/* roulang page: index */
:root{
  --brand-900:#0B2E2B;
  --brand-700:#0F4A40;
  --brand-500:#17795F;
  --brand-300:#4FB894;
  --accent-500:#FF6B2C;
  --accent-400:#FFB03A;
  --sand-50:#FAF8F3;
  --sand-100:#F2EEE6;
  --line:#E3DED2;
  --ink-900:#12201E;
  --ink-600:#4B5F5B;
  --grad-brand:linear-gradient(135deg,#0B2E2B 0%,#17795F 62%,#4FB894 100%);
  --grad-accent:linear-gradient(120deg,#FF6B2C 0%,#FFB03A 100%);
  --shadow-card:0 10px 30px -12px rgba(11,46,43,.18);
  --shadow-card-hover:0 20px 46px -16px rgba(11,46,43,.30);
  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:16px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--sand-50);color:var(--ink-900);
  font-family:"Noto Sans SC",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (max-width:1023px){ .section{padding:76px 0;} .section-tight{padding:60px 0;} }
@media (max-width:640px){ .container-x{padding:0 16px;} .section{padding:56px 0;} .section-tight{padding:48px 0;} }

/* ---------- 顶部公告 ---------- */
.notice-bar{background:var(--brand-900);color:#E8F3EF;font-size:13.5px;}
.notice-inner{display:flex;align-items:center;gap:10px;min-height:42px;padding-top:6px;padding-bottom:6px;}
.notice-dot{width:8px;height:8px;border-radius:999px;background:var(--accent-400);flex:none;box-shadow:0 0 0 4px rgba(255,176,58,.18);}
.notice-inner p{flex:1;margin:0;line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.notice-close{background:transparent;border:0;cursor:pointer;color:#9FC9BC;font-size:18px;line-height:1;padding:6px 8px;border-radius:8px;transition:color .2s,background .2s;}
.notice-close:hover{color:#fff;background:rgba(255,255,255,.10);}
.notice-bar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,248,243,.84);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:box-shadow .22s ease-out,background .22s ease-out;}
.site-header.is-scrolled{background:rgba(250,248,243,.96);box-shadow:var(--shadow-card);}
.nav-bar{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 2px;transition:color .2s ease-out;white-space:nowrap;}
.nav-link::after{content:'';position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease-out;}
.nav-link:hover{color:var(--brand-700);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand-700);font-weight:700;}
.nav-link.active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{width:40px;height:40px;border-radius:13px;background:var(--grad-brand);display:grid;place-items:center;flex:none;box-shadow:0 8px 20px -10px rgba(11,46,43,.6);}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:800;letter-spacing:.5px;color:var(--brand-900);}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-600);letter-spacing:.5px;white-space:nowrap;}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;transition:border-color .2s,box-shadow .2s;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .22s ease-out,opacity .22s;}
.nav-toggle:hover{border-color:var(--brand-300);}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{display:none;background:#fff;border-top:1px solid var(--line);box-shadow:var(--shadow-card);}
.mobile-drawer.is-open{display:block;}
.mobile-drawer ul{padding:8px 0;}
.mobile-drawer li{border-bottom:1px solid var(--sand-100);}
.mobile-drawer li:last-child{border-bottom:0;}
.mobile-drawer a{display:flex;align-items:center;min-height:48px;padding:0 24px;font-size:15.5px;color:var(--ink-900);}
.mobile-drawer a.active{color:var(--brand-700);font-weight:700;}
.mobile-drawer .drawer-cta{padding:16px 24px 20px;}
.mobile-drawer .drawer-cta .btn-primary{width:100%;}

@media (max-width:900px){
  .nav-bar{grid-template-columns:44px 1fr 44px;height:60px;}
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .brand{justify-self:center;}
  .brand-text em{display:none;}
  .nav-right .btn-primary{display:none;}
  .nav-bar .nav-mobile-cta{display:inline-flex;width:44px;height:44px;justify-content:center;padding:0;}
}

