);box-shadow:0 0 8px var(--accent-green)}
.hero h1{font-size:clamp(2.1rem,4vw,3.4rem);font-weight:800;line-height:1.25;color:var(--text-main);margin-bottom:20px;letter-spacing:-0.5px}
.hero h1 .em{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:clamp(1rem,1.4vw,1.2rem);color:var(--text-secondary);max-width:560px;line-height:1.85;margin-bottom:36px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:48px}
.hero-actions .btn{min-width:150px}
.hero-stats{display:flex;gap:20px;flex-wrap:wrap;margin-bottom:30px}
.stat-badge{display:flex;flex-direction:column;gap:2px;padding:14px 22px;background:rgba(42,33,26,.72);border:1px solid var(--primary);border-radius:var(--radius-lg);min-width:130px;backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(0,0,0,.3);transition:transform .3s ease,box-shadow .3s ease}
.stat-badge:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.stat-badge strong{font-size:2rem;font-weight:800;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-badge strong small{font-size:.9rem;font-weight:600}
.stat-badge span{font-size:.8rem;color:var(--text-secondary)}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap}
.hero-tags span{padding:5px 16px;border:1px solid var(--border-warm);border-radius:30px;font-size:.78rem;color:var(--text-muted);letter-spacing:1px}

/* ===== SECTION HEADER ===== */
.section-header{text-align:center;max-width:720px;margin:0 auto 56px}
.section-header .section-kicker{display:inline-block;font-size:.78rem;font-weight:600;color:var(--primary);letter-spacing:2px;text-transform:uppercase;margin-bottom:12px;padding:4px 16px;border:1px solid var(--border-warm);border-radius:30px;background:rgba(42,33,26,.5)}
.section-header h2{font-size:clamp(1.6rem,2.5vw,2rem);font-weight:700;margin-bottom:14px;line-height:1.35}
.section-header p{color:var(--text-secondary);font-size:1rem;line-height:1.8}

/* ===== NEWS ===== */
.news-section{padding:var(--spacing-section) 0;background:var(--bg-deep)}
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-warm);transition:all .3s ease;position:relative}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.news-card:hover .news-title{color:var(--primary)}
.news-cover{height:150px;background-size:cover;background-position:center;position:relative}
.news-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(18,14,10,.5),transparent 60%)}
.news-cat{position:absolute;top:12px;left:12px;z-index:2;padding:4px 12px;background:rgba(18,14,10,.8);border:1px solid var(--border-strong);border-radius:30px;font-size:.72rem;color:var(--primary);font-weight:600;backdrop-filter:blur(6px)}
.news-body{padding:16px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:1.02rem;font-weight:600;line-height:1.5;color:var(--text-main);overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0}
.news-excerpt{font-size:.85rem;color:var(--text-secondary);line-height:1.65;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;flex:1}
.news-meta{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--text-muted);border-top:1px solid rgba(226,164,95,.1);padding-top:10px;margin-top:auto}
.news-meta .news-time{display:flex;align-items:center;gap:5px}
.news-more{color:var(--primary);font-weight:600;font-size:.8rem}
.news-more:hover{color:var(--primary-bright)}
.news-empty{grid-column:1/-1;text-align:center;padding:60px 20px;background:var(--bg-surface);border:1px dashed var(--border-strong);border-radius:var(--radius-lg);color:var(--text-secondary);font-size:1rem}
.news-empty .empty-icon{font-size:2rem;margin-bottom:10px;display:block}

/* ===== PAIN ===== */
.pain-section{padding:var(--spacing-section) 0;background:var(--bg-main)}
.pain-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;position:relative}
.pain-card{background:var(--bg-surface);border:1px solid var(--border-warm);border-radius:var(--radius-lg);padding:40px 32px;transition:all .3s ease;position:relative;overflow:hidden}
.pain-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient);transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
.pain-card:hover{border-color:var(--primary);box-shadow:var(--shadow-hover);transform:translateY(-5px)}
.pain-card:hover::before{transform:scaleX(1)}
.pain-card:nth-child(1){margin-top:0}
.pain-card:nth-child(2){margin-top:28px}
.pain-card:nth-child(3){margin-top:56px}
.pain-icon{width:56px;height:56px;border-radius:16px;background:rgba(226,164,95,.12);display:flex;align-items:center;justify-content:center;font-size:1.5rem;margin-bottom:20px;border:1px solid var(--border-warm)}
.pain-card h3{font-size:1.15rem;font-weight:700;margin-bottom:12px;color:var(--text-main)}
.pain-card p{color:var(--text-secondary);font-size:.92rem;line-height:1.75}

