/* roulang page: index */
:root{
  --primary-900:#0F2A23;
  --primary-700:#1A3D34;
  --primary-500:#2E6252;
  --dark-bg:#0B201B;
  --accent-400:#E8B968;
  --accent-600:#C78A2E;
  --neutral-100:#F7F3EC;
  --neutral-200:#EDE6DB;
  --neutral-500:#6F6A60;
  --neutral-700:#3D3A34;
  --line-soft:rgba(15,42,35,.12);
  --white:#fff;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(15,42,35,.06);
  --shadow-lg:0 10px 24px rgba(15,42,35,.12);
  --font-serif:"Noto Serif SC","Songti SC",serif;
  --font-sans:PingFang SC,"Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container:1200px;
  --spacer:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background:#FBF8F3;color:var(--neutral-700);line-height:1.8;font-size:16px;padding-bottom:72px}
body.no-tab{padding-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s,transform .2s}
img{max-width:100%;display:block;object-fit:cover}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4,h5{font-family:var(--font-serif);line-height:1.4;color:var(--primary-900);font-weight:700}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--spacer) 0}
.section-tag{display:inline-block;background:rgba(232,185,104,.15);color:var(--accent-600);font-size:13px;font-weight:600;padding:4px 14px;border-radius:100px;letter-spacing:.5px;margin-bottom:16px}
.section-head{margin-bottom:48px;max-width:680px}
.section-head h2{font-size:32px;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--neutral-500);line-height:1.7}
.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-weight:600;border-radius:10px;padding:12px 28px;cursor:pointer;border:1.5px solid transparent;transition:all .2s;font-size:15px;line-height:1.4;text-align:center}
.btn:focus-visible{outline:2px dashed var(--accent-600);outline-offset:2px}
.btn-primary{background:var(--primary-700);color:#fff;border-color:var(--primary-700)}
.btn-primary:hover{background:var(--primary-500);border-color:var(--primary-500);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(-1px)}
.btn-accent{background:var(--accent-400);color:var(--primary-900);border-color:var(--accent-400)}
.btn-accent:hover{background:#f0c97a;border-color:#f0c97a;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-accent:active{transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--primary-700);border-color:var(--primary-700)}
.btn-outline:hover{background:var(--primary-700);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-outline:active{transform:translateY(-1px)}

/* ===== Header Desktop ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:linear-gradient(180deg,rgba(11,32,27,.92) 0%,rgba(15,42,35,.85) 100%);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(11,32,27,.97);box-shadow:0 4px 20px rgba(0,0,0,.2)}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--accent-400),var(--accent-600));display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(199,138,46,.3)}
.logo-icon svg{width:22px;height:22px;stroke:var(--primary-900);stroke-width:2;fill:none}
.logo-text{font-family:var(--font-serif);font-size:22px;font-weight:700;color:#fff;letter-spacing:2px}
.header-nav{display:flex;align-items:center;gap:36px}
.header-nav a{color:rgba(255,255,255,.75);font-size:15px;font-weight:500;position:relative;padding:6px 2px;transition:color .2s}
.header-nav a:hover{color:#fff}
.header-nav a.active{color:var(--accent-400)}
.header-nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent-400);border-radius:2px}
.header-cta{margin-left:8px}
.header-cta .btn{font-size:14px;padding:10px 22px;border-radius:8px}

/* ===== Mobile Header ===== */
.mobile-header{display:none;position:fixed;top:0;left:0;right:0;z-index:1000;height:60px;background:rgba(11,32,27,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);align-items:center;justify-content:space-between;padding:0 16px}
.mobile-header .logo-text{font-size:19px}
.menu-toggle{width:40px;height:40px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.menu-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{display:none;position:fixed;top:60px;left:0;right:0;bottom:0;background:rgba(11,32,27,.98);backdrop-filter:blur(16px);z-index:999;padding:40px 24px;flex-direction:column;gap:8px}
.mobile-drawer a{color:rgba(255,255,255,.85);font-size:20px;font-weight:500;padding:16px 8px;border-bottom:1px solid rgba(255,255,255,.08);font-family:var(--font-serif)}
.mobile-drawer a:hover{color:var(--accent-400)}
.mobile-drawer a.active{color:var(--accent-400)}