/* ---------- 按钮 ---------- */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;border-radius:999px;background:var(--grad-accent);color:#fff;font-weight:700;font-size:15px;border:0;cursor:pointer;box-shadow:0 12px 26px -14px rgba(255,107,44,.95);transition:transform .2s ease-out,filter .2s ease-out,box-shadow .2s ease-out;}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 18px 32px -14px rgba(255,107,44,1);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;}
.btn-outline{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;background:transparent;border:1.5px solid rgba(255,255,255,.6);color:#fff;font-weight:600;font-size:15px;cursor:pointer;transition:background .2s ease-out,border-color .2s ease-out,transform .2s ease-out;}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px);}
.btn-outline:focus-visible{outline:2px solid #fff;outline-offset:2px;}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;background:#fff;border:1.5px solid var(--brand-700);color:var(--brand-700);font-weight:600;font-size:15px;cursor:pointer;transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;}
.btn-secondary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card);}
.btn-secondary:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);position:relative;padding:6px 0;}
.btn-ghost::after{content:'';position:absolute;left:0;right:0;bottom:0;height:1.5px;background:var(--grad-brand);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease-out;}
.btn-ghost:hover::after{transform:scaleX(1);}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- Hero ---------- */
.hero-wrap{padding:28px 0 0;}
.hero{position:relative;border-radius:var(--radius-xl);background:var(--grad-brand);color:#fff;overflow:hidden;padding:56px 48px;display:grid;grid-template-columns:55fr 45fr;gap:40px;align-items:center;min-height:600px;}
.hero::before{content:'';position:absolute;width:420px;height:420px;right:-120px;top:-160px;border-radius:50%;background:radial-gradient(circle,rgba(255,176,58,.28),transparent 68%);pointer-events:none;}
.hero::after{content:'';position:absolute;left:-80px;bottom:-140px;width:320px;height:320px;border-radius:50%;border:1.5px dashed rgba(79,184,148,.45);pointer-events:none;}
.hero-copy{position:relative;z-index:2;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase;color:#BDE6D7;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);padding:6px 14px;border-radius:999px;margin-bottom:22px;}
.hero h1{font-size:clamp(30px,4.6vw,54px);line-height:1.15;font-weight:800;letter-spacing:-.5px;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-visual{position:relative;z-index:2;}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);transform:rotate(-2deg);box-shadow:0 30px 60px -24px rgba(0,0,0,.55);}
.hero-chip{position:absolute;left:-14px;bottom:22px;background:rgba(250,248,243,.95);color:var(--brand-900);border-radius:18px;padding:12px 18px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;line-height:1.4;}
.hero-chip b{font-size:20px;font-variant-numeric:tabular-nums;}
.hero-chip small{font-size:11.5px;color:var(--ink-600);letter-spacing:.4px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-38px;padding:0 28px;position:relative;z-index:3;}
.stat-pill{background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:999px;padding:14px 20px;display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;box-shadow:var(--shadow-card);transition:transform .2s ease-out,border-color .2s ease-out;}
.stat-pill:hover{transform:translateY(-3px);border-color:var(--brand-300);}
.stat-num{font-size:22px;font-weight:800;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.stat-unit{font-size:12px;color:var(--accent-500);font-weight:700;}
.stat-desc{font-size:12.5px;color:var(--ink-600);width:100%;line-height:1.5;}

@media (max-width:1023px){
  .hero{grid-template-columns:1fr;padding:44px 32px;min-height:auto;}
  .hero-visual img{transform:none;}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:20px;padding:0;}
}
@media (max-width:640px){
  .hero{padding:32px 20px;border-radius:24px;}
  .hero-stats{grid-template-columns:1fr;gap:10px;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-chip{left:8px;bottom:10px;padding:10px 14px;}
}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;}
.sec-label{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:2px;text-transform:uppercase;color:var(--brand-500);font-weight:700;margin-bottom:12px;}
.sec-label::before{content:'';width:26px;height:3px;border-radius:3px;background:var(--grad-accent);}
.sec-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.4px;}
.sec-head p{margin-top:12px;color:var(--ink-600);font-size:15.5px;max-width:46em;}
@media (max-width:768px){ .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:30px;} }