/* ===== SOLUTION ===== */
.solution-section{padding:var(--spacing-section) 0;background:var(--bg-deep)}
.filter-bar{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:44px}
.filter-tag{padding:8px 22px;border:1px solid var(--border-warm);border-radius:30px;font-size:.85rem;color:var(--text-secondary);transition:all .25s ease;background:transparent;font-weight:500}
.filter-tag:hover{color:var(--primary);border-color:var(--primary);background:rgba(226,164,95,.06)}
.filter-tag.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 4px 16px rgba(200,110,58,.35)}
.tea-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.tea-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-warm);transition:all .3s ease;display:flex;flex-direction:column;position:relative}
.tea-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.tea-card .tea-cover{height:220px;background-size:cover;background-position:center;position:relative}
.tea-card .tea-cover::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(18,14,10,.7),transparent 50%)}
.tea-card .tea-tag{position:absolute;top:14px;left:14px;z-index:2;padding:5px 14px;background:rgba(18,14,10,.8);border:1px solid var(--border-strong);border-radius:30px;font-size:.72rem;color:var(--primary);backdrop-filter:blur(6px);font-weight:600}
.tea-card .tea-subtag{position:absolute;top:14px;right:14px;z-index:2;padding:5px 12px;background:rgba(113,128,90,.25);border:1px solid rgba(113,128,90,.4);border-radius:30px;font-size:.68rem;color:#A8B88A;backdrop-filter:blur(6px)}
.tea-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.tea-body h3{font-size:1.1rem;font-weight:600;line-height:1.4;color:var(--text-main);margin:0}
.tea-body .tea-desc{font-size:.82rem;color:var(--text-secondary);line-height:1.6}
.tea-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tea-chip{font-size:.74rem;padding:3px 10px;background:rgba(42,33,26,.7);border:1px solid var(--border-warm);border-radius:20px;color:var(--text-muted);display:flex;align-items:center;gap:4px}
.tea-chip strong{color:var(--primary)}
.tea-book{position:absolute;bottom:16px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;transition:all .3s ease;background:var(--gradient);color:#fff;padding:9px 24px;border-radius:30px;font-size:.82rem;font-weight:600;white-space:nowrap;box-shadow:0 6px 20px rgba(200,110,58,.4)}
.tea-card:hover .tea-book{opacity:1;transform:translateX(-50%) translateY(0)}
.tea-book:hover{filter:brightness(1.1);color:#fff}
.tea-card.locked .tea-meta .tea-chip strong{color:var(--text-muted)}

/* ===== ACHIEVEMENT ===== */
.achievement-section{padding:var(--spacing-section) 0;background:var(--bg-main);position:relative}
.achievement-section::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.jpg') center/cover fixed;opacity:.06}
.achievement-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;position:relative;z-index:2}
.achievement-item{text-align:center;padding:36px 16px;background:rgba(42,33,26,.72);border:1px solid var(--primary);border-radius:var(--radius-lg);backdrop-filter:blur(10px);transition:transform .3s ease,box-shadow .3s ease}
.achievement-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.achievement-item .num{font-size:clamp(2.3rem,3vw,3rem);font-weight:800;color:var(--primary);line-height:1.1;font-variant-numeric:tabular-nums}
.achievement-item .num small{font-size:1.5rem;color:var(--primary-bright);margin-left:2px}
.achievement-item .label{font-size:.88rem;color:var(--text-secondary);margin-top:10px;font-weight:500}
.achievement-heading{text-align:center;margin-bottom:60px;position:relative;z-index:2}
.achievement-heading h2{font-size:clamp(1.8rem,3vw,2.4rem);font-weight:800;margin-bottom:16px}
.achievement-heading .gradient-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.achievement-heading p{color:var(--text-secondary);max-width:620px;margin:0 auto;font-size:1rem}