/* ===== Bottom Tab ===== */
.bottom-tab{display:none;position:fixed;bottom:0;left:0;right:0;z-index:1000;background:rgba(11,32,27,.97);border-top:1px solid rgba(255,255,255,.08);padding:8px 8px calc(8px + env(safe-area-inset-bottom));backdrop-filter:blur(12px)}
.tab-bar{display:flex;align-items:center;justify-content:space-around;max-width:480px;margin:0 auto}
.tab-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 8px;border-radius:10px;min-width:64px;color:rgba(255,255,255,.55);transition:color .2s,background .2s;background:transparent;border:none;cursor:pointer}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8}
.tab-item span{font-size:12px;font-weight:500;line-height:1.2}
.tab-item.active{color:var(--accent-400);background:rgba(232,185,104,.1)}
.tab-item:hover{color:var(--accent-400)}
.tab-item:active{transform:scale(.96)}
.tab-item:focus-visible{outline:2px dashed var(--accent-600);outline-offset:2px}

/* ===== Hero ===== */
.hero{position:relative;min-height:86vh;max-height:820px;display:flex;align-items:center;background-image:url('/assets/images/backpic/back-1.jpg');background-size:cover;background-position:center;padding:140px 0 100px;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,32,27,.94) 0%,rgba(15,42,35,.82) 45%,rgba(15,42,35,.35) 100%);z-index:1}
.hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(0deg,rgba(11,32,27,.5),transparent);z-index:1}
.hero-inner{position:relative;z-index:2;max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(232,185,104,.15);border:1px solid rgba(232,185,104,.35);color:var(--accent-400);font-size:14px;font-weight:500;padding:6px 18px;border-radius:100px;margin-bottom:24px}
.hero-badge svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8}
.hero h1{font-size:46px;line-height:1.25;color:#fff;max-width:720px;margin-bottom:20px}
.hero h1 .accent{color:var(--accent-400)}
.hero-desc{font-size:17px;line-height:1.8;color:rgba(255,255,255,.8);max-width:580px;margin-bottom:36px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:48px}
.hero-icons{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:720px;margin-bottom:40px}
.hero-icon-item{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:18px 14px;text-align:center;transition:background .3s,border-color .3s,transform .3s}
.hero-icon-item:hover{background:rgba(255,255,255,.14);border-color:var(--accent-400);transform:translateY(-4px)}
.hero-icon-item svg{width:26px;height:26px;stroke:var(--accent-400);fill:none;stroke-width:1.6;margin:0 auto 10px;display:block}
.hero-icon-item span{display:block;font-size:14px;color:rgba(255,255,255,.85);font-weight:500}
.hero-status{display:inline-flex;flex-wrap:wrap;gap:0;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:16px 24px;max-width:640px}
.hero-status .status-item{display:flex;align-items:center;gap:10px;padding:0 16px;border-right:1px solid rgba(255,255,255,.15)}
.hero-status .status-item:first-child{padding-left:0}
.hero-status .status-item:last-child{border-right:none}
.hero-status .status-ico{width:20px;height:20px;stroke:var(--accent-400);fill:none;stroke-width:1.8}
.hero-status .status-num{font-size:15px;font-weight:700;color:#fff}
.hero-status .status-label{font-size:13px;color:rgba(255,255,255,.65)}

/* ===== Metrics ===== */
.metrics{background:var(--primary-900);padding:64px 0;position:relative;overflow:hidden}
.metrics::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.jpg');background-size:cover;background-position:center;opacity:.06}
.metrics::after{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(232,185,104,.4),transparent)}
.metrics-inner{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.metric-item{text-align:center;padding:16px 24px;border-right:1px solid rgba(255,255,255,.08)}
.metric-item:last-child{border-right:none}
.metric-num{font-size:48px;font-weight:700;color:var(--accent-400);line-height:1.2;font-family:var(--font-serif);font-variant-numeric:tabular-nums;letter-spacing:-1px}
.metric-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:6px}
.metric-note{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);z-index:1;font-size:12px;color:rgba(255,255,255,.35);text-align:center}