/* ---------- 理念/故事 ---------- */
.story-grid{display:grid;grid-template-columns:44fr 56fr;gap:56px;align-items:center;}
.story-figure{position:relative;}
.story-figure img{width:100%;aspect-ratio:3/4;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow-card);}
.story-figure::after{content:'';position:absolute;right:-18px;bottom:-18px;width:120px;height:120px;border-radius:24px;background:var(--grad-accent);opacity:.85;z-index:-1;}
.story-steps{display:flex;flex-direction:column;gap:8px;}
.story-step{display:grid;grid-template-columns:64px 1fr;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);}
.story-step:last-child{border-bottom:0;}
.story-step .num{font-size:26px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand-300);letter-spacing:-1px;}
.story-step h3{font-size:19px;font-weight:700;margin-bottom:6px;}
.story-step p{font-size:15px;color:var(--ink-600);line-height:1.85;}
.grad-strip{margin-top:36px;height:88px;border-radius:var(--radius-lg);background:var(--grad-brand);display:flex;align-items:center;justify-content:space-between;padding:0 32px;color:#fff;gap:20px;flex-wrap:wrap;}
.grad-strip strong{font-size:17px;font-weight:700;}
.grad-strip span{font-size:13.5px;color:rgba(255,255,255,.78);}
@media (max-width:1023px){
  .story-grid{grid-template-columns:1fr;gap:32px;}
  .story-figure img{aspect-ratio:16/9;}
  .story-figure::after{display:none;}
}

/* ---------- 精选内容卡 ---------- */
.featured-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.feat-card{position:relative;border-radius:var(--radius-lg);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-card);overflow:hidden;padding:28px;display:flex;flex-direction:column;justify-content:space-between;gap:24px;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-300);}
.feat-card h3{font-size:21px;line-height:1.55;font-weight:700;letter-spacing:-.2px;}
.feat-card p{font-size:14.5px;color:var(--ink-600);line-height:1.8;margin-top:10px;}
.feat-a{grid-column:span 7;min-height:320px;}
.feat-b{grid-column:span 5;background:var(--brand-900);color:#fff;border-color:transparent;}
.feat-b h3{color:#fff;}
.feat-b p{color:rgba(255,255,255,.76);}
.feat-c{grid-column:span 5;background:var(--sand-100);}
.feat-d{grid-column:span 7;min-height:280px;padding:0;justify-content:flex-end;}
.feat-d .feat-d-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.feat-d .feat-d-body{position:relative;z-index:2;background:linear-gradient(180deg,rgba(11,46,43,0) 0%,rgba(11,46,43,.86) 72%);padding:80px 28px 26px;color:#fff;}
.feat-d .feat-d-body h3{color:#fff;}
.tag{display:inline-flex;align-items:center;font-size:12px;font-weight:700;letter-spacing:.6px;padding:4px 12px;border-radius:999px;border:1px solid var(--brand-300);color:var(--brand-700);background:rgba(79,184,148,.10);transition:transform .18s ease-out;}
.tag:hover{transform:scale(1.02);}
.tag-light{border-color:rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.12);}
@media (max-width:1023px){
  .feat-a,.feat-b,.feat-c,.feat-d{grid-column:span 12;}
  .feat-d{min-height:240px;}
}

/* ---------- 热度看板 ---------- */
.rank-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);padding:12px 32px;box-shadow:var(--shadow-card);}
.rank-item{display:grid;grid-template-columns:70px 1fr auto;gap:20px;align-items:center;padding:24px 0;border-bottom:1px solid var(--sand-100);transition:background .2s ease-out;}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{background:rgba(242,238,230,.5);}
.rank-no{font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-1.5px;color:var(--brand-300);line-height:1;}
.rank-item:hover .rank-no{color:var(--accent-500);}
.rank-body h3{font-size:17.5px;font-weight:700;line-height:1.6;}
.rank-body p{font-size:14px;color:var(--ink-600);margin-top:6px;line-height:1.7;}
.rank-bar{margin-top:12px;height:6px;border-radius:999px;background:var(--sand-100);overflow:hidden;max-width:340px;}
.rank-bar i{display:block;height:100%;border-radius:999px;background:var(--grad-accent);transition:width .4s ease-out;}
@media (max-width:768px){
  .rank-wrap{padding:8px 20px;border-radius:var(--radius-lg);}
  .rank-item{grid-template-columns:52px 1fr;gap:14px;}
  .rank-item .tag{grid-column:2;justify-self:start;}
  .rank-no{font-size:24px;}
}