/* ===== TESTIMONIALS ===== */
.testimonials-section{padding:var(--spacing-section) 0;background:var(--bg-deep)}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.testimonial-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:32px;border:1px solid var(--border-warm);position:relative;transition:all .3s ease}
.testimonial-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--border-strong)}
.testimonial-card::before{content:'“';font-size:4rem;font-family:Georgia,serif;color:var(--primary);position:absolute;top:14px;left:20px;opacity:.25;line-height:1}
.testimonial-stars{display:flex;gap:4px;color:var(--primary);font-size:.9rem;margin-bottom:16px}
.testimonial-text{font-style:normal;color:var(--text-main);font-size:.95rem;line-height:1.8;position:relative;z-index:2;margin-bottom:20px}
.testimonial-author{display:flex;align-items:center;gap:12px;border-top:1px solid rgba(226,164,95,.12);padding-top:16px}
.testimonial-avatar{width:44px;height:44px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff;flex-shrink:0}
.testimonial-avatar.alt{background:var(--accent-brown)}
.testimonial-author .name{font-size:.9rem;font-weight:600;color:var(--text-main)}
.testimonial-author .role{font-size:.78rem;color:var(--text-muted)}

/* ===== FAQ ===== */
.faq-section{padding:var(--spacing-section) 0;background:var(--bg-main)}
.faq-wrap{max-width:800px;margin:0 auto}
.faq-item{background:var(--bg-surface);border:1px solid var(--border-warm);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:border-color .3s ease,box-shadow .3s ease}
.faq-item.open{border-color:var(--border-strong);box-shadow:0 8px 30px rgba(0,0,0,.3)}
.faq-q{width:100%;padding:20px 24px;display:flex;align-items:center;gap:16px;text-align:left;font-size:1rem;font-weight:600;color:var(--text-main);transition:background .3s ease}
.faq-q:hover{background:rgba(226,164,95,.04)}
.faq-q .faq-icon{width:28px;height:28px;border-radius:50%;border:1px solid var(--border-strong);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--primary);transition:transform .3s ease;flex-shrink:0;margin-left:auto}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--gradient);color:#fff;border-color:transparent}
.faq-a{max-height:0;padding:0 24px;overflow:hidden;transition:max-height .4s ease,padding .3s ease;color:var(--text-secondary);font-size:.92rem;line-height:1.85}
.faq-a p{padding-bottom:22px}

/* ===== CTA ===== */
.cta-section{padding:var(--spacing-section) 0;position:relative;background:url('/assets/images/backpic/back-3.jpg') center/cover no-repeat}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(18,14,10,.92),rgba(33,26,20,.78))}
.cta-box{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;padding:60px 30px;background:rgba(42,33,26,.55);border:1px solid var(--border-strong);border-radius:28px;backdrop-filter:blur(16px);box-shadow:0 20px 50px rgba(0,0,0,.5)}
.cta-box h2{font-size:clamp(1.7rem,3vw,2.3rem);font-weight:800;margin-bottom:18px}
.cta-box h2 .cta-gradient{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.cta-box p{color:var(--text-secondary);font-size:1rem;margin-bottom:36px;line-height:1.8}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===== FOOTER ===== */
.site-footer{background:var(--bg-deep);padding:70px 0 30px;border-top:1px solid var(--border-warm)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:50px;margin-bottom:40px}
.footer-brand .footer-logo{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:800;color:var(--text-main);margin-bottom:16px}
.footer-brand .footer-logo .logo-mark{width:30px;height:30px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:13px;color:#fff}
.footer-brand p{color:var(--text-muted);font-size:.88rem;line-height:1.75;max-width:340px}
.footer-links h4{font-size:.95rem;font-weight:700;color:var(--text-main);margin-bottom:18px}
.footer-links ul li{margin-bottom:10px}
.footer-links ul li a{color:var(--text-secondary);font-size:.88rem;transition:color .25s ease}
.footer-links ul li a:hover{color:var(--primary)}
.footer-contact h4{font-size:.95rem;font-weight:700;color:var(--text-main);margin-bottom:18px}
.footer-contact ul li{color:var(--text-secondary);font-size:.88rem;margin-bottom:10px;display:flex;align-items:flex-start;gap:8px}
.footer-contact ul li span{flex-shrink:0}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(226,164,95,.1);font-size:.82rem;color:var(--text-muted)}
.footer-bottom a{color:var(--text-muted)}
.footer-bottom a:hover{color:var(--primary)}