/* ===== Category Nav ===== */
.catnav{padding:72px 0;background:var(--neutral-100)}
.catnav-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.catnav-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-md);padding:28px 24px;text-align:center;transition:all .3s;position:relative;overflow:hidden}
.catnav-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent-400),var(--accent-600));opacity:0;transition:opacity .3s}
.catnav-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--accent-400)}
.catnav-card:hover::before{opacity:1}
.catnav-card .cat-ico{width:46px;height:46px;border-radius:12px;background:rgba(232,185,104,.12);display:flex;align-items:center;justify-content:center;margin:0 auto 16px}
.catnav-card .cat-ico svg{width:24px;height:24px;stroke:var(--accent-600);fill:none;stroke-width:1.6}
.catnav-card h3{font-size:17px;margin-bottom:8px;font-family:var(--font-sans)}
.catnav-card p{font-size:13px;color:var(--neutral-500);line-height:1.6}
.catnav-card .cat-link{display:inline-block;margin-top:14px;font-size:14px;font-weight:600;color:var(--accent-600)}
.catnav-card .cat-link:hover{color:var(--primary-700)}

/* ===== Services ===== */
.services{background:#fff;padding:var(--spacer) 0}
.services-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.service-card{background:var(--neutral-100);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;transition:all .3s;display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-400)}
.service-card.wide{grid-column:span 1}
.service-card .card-img{position:relative;aspect-ratio:16/8;overflow:hidden}
.service-card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.service-card:hover .card-img img{transform:scale(1.04)}
.service-card .card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(11,32,27,.3),transparent 50%)}
.service-card .card-body{flex:1;padding:28px 28px 24px;display:flex;flex-direction:column}
.service-card .card-num{font-family:var(--font-serif);font-size:36px;font-weight:700;color:var(--accent-400);line-height:1;margin-bottom:12px}
.service-card h3{font-size:22px;margin-bottom:10px;font-family:var(--font-serif)}
.service-card p{font-size:14px;color:var(--neutral-500);line-height:1.7;flex:1;margin-bottom:16px}
.service-card .card-link{font-size:14px;font-weight:600;color:var(--primary-700);display:inline-flex;align-items:center;gap:6px}
.service-card .card-link:hover{color:var(--accent-600)}
.service-card .card-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .2s}
.service-card .card-link:hover svg{transform:translateX(4px)}
.card-tag{position:absolute;top:14px;left:14px;z-index:2;background:rgba(11,32,27,.8);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:100px;backdrop-filter:blur(6px)}

/* ===== Comparison ===== */
.compare{background:var(--neutral-100);padding:var(--spacer) 0}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.compare-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:36px 32px;transition:all .3s}
.compare-card.old{opacity:.75}
.compare-card.old:hover{opacity:1;transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.compare-card.new{position:relative;border:2px solid var(--primary-700);box-shadow:0 8px 32px rgba(15,42,35,.1)}
.compare-card.new:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(15,42,35,.16)}
.compare-badge{position:absolute;top:-14px;right:24px;background:var(--accent-400);color:var(--primary-900);font-size:13px;font-weight:700;padding:4px 18px;border-radius:100px;box-shadow:0 4px 12px rgba(232,185,104,.4)}
.compare-card h3{font-size:22px;margin-bottom:20px;font-family:var(--font-serif);display:flex;align-items:center;gap:10px}
.compare-card h3 svg{width:24px;height:24px;stroke:var(--primary-500);fill:none;stroke-width:1.8}
.compare-card.new h3 svg{stroke:var(--accent-600)}
.compare-list{display:flex;flex-direction:column;gap:14px}
.compare-item{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--neutral-700);line-height:1.5}
.compare-item .ico{width:20px;height:20px;flex-shrink:0;margin-top:2px}
.compare-item .ico-yes{stroke:var(--primary-500)}
.compare-item .ico-no{stroke:var(--neutral-500)}
.compare-item .y{color:var(--primary-700);font-weight:500}
.compare-item .n{color:var(--neutral-500)}
.compare-bar{flex:1;height:8px;background:var(--neutral-200);border-radius:4px;overflow:hidden;margin-top:4px}
.compare-bar-fill{height:100%;background:var(--accent-400);border-radius:4px}
.compare-bar-fill.wide{background:linear-gradient(90deg,var(--accent-400),var(--accent-600))}
.compare-metric{display:flex;align-items:center;gap:10px;font-size:15px}
.compare-metric .bar-wrap{flex:1;height:8px;background:var(--neutral-200);border-radius:4px;overflow:hidden}
.compare-metric .val{font-weight:700;color:var(--primary-900);font-size:18px;min-width:44px;text-align:right}