/* ---------- 最新信息（CMS） ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:var(--brand-300);}
.news-cover{margin:14px 14px 0;border-radius:var(--radius-md);overflow:hidden;aspect-ratio:16/9;background:var(--grad-brand);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .32s ease-out;}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{margin-top:12px;font-size:17px;font-weight:700;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover .news-body h3{text-decoration:underline;text-decoration-color:var(--brand-300);text-underline-offset:4px;}
.news-body p{margin-top:10px;font-size:14px;color:var(--ink-600);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-600);}
.news-foot span.arrow{color:var(--brand-700);font-weight:700;transition:transform .2s ease-out;}
.news-card:hover .news-foot span.arrow{transform:translateX(4px);}
.news-empty{grid-column:1/-1;border:1px dashed var(--line);border-radius:var(--radius-lg);padding:48px 24px;text-align:center;background:#fff;}
.news-empty .ph{width:120px;height:120px;margin:0 auto 20px;border-radius:24px;background:var(--grad-brand);opacity:.85;}
.news-empty p{color:var(--ink-600);font-size:15px;margin-bottom:20px;}
@media (max-width:1023px){ .news-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:640px){ .news-grid{grid-template-columns:1fr;} }

/* ---------- 信任背书 ---------- */
.trust-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.trust-item{background:var(--sand-100);border:1px solid var(--line);border-radius:var(--radius-md);min-height:92px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;filter:grayscale(1);transition:filter .22s ease-out,transform .22s ease-out,border-color .22s ease-out;}
.trust-item:hover{filter:grayscale(0);transform:translateY(-3px);border-color:var(--brand-300);}
.trust-item b{font-size:15px;font-weight:700;color:var(--ink-900);letter-spacing:.5px;}
.trust-item small{font-size:11.5px;color:var(--ink-600);letter-spacing:.4px;}
.trust-bar{margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px;background:var(--brand-900);border-radius:var(--radius-lg);padding:28px 32px;color:#fff;}
.trust-bar div{border-left:2px solid var(--brand-300);padding-left:18px;}
.trust-bar b{display:block;font-size:20px;font-variant-numeric:tabular-nums;letter-spacing:-.5px;}
.trust-bar small{font-size:12.5px;color:rgba(255,255,255,.7);}
@media (max-width:768px){
  .trust-wall{grid-template-columns:repeat(2,1fr);}
  .trust-bar{grid-template-columns:1fr;gap:20px;padding:24px;}
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;position:relative;transition:border-color .2s ease-out,box-shadow .2s ease-out;}
.faq-item::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-brand);}
.faq-item.open{border-color:var(--brand-300);box-shadow:var(--shadow-card);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:transparent;border:0;cursor:pointer;text-align:left;padding:22px 26px;font-size:16.5px;font-weight:600;color:var(--ink-900);transition:color .2s ease-out;}
.faq-q:hover{color:var(--brand-700);}
.faq-q:focus-visible{outline:2px solid var(--brand-300);outline-offset:-3px;}
.faq-icon{width:20px;height:20px;position:relative;flex:none;}
.faq-icon::before,.faq-icon::after{content:'';position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .24s ease-out;}
.faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-icon::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-icon::after{transform:rotate(90deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.faq-item.open .faq-a{max-height:360px;}
.faq-a p{padding:0 26px 24px;font-size:15px;color:var(--ink-600);line-height:1.85;}