/* ===== BACK TO TOP ===== */
.back-to-top{position:fixed;bottom:30px;right:30px;width:48px;height:48px;border-radius:50%;background:rgba(23,18,14,.85);border:1px solid var(--border-strong);color:var(--primary);font-size:18px;display:flex;align-items:center;justify-content:center;z-index:998;opacity:0;visibility:hidden;transition:all .3s ease;backdrop-filter:blur(8px);box-shadow:0 6px 20px rgba(0,0,0,.4)}
.back-to-top.show{opacity:1;visibility:visible}
.back-to-top:hover{background:var(--gradient);color:#fff;transform:translateY(-4px)}
.back-to-top:active{transform:translateY(0)}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .tea-grid{grid-template-columns:repeat(2,1fr)}
  .testimonial-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .achievement-grid{grid-template-columns:repeat(2,1fr)}
  .pain-cards{grid-template-columns:1fr;max-width:580px;margin:0 auto}
  .pain-card:nth-child(2),.pain-card:nth-child(3){margin-top:0}
  .site-header{top:16px}
}
@media (max-width:768px){
  .dock-nav,.dock-actions .dock-search{display:none}
  .dock-burger{display:flex}
  .dock-logo span:last-child{font-size:.82rem}
  .dock{padding:8px 12px;border-radius:50px;width:94vw}
  .site-header{top:12px}
  .spacing,section{padding-top:var(--spacing-section-mobile);padding-bottom:var(--spacing-section-mobile)}
  .hero{padding-top:120px;padding-bottom:60px;min-height:auto}
  .hero-actions .btn{width:100%;justify-content:center}
  .hero-stats{flex-direction:column;gap:12px}
  .stat-badge{flex-direction:row;align-items:center;gap:10px;min-width:auto;padding:12px 20px}
  .stat-badge strong{font-size:1.5rem}
  .stat-badge span{font-size:.82rem}
  .section-header{margin-bottom:36px}
  .footer-grid{grid-template-columns:1fr;gap:36px;text-align:center}
  .footer-brand p{margin:0 auto}
  .footer-links ul,.footer-contact ul{text-align:center}
  .footer-links ul li,.footer-contact ul li{justify-content:center}
  .footer-bottom{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  .news-grid,.tea-grid{grid-template-columns:1fr}
  .achievement-grid{grid-template-columns:1fr 1fr;gap:14px}
  .achievement-item .num{font-size:1.8rem}
  .cta-box{padding:36px 20px;border-radius:20px}
  .cta-actions .btn{width:100%;justify-content:center}
  .filter-bar{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;padding-bottom:8px;-webkit-overflow-scrolling:touch}
  .filter-tag{flex-shrink:0}
  .dock-cta{display:none}
}

/* roulang page: article */
:root {
    --bg-main: #17120E;
    --bg-deep: #120E0A;
    --bg-card: #211A14;
    --bg-soft: #2A211A;
    --bg-glass: rgba(23, 18, 14, 0.72);
    --bg-glass-light: rgba(42, 33, 26, 0.72);
    --primary: #E2A45F;
    --primary-light: #F0BC7A;
    --accent: #C86E3A;
    --gradient: linear-gradient(135deg, #E2A45F 0%, #C86E3A 100%);
    --brown: #8A5A35;
    --tea-green: #71805A;
    --text-main: #F3EAD9;
    --text-sub: #BBAA96;
    --text-weak: #857563;
    --border-main: rgba(226, 164, 95, 0.18);
    --border-strong: rgba(226, 164, 95, 0.38);
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-pill: 999px;
    --shadow-regular: 0 12px 30px rgba(0, 0, 0, 0.45);
    --shadow-hover: 0 18px 40px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(226, 164, 95, 0.25);
    --font-main: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition);
}

a:hover {
    color: var(--primary-light);
}

img {
    max-width: 100%;
    display: block;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
    border-radius: 6px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-header {
    position: fixed;
    top: 24px;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 0 20px;
    pointer-events: none;
}