/* ===== News ===== */
.news{background:#fff;padding:var(--spacer) 0}
.news-layout{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{display:flex;align-items:baseline;gap:24px;padding:20px 0;border-bottom:1px solid var(--line-soft);transition:background .2s;border-radius:8px}
.news-item:hover{background:var(--neutral-100)}
.news-item:first-child{padding-top:0}
.news-item .news-date{font-size:13px;color:var(--neutral-500);flex-shrink:0;min-width:76px;font-variant-numeric:tabular-nums}
.news-item .news-link{flex:1;font-size:16px;font-weight:500;color:var(--neutral-700);line-height:1.5}
.news-item .news-link:hover{color:var(--primary-700)}
.news-item .news-badge{flex-shrink:0;font-size:12px;background:rgba(232,185,104,.15);color:var(--accent-600);padding:2px 10px;border-radius:100px;font-weight:500}
.hot-panel{background:var(--neutral-100);border:1px solid var(--line-soft);border-radius:var(--radius-lg);padding:28px 24px;position:sticky;top:100px}
.hot-panel h3{font-size:19px;margin-bottom:20px;font-family:var(--font-serif);display:flex;align-items:center;gap:8px}
.hot-panel h3 svg{width:20px;height:20px;stroke:var(--accent-600);fill:none;stroke-width:1.8}
.hot-top{display:flex;flex-direction:column;gap:14px}
.hot-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:#fff;border:1px solid var(--line-soft);border-radius:10px;transition:all .2s}
.hot-item:hover{transform:translateX(4px);border-color:var(--accent-400);box-shadow:var(--shadow-sm)}
.hot-rank{font-family:var(--font-serif);font-size:24px;font-weight:700;color:var(--accent-400);min-width:30px;text-align:center}
.hot-item:nth-child(1) .hot-rank{color:var(--accent-600)}
.hot-item:nth-child(2) .hot-rank{color:var(--accent-600)}
.hot-item:nth-child(3) .hot-rank{color:var(--accent-600)}
.hot-info{flex:1}
.hot-title{font-size:14px;font-weight:600;color:var(--neutral-700);line-height:1.4}
.hot-meta{font-size:12px;color:var(--neutral-500);margin-top:2px}
.hot-tag{font-size:12px;background:rgba(46,98,82,.1);color:var(--primary-700);padding:2px 10px;border-radius:100px;flex-shrink:0}

/* ===== FAQ ===== */
.faq-section{background:var(--neutral-100);padding:var(--spacer) 0}
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line-soft);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:box-shadow .3s}
.faq-item.open{border-color:var(--accent-400);box-shadow:0 4px 20px rgba(15,42,35,.06)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;font-size:17px;font-weight:600;color:var(--primary-900);gap:16px;font-family:var(--font-sans)}
.faq-q .faq-icon{width:28px;height:28px;flex-shrink:0;border-radius:50%;background:rgba(232,185,104,.15);display:flex;align-items:center;justify-content:center;position:relative}
.faq-q .faq-icon::before,.faq-q .faq-icon::after{content:'';position:absolute;background:var(--accent-600);border-radius:2px;transition:transform .3s}
.faq-q .faq-icon::before{width:12px;height:2px}
.faq-q .faq-icon::after{width:2px;height:12px}
.faq-item.open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.8;color:var(--neutral-500);border-top:1px solid var(--line-soft);margin:0 24px;padding-left:0;padding-right:0}
.faq-item.open .faq-a{max-height:400px}