.dock {
    width: min(920px, 100%);
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 14px 10px 18px;
    background: var(--bg-glass);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-pill);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    pointer-events: auto;
}

.dock-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    font-weight: 700;
    font-size: 1.05rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.dock-logo:hover {
    color: var(--primary-light);
}

.logo-mark {
    font-size: 1.25rem;
}

.dock-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin: 0 auto;
}

.dock-nav a {
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    color: var(--text-sub);
    font-size: 0.9rem;
    transition: all var(--transition);
    position: relative;
}

.dock-nav a:hover {
    color: var(--text-main);
    background: rgba(226, 164, 95, 0.08);
}

.dock-nav a.active {
    color: var(--text-main);
    background: var(--gradient);
    box-shadow: 0 4px 16px rgba(200, 110, 58, 0.3);
}

.dock-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.dock-search {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid transparent;
    color: var(--text-sub);
    font-size: 0.95rem;
    transition: all var(--transition);
}

.dock-search:hover {
    background: rgba(226, 164, 95, 0.12);
    color: var(--primary-light);
    border-color: var(--border-main);
}

.dock-cta {
    padding: 9px 20px;
    border-radius: var(--radius-pill);
    background: var(--gradient);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 14px rgba(200, 110, 58, 0.28);
    transition: all var(--transition);
    white-space: nowrap;
}

.dock-cta:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(200, 110, 58, 0.4);
    color: #fff;
}

.dock-cta:active {
    transform: translateY(0);
}

.dock-burger {
    display: none;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border-main);
    color: var(--text-main);
    font-size: 1rem;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}

.dock-burger:hover {
    background: rgba(226, 164, 95, 0.1);
    border-color: var(--primary);
}

.dock-nav-cta {
    display: none;
}

.article-main {
    padding: 148px 0 96px;
    min-height: 70vh;
    background:
        linear-gradient(to bottom, rgba(23, 18, 14, 0.94), rgba(18, 14, 10, 0.97)),
        url('/assets/images/backpic/back-1.jpg') center/cover no-repeat fixed;
}

.article-container {
    max-width: 920px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-weak);
    margin-bottom: 28px;
    padding: 0 6px;
}

.breadcrumb a {
    color: var(--text-sub);
    transition: color var(--transition);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.crumb-sep {
    color: var(--text-weak);
    opacity: 0.5;
    font-style: normal;
}

.crumb-current {
    color: var(--primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 280px;
}

.article-card {
    max-width: 860px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 42px;
    box-shadow: var(--shadow-regular);
}

.article-head {
    text-align: center;
    margin-bottom: 34px;
}

.article-cats {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.tag {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: var(--radius-pill);
    background: rgba(226, 164, 95, 0.08);
    border: 1px solid var(--border-main);
    color: var(--primary-light);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.03em;
}

.article-head h1 {
    font-size: clamp(1.75rem, 3.4vw, 2.6rem);
    font-weight: 800;
    line-height: 1.35;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin-bottom: 20px;
    word-break: break-word;
}

.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-weak);
    font-size: 0.85rem;
}

.meta-dot {
    opacity: 0.4;
}

.article-cover {
    margin-bottom: 34px;
    border-radius: var(--radius-md);
    overflow: hidden;
    position: relative;
    aspect-ratio: 16 / 9;
    background: var(--bg-deep);
    box-shadow: var(--shadow-regular);
}

.article-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.article-content {
    color: var(--text-main);
    font-size: 1rem;
    line-height: 1.9;
    word-break: break-word;
}

.article-content > * + * {
    margin-top: 1.4em;
}

.article-content p {
    color: #E8DCC7;
    margin-bottom: 0.9em;
}

.article-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-top: 2em;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-main);
    line-height: 1.4;
}

.article-content h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-top: 1.8em;
    color: var(--primary);
    line-height: 1.5;
}

.article-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-top: 1.6em;
    color: var(--primary-light);
}

.article-content ul,
.article-content ol {
    padding-left: 1.4em;
    margin: 1.2em 0;
}

.article-content ul li {
    list-style: disc;
    margin-bottom: 0.6em;
    padding-left: 0.2em;
}

.article-content ol li {
    list-style: decimal;
    margin-bottom: 0.6em;
    padding-left: 0.2em;
}

.article-content li::marker {
    color: var(--primary);
}

.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: rgba(226, 164, 95, 0.06);
    padding: 18px 24px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-sub);
    margin: 1.6em 0;
}

.article-content blockquote p {
    color: var(--text-sub);
    margin: 0;
}

.article-content a {
    color: var(--primary-light);
    text-decoration: underline;
    text-decoration-color: rgba(226, 164, 95, 0.35);
    text-underline-offset: 3px;
}

.article-content a:hover {
    color: var(--primary);
}

.article-content img {
    border-radius: var(--radius-md);
    margin: 1.5em 0;
    box-shadow: var(--shadow-regular);
}

.article-content figcaption {
    font-size: 0.82rem;
    color: var(--text-weak);
    text-align: center;
    margin-top: -1em;
    padding-bottom: 0.8em;
}

.article-content strong {
    font-weight: 700;
    color: var(--text-main);
}

.article-content em {
    color: var(--primary-light);
}

.article-content hr {
    border: none;
    border-top: 1px solid var(--border-main);
    margin: 2.5em 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5em 0;
    font-size: 0.92rem;
}

.article-content th,
.article-content td {
    border: 1px solid var(--border-main);
    padding: 10px 14px;
    text-align: left;
}

.article-content th {
    background: rgba(226, 164, 95, 0.06);
    color: var(--primary-light);
    font-weight: 600;
}

.article-bottom {
    margin-top: 48px;
    padding-top: 28px;
    border-top: 1px solid var(--border-main);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}

.article-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.related-tag {
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    background: rgba(42, 33, 26, 0.6);
    border: 1px solid var(--border-main);
    font-size: 0.78rem;
    color: var(--text-sub);
    transition: all var(--transition);
}

.related-tag:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.article-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-main);
    color: var(--text-sub);
    font-size: 0.88rem;
    transition: all var(--transition);
}

.btn-back:hover {
    border-color: var(--primary);
    color: var(--primary-light);
    background: rgba(226, 164, 95, 0.08);
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 26px;
    border-radius: var(--radius-pill);
    background: var(--gradient);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 16px rgba(200, 110, 58, 0.3);
    transition: all var(--transition);
}

.btn-primary:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow: 0 6px 22px rgba(200, 110, 58, 0.42);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(0);
}

.related-posts {
    max-width: 860px;
    margin: 52px auto 0;
}

.section-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-main);
}

.section-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-main);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-card {
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    display: block;
}

.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.related-cover {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--bg-deep);
}

.related-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.related-card:hover .related-cover img {
    transform: scale(1.05);
}

.related-body {
    padding: 18px 20px 20px;
}

.related-body .tag {
    margin-bottom: 10px;
}

.related-body h3 {
    font-size: 1.02rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--text-main);
    margin-top: 10px;
    transition: color var(--transition);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-card:hover .related-body h3 {
    color: var(--primary-light);
}

.related-time {
    margin-top: 14px;
    display: block;
    font-size: 0.8rem;
    color: var(--text-weak);
}

.article-empty {
    max-width: 860px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: var(--radius-lg);
    padding: 80px 24px;
    text-align: center;
    box-shadow: var(--shadow-regular);
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.article-empty h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.article-empty p {
    color: var(--text-sub);
    margin-bottom: 28px;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--border-main);
    padding: 64px 0 28px;
    margin-top: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-main);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-sub);
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 340px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1rem;
    color: var(--text-main);
    margin-bottom: 18px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-contact h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 28px;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
}