/* ===== CTA Form ===== */
.contact{background:var(--primary-900);padding:var(--spacer) 0;position:relative;overflow:hidden}
.contact::before{content:'';position:absolute;inset:0;background-image:url('/assets/images/backpic/back-5.jpg');background-size:cover;background-position:center;opacity:.08}
.contact::after{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(232,185,104,.5),transparent)}
.contact-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:start}
.contact-info h2{color:#fff;font-size:34px;margin-bottom:16px}
.contact-info p{color:rgba(255,255,255,.75);font-size:16px;line-height:1.8;margin-bottom:28px}
.contact-points{display:flex;flex-direction:column;gap:16px}
.contact-point{display:flex;align-items:flex-start;gap:12px;color:rgba(255,255,255,.8);font-size:15px}
.contact-point svg{width:22px;height:22px;stroke:var(--accent-400);fill:none;stroke-width:1.8;flex-shrink:0;margin-top:2px}
.form-card{background:#fff;border-radius:var(--radius-lg);padding:36px;box-shadow:0 12px 40px rgba(0,0,0,.2)}
.form-card h3{font-size:22px;margin-bottom:6px;color:var(--primary-900)}
.form-card .form-sub{font-size:14px;color:var(--neutral-500);margin-bottom:24px}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;font-weight:600;color:var(--primary-900);margin-bottom:8px}
.form-group input,.form-group select,.form-group textarea{width:100%;height:48px;border:1.5px solid var(--line-soft);border-radius:10px;padding:0 16px;font-size:15px;color:var(--neutral-700);background:#fff;transition:border-color .2s,box-shadow .2s;font-family:var(--font-sans);-webkit-appearance:none;appearance:none}
.form-group textarea{height:auto;padding:14px 16px;resize:vertical;min-height:90px;line-height:1.6}
.form-group select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%236F6A60' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;cursor:pointer}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent-400);box-shadow:0 0 0 3px rgba(232,185,104,.2)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--neutral-500)}
.form-submit{width:100%;height:48px;background:var(--primary-700);color:#fff;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:background .2s,transform .2s;margin-top:8px}
.form-submit:hover{background:var(--primary-500);transform:translateY(-2px)}
.form-submit:active{transform:translateY(-1px)}
.form-submit:focus-visible{outline:2px dashed var(--accent-600);outline-offset:2px}
.form-success{display:none;background:rgba(46,98,82,.1);border:1px solid var(--primary-500);color:var(--primary-700);padding:14px 20px;border-radius:10px;font-size:14px;font-weight:500;margin-top:16px;text-align:center}
.privacy-note{font-size:12px;color:var(--neutral-500);text-align:center;margin-top:14px;line-height:1.6}

/* ===== Footer ===== */
.site-footer{background:var(--dark-bg);padding:72px 0 32px;color:rgba(255,255,255,.65)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .logo-text{color:#fff;font-size:24px;margin-bottom:12px;display:block}
.footer-brand p{font-size:14px;line-height:1.7;max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-family:var(--font-sans);font-weight:600;margin-bottom:18px;letter-spacing:.5px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.6);font-size:14px;transition:color .2s,padding-left .2s}
.footer-col a:hover{color:var(--accent-400);padding-left:4px}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent-400)}
.footer-legal{display:flex;gap:20px}

/* ===== Responsive ===== */
@media (min-width:992px){
  .append-trigger{margin-left:auto}
}
@media (max-width:991px){
  .site-header{display:none}
  .mobile-header{display:flex}
  .bottom-tab{display:block}
  body{padding-bottom:76px}
  .section{padding:64px 0}
  .container{padding:0 16px}
  .section-head h2{font-size:26px}
  .hero{min-height:auto;padding:120px 0 80px}
  .hero h1{font-size:32px}
  .hero-icon-item{padding:14px 10px}
  .hero-icon-item span{font-size:13px}
  .metrics-inner{grid-template-columns:1fr 1fr;gap:0}
  .metric-item{padding:20px 12px}
  .metric-item:nth-child(2){border-right:none}
  .metric-item:nth-child(3){border-top:1px solid rgba(255,255,255,.05)}
  .metric-item:nth-child(4){border-top:1px solid rgba(255,255,255,.05);border-right:none}
  .metric-num{font-size:38px}
  .catnav-inner{grid-template-columns:1fr 1fr;gap:16px}
  .services-grid{grid-template-columns:1fr}
  .service-card.wide{grid-column:auto}
  .compare-grid{grid-template-columns:1fr;gap:24px}
  .compare-card{padding:28px 20px}
  .news-layout{grid-template-columns:1fr;gap:32px}
  .hot-panel{position:static}
  .contact-inner{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-status{width:100%}
  .hero-status .status-item{padding:0 8px}
}
@media (max-width:575px){
  .hero{padding:110px 0 60px}
  .hero h1{font-size:28px}
  .hero-desc{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-icons{grid-template-columns:1fr 1fr;gap:12px}
  .hero-status{padding:12px 16px;flex-wrap:wrap;gap:4px}
  .hero-status .status-item{padding:4px 8px;border-right:none}
  .metric-num{font-size:32px}
  .catnav-inner{grid-template-columns:1fr 1fr;gap:12px}
  .catnav-card{padding:20px 12px}
  .catnav-card h3{font-size:15px}
  .catnav-card p{display:none}
  .section-pad{padding:48px 0}
  .service-card .card-body{padding:22px 18px}
  .news-item{flex-wrap:wrap;gap:8px}
  .news-date{min-width:auto;width:100%}
  .form-card{padding:24px 18px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-legal{gap:12px}
  .tab-item{min-width:56px}
  .compare-card{padding:24px 16px}
  .compare-metric{flex-direction:column;align-items:flex-start;gap:4px}
  .compare-metric .val{font-size:20px}
}