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-sub);
    font-size: 0.9rem;
    transition: all var(--transition);
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-contact ul li {
    color: var(--text-sub);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-bottom {
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    color: var(--text-weak);
    font-size: 0.82rem;
}

.back-top {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(42, 33, 26, 0.8);
    border: 1px solid var(--border-main);
    color: var(--primary-light);
    font-size: 1.2rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition);
}

.back-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-top:hover {
    background: rgba(226, 164, 95, 0.15);
    border-color: var(--primary);
    color: var(--primary-light);
}

@media (max-width: 1024px) {
    .dock {
        width: min(680px, 100%);
    }

    .dock-nav a {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .article-main {
        padding: 120px 0 64px;
        background: linear-gradient(to bottom, rgba(23, 18, 14, 0.94), rgba(18, 14, 10, 0.97)), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
    }

    .site-header {
        top: 12px;
        padding: 0 12px;
    }

    .dock {
        padding: 8px 12px 8px 16px;
        gap: 8px;
    }

    .dock-nav {
        position: fixed;
        top: 72px;
        bottom: 12px;
        left: 12px;
        right: 12px;
        background: rgba(18, 14, 10, 0.96);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border-radius: 24px;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 6px;
        display: none;
        z-index: 180;
        border: 1px solid var(--border-main);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
        margin: 0;
    }

    .dock-nav.open {
        display: flex;
    }

    .dock-nav a {
        font-size: 1.25rem;
        padding: 14px 36px;
        border-radius: var(--radius-pill);
    }

    .dock-nav-cta {
        display: inline-flex;
        margin-top: 22px;
        background: var(--gradient);
        color: #fff;
        font-weight: 600;
        font-size: 1.05rem;
        padding: 14px 44px;
        border-radius: var(--radius-pill);
        box-shadow: 0 6px 22px rgba(200, 110, 58, 0.35);
    }

    .dock-nav-cta:hover {
        color: #fff;
        filter: brightness(1.05);
        transform: translateY(-2px);
    }

    .dock-search {
        display: none;
    }

    .dock-burger {
        display: flex;
    }

    .dock-cta {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    .dock-logo span:last-child {
        font-size: 0.92rem;
    }

    .article-card {
        padding: 28px;
    }

    .article-content {
        font-size: 0.96rem;
    }

    .article-content h2 {
        font-size: 1.3rem;
    }

    .related-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 520px) {
    .article-main {
        padding: 108px 0 48px;
    }

    .breadcrumb {
        font-size: 0.78rem;
        gap: 6px;
        margin-bottom: 20px;
    }

    .crumb-current {
        max-width: 160px;
    }

    .article-card {
        padding: 20px 16px;
        border-radius: 16px;
    }

    .article-head {
        margin-bottom: 24px;
    }

    .article-head h1 {
        font-size: 1.5rem;
    }

    .article-meta {
        font-size: 0.78rem;
        gap: 6px;
    }

    .article-cover {
        margin-bottom: 24px;
        border-radius: 10px;
    }

    .article-content h2 {
        font-size: 1.2rem;
    }

    .article-content h3 {
        font-size: 1.05rem;
    }

    .article-bottom {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .article-actions {
        width: 100%;
    }

    .article-actions .btn-back,
    .article-actions .btn-primary {
        flex: 1;
        justify-content: center;
        text-align: center;
        padding: 11px 14px;
    }

    .related-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .section-title {
        font-size: 1.2rem;
    }

    .related-body {
        padding: 14px 16px 16px;
    }

    .related-body h3 {
        font-size: 0.98rem;
    }

    .article-empty {
        padding: 60px 20px;
    }

    .article-empty h1 {
        font-size: 1.6rem;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 6px;
    }

    .back-top {
        right: 16px;
        bottom: 16px;
        width: 40px;
        height: 40px;
        font-size: 1.05rem;
    }
}