/* roulang page: category1 */
:root{
  --primary-900:#0F2A23;
  --primary-700:#1A3D34;
  --primary-500:#2E6252;
  --dark-bg:#0B201B;
  --accent-400:#E8B968;
  --accent-600:#C78A2E;
  --neutral-100:#F7F3EC;
  --neutral-200:#EDE6DB;
  --neutral-500:#6F6A60;
  --neutral-700:#3D3A34;
  --line-soft:rgba(15,42,35,.12);
  --white:#fff;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(15,42,35,.06);
  --shadow-lg:0 10px 24px rgba(15,42,35,.12);
  --font-serif:"Noto Serif SC","Songti SC",serif;
  --font-sans:PingFang SC,"Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --container:1200px;
  --spacer:96px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-sans);background:#FBF8F3;color:var(--neutral-700);line-height:1.8;font-size:16px;padding-bottom:80px}
body.no-tab{padding-bottom:0}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s,transform .2s}
img{max-width:100%;display:block;object-fit:cover}
button,input,select,textarea{font-family:inherit;font-size:inherit;border:none;outline:none;background:none}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--spacer) 0}
.section-tag{display:inline-block;background:rgba(232,185,104,.15);color:var(--accent-600);font-size:13px;font-weight:600;padding:4px 14px;border-radius:100px;letter-spacing:.5px;margin-bottom:16px}
.section-head{margin-bottom:48px;max-width:680px}
.section-head h2{font-size:32px;margin-bottom:12px;font-family:var(--font-serif);line-height:1.4}
.section-head p{font-size:16px;color:var(--neutral-500);line-height:1.7}

.btn{display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-sans);font-weight:600;border-radius:10px;padding:12px 28px;cursor:pointer;border:1.5px solid transparent;transition:all .2s;font-size:15px;line-height:1.4;text-align:center}
.btn:focus-visible{outline:2px dashed var(--accent-600);outline-offset:2px}
.btn-primary{background:var(--primary-700);color:#fff;border-color:var(--primary-700)}
.btn-primary:hover{background:var(--primary-500);border-color:var(--primary-500);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-primary:active{transform:translateY(-1px)}
.btn-accent{background:var(--accent-400);color:var(--primary-900);border-color:var(--accent-400)}
.btn-accent:hover{background:#f0c97a;border-color:#f0c97a;transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn-accent:active{transform:translateY(-1px)}
.btn-outline{background:transparent;color:var(--primary-700);border-color:var(--primary-700)}
.btn-outline:hover{background:var(--primary-700);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-outline:active{transform:translateY(-1px)}
.btn-lg{padding:14px 36px;font-size:16px}
.btn-sm{padding:8px 20px;font-size:13px;border-radius:8px}

.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:linear-gradient(180deg,rgba(11,32,27,.92) 0%,rgba(15,42,35,.85) 100%);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);transition:background .3s,box-shadow .3s}
.site-header.scrolled{background:rgba(11,32,27,.97);box-shadow:0 4px 20px rgba(0,0,0,.2)}
.header-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--accent-400),var(--accent-600));display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(199,138,46,.3)}
.logo-icon svg{width:22px;height:22px;stroke:var(--primary-900);stroke-width:2;fill:none}
.logo-text{font-family:var(--font-serif);font-size:22px;font-weight:700;color:#fff;letter-spacing:2px}
.header-nav{display:flex;align-items:center;gap:36px}
.header-nav a{color:rgba(255,255,255,.75);font-size:15px;font-weight:500;position:relative;padding:6px 2px;transition:color .2s}
.header-nav a:hover{color:#fff}
.header-nav a.active{color:var(--accent-400)}
.header-nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--accent-400);border-radius:2px}
.header-cta{margin-left:8px}
.header-cta .btn{font-size:14px;padding:10px 22px;border-radius:8px}

.mobile-header{display:none;position:fixed;top:0;left:0;right:0;z-index:1000;height:60px;background:rgba(11,32,27,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06);align-items:center;justify-content:space-between;padding:0 16px}
.mobile-header .logo-text{font-size:19px}
.menu-toggle{width:40px;height:40px;border:1px solid rgba(255,255,255,.2);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.menu-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{display:none;position:fixed;top:60px;left:0;right:0;bottom:0;background:rgba(11,32,27,.98);backdrop-filter:blur(16px);z-index:999;padding:40px 24px;flex-direction:column;gap:8px}
.mobile-drawer a{color:rgba(255,255,255,.85);font-size:20px;font-weight:500;padding:16px 8px;border-bottom:1px solid rgba(255,255,255,.08);font-family:var(--font-serif)}
.mobile-drawer a:hover{color:var(--accent-400)}
.mobile-drawer a.active{color:var(--accent-400)}

.mobile-tab-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:999;background:rgba(11,32,27,.97);backdrop-filter:blur(12px);border-top:1px solid rgba(255,255,255,.08);padding:8px 12px calc(8px + env(safe-area-inset-bottom));justify-content:space-around}
.tab-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:4px 8px;border-radius:10px;min-width:64px;color:rgba(255,255,255,.55);transition:color .2s,background .2s;cursor:pointer}
.tab-item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tab-item span{font-size:12px;font-weight:500;line-height:1.2}
.tab-item.active{color:var(--accent-400);background:rgba(232,185,104,.1)}
.tab-item:hover{color:var(--accent-400)}
.tab-item:active{transform:scale(.96)}
.tab-item:focus-visible{outline:2px dashed var(--accent-600);outline-offset:2px}

.category-hero{position:relative;padding:148px 0 72px;background-image:url('/assets/images/backpic/back-2.jpg');background-size:cover;background-position:center;border-bottom:1px solid var(--line-soft)}
.category-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,32,27,.94) 0%,rgba(15,42,35,.82) 55%,rgba(15,42,35,.55) 100%)}
.category-hero-inner{position:relative;z-index:1;display:flex;align-items:flex-end;justify-content:space-between;gap:48px;flex-wrap:wrap}
.category-hero-left{max-width:640px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.6);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.6)}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb-sep{color:rgba(255,255,255,.4)}
.breadcrumb-current{color:var(--accent-400)}
.category-hero-left h1{font-family:var(--font-serif);font-size:42px;line-height:1.3;color:#fff;margin-bottom:14px;font-weight:700}
.category-hero-left p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:520px}
.category-hero-right{background:rgba(255,255,255,.1);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-lg);padding:26px 32px;min-width:240px}
.hero-stat-row{display:flex;align-items:center;gap:28px}
.hero-stat-item{display:flex;flex-direction:column;gap:2px}
.hero-stat-num{font-family:var(--font-serif);font-size:36px;font-weight:700;color:var(--accent-400);line-height:1.2;font-variant-numeric:tabular-nums}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.7)}
.hero-stat-divider{width:1px;height:36px;background:rgba(255,255,255,.2)}
.hero-stat-desc{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.65);line-height:1.6}

.category-list{background:#fff}
.feature-card{display:grid;grid-template-columns:1.1fr 1fr;gap:36px;background:var(--neutral-100);border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:48px;transition:box-shadow .3s,transform .3s}
.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.feature-card-media{position:relative;min-height:280px;overflow:hidden}
.feature-card-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.feature-card-body{padding:40px 40px 40px 0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.badge{display:inline-block;background:var(--accent-400);color:var(--primary-900);font-size:12px;font-weight:700;padding:4px 14px;border-radius:100px;letter-spacing:.5px;margin-bottom:16px}
.feature-card-body h3{font-family:var(--font-serif);font-size:24px;line-height:1.4;margin-bottom:12px;color:var(--primary-900)}
.feature-card-body p{font-size:15px;line-height:1.8;color:var(--neutral-500);margin-bottom:24px}

.duo-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;margin-bottom:48px}
.card-item{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-lg);overflow:hidden;transition:box-shadow .3s,transform .3s,border-color .3s}
.card-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:var(--accent-400)}
.duo-grid .card-item:nth-child(2),.duo-grid .card-item:nth-child(4){transform:translateY(48px)}
.duo-grid .card-item:nth-child(2):hover,.duo-grid .card-item:nth-child(4):hover{transform:translateY(44px)}
.card-item-media{position:relative;overflow:hidden;aspect-ratio:16/9}
.card-item-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.card-item:hover .card-item-media img{transform:scale(1.05)}
.card-number{position:absolute;top:12px;left:12px;background:rgba(11,32,27,.82);color:var(--accent-400);font-size:13px;font-weight:600;padding:4px 12px;border-radius:100px;backdrop-filter:blur(4px)}
.card-item-body{padding:24px}
.card-item-body h3{font-family:var(--font-serif);font-size:18px;line-height:1.5;margin-bottom:10px;color:var(--primary-900)}
.card-item-body p{font-size:14px;line-height:1.7;color:var(--neutral-500);margin-bottom:14px}
.card-meta{font-size:13px;color:var(--accent-600);font-weight:500}
.load-more-wrap{text-align:center;margin-top:64px}
.load-more-wrap .btn{padding:12px 40px}

.quote-block{background:var(--neutral-100);border-left:4px solid var(--accent-600);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:28px 36px;max-width:880px;margin:0 auto 96px}
.quote-block p{font-size:14px;line-height:1.8;color:var(--neutral-700)}

.cta-section{position:relative;padding:96px 0;background-image:url('/assets/images/backpic/back-4.jpg');background-size:cover;background-position:center;text-align:center}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(11,32,27,.86)}
.cta-section .container{position:relative;z-index:1}
.cta-section h2{font-family:var(--font-serif);font-size:34px;color:#fff;margin-bottom:14px;line-height:1.4}
.cta-section p{font-size:16px;color:rgba(255,255,255,.8);margin-bottom:32px}
.cta-section .btn-accent{padding:14px 44px;font-size:16px}

.site-footer{background:var(--dark-bg);color:rgba(255,255,255,.7);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text{color:#fff;font-family:var(--font-serif);font-size:22px;font-weight:700;letter-spacing:2px}
.footer-brand p{margin-top:12px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14px;color:rgba(255,255,255,.65)}
.footer-col ul a:hover{color:var(--accent-400)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}
.footer-legal{display:flex;gap:16px}
.footer-legal a{font-size:13px;color:rgba(255,255,255,.5)}
.footer-legal a:hover{color:var(--accent-400)}

@media (min-width:992px){
  body{padding-bottom:0}
  .mobile-header{display:none!important}
  .mobile-drawer{display:none!important}
  .mobile-tab-bar{display:none!important}
}
@media (max-width:991px){
  .site-header{display:none}
  .mobile-header{display:flex}
  .mobile-tab-bar{display:flex}
  .mobile-drawer{display:none}
  .mobile-drawer.open{display:flex}
  .category-hero{padding:100px 0 56px}
  .category-hero-inner{flex-direction:column;align-items:flex-start;gap:32px}
  .category-hero-right{width:100%}
  .feature-card{grid-template-columns:1fr}
  .feature-card-media{min-height:220px}
  .feature-card-body{padding:28px}
}
@media (max-width:767px){
  .section{padding:64px 0}
  .section-head h2{font-size:26px}
  .duo-grid{grid-template-columns:1fr;gap:24px}
  .duo-grid .card-item:nth-child(2),.duo-grid .card-item:nth-child(4){transform:none}
  .duo-grid .card-item:nth-child(2):hover,.duo-grid .card-item:nth-child(4):hover{transform:translateY(-4px)}
  .category-hero-left h1{font-size:30px}
  .quote-block{padding:20px 24px;margin-bottom:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-section h2{font-size:26px}
  .container{padding:0 16px}
}
@media (max-width:575px){
  body{font-size:15px}
  .hero-stat-num{font-size:30px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .feature-card-body{padding:20px}
  .feature-card-body h3{font-size:20px}
  .card-item-body{padding:18px}
  .load-more-wrap .btn{width:100%}
  .header-cta{display:none}
}