/* ---------- CTA / 表单 ---------- */
.cta-block{position:relative;border-radius:var(--radius-xl);background:var(--grad-brand);color:#fff;padding:56px 48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;overflow:hidden;}
.cta-block::after{content:'';position:absolute;right:-100px;top:-100px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(255,176,58,.26),transparent 70%);}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.3;}
.cta-copy p{margin-top:16px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:30em;}
.cta-form{position:relative;z-index:2;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-lg);padding:28px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:8px;letter-spacing:.3px;}
.field input,.field textarea{width:100%;background:var(--sand-50);border:1px solid transparent;border-radius:var(--radius-md);padding:13px 16px;font-size:15px;color:var(--ink-900);outline:none;transition:box-shadow .2s ease-out,border-color .2s ease-out;}
.field textarea{min-height:96px;resize:vertical;}
.field input:focus,.field textarea:focus{border-color:var(--brand-300);box-shadow:0 0 0 2px rgba(79,184,148,.45);}
.cta-form .btn-primary{width:100%;margin-top:6px;}
.form-hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.72);min-height:20px;}
@media (max-width:1023px){
  .cta-block{grid-template-columns:1fr;padding:40px 28px;gap:30px;border-radius:24px;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C7DBD4;position:relative;padding-top:72px;}
.site-footer::before{content:'';position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad-brand);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.6);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:30em;}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:1px;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease-out;}
.footer-col a:hover{color:var(--accent-500);}
.footer-col p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.9;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}
.to-top{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.75);transition:color .2s ease-out;}
.to-top:hover{color:var(--accent-500);}
@media (max-width:900px){ .footer-grid{grid-template-columns:1fr 1fr;gap:32px;} }
@media (max-width:520px){ .footer-grid{grid-template-columns:1fr;} }

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand-900:#0B2E2B;
  --brand-700:#0F4A40;
  --brand-500:#17795F;
  --brand-300:#4FB894;
  --accent-500:#FF6B2C;
  --accent-400:#FFB03A;
  --sand-50:#FAF8F3;
  --sand-100:#F2EEE6;
  --line:#E3DED2;
  --ink-900:#12201E;
  --ink-600:#4B5F5B;
  --grad-brand:linear-gradient(135deg,#0B2E2B 0%,#17795F 62%,#4FB894 100%);
  --grad-accent:linear-gradient(120deg,#FF6B2C 0%,#FFB03A 100%);
  --shadow-card:0 10px 30px -12px rgba(11,46,43,.18);
  --shadow-hover:0 20px 42px -18px rgba(11,46,43,.32);
  --r-lg:32px;
  --r-md:24px;
  --r-sm:16px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-900);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.tnum{font-variant-numeric:tabular-nums;}

.container-x{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(250,248,243,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);}
.nav-bar{max-width:1200px;margin:0 auto;height:72px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.nav-side{display:flex;align-items:center;gap:6px;flex:1;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;gap:10px;}
.nav-link{position:relative;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--ink-600);transition:color .2s var(--ease),background .2s var(--ease);}
.nav-link:hover{color:var(--brand-700);background:rgba(79,184,148,.12);}
.nav-link.active{color:var(--brand-900);font-weight:600;}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad-accent);}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:14px;background:var(--grad-brand);box-shadow:var(--shadow-card);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:19px;font-weight:800;letter-spacing:.5px;color:var(--brand-900);}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.6px;color:var(--ink-600);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .22s var(--ease),opacity .22s var(--ease);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.mobile-drawer{position:fixed;top:72px;left:0;right:0;z-index:55;background:var(--sand-50);border-bottom:1px solid var(--line);box-shadow:var(--shadow-card);padding:8px 16px 20px;display:flex;flex-direction:column;}
.mobile-drawer[hidden]{display:none;}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 14px;border-bottom:1px solid var(--line);font-size:15px;color:var(--ink-900);border-radius:12px;transition:background .2s var(--ease);}
.drawer-link:last-of-type{border-bottom:0;}
.drawer-link:hover{background:rgba(79,184,148,.12);}
.drawer-link.active{color:var(--brand-700);font-weight:600;}
.drawer-cta{margin-top:12px;width:100%;}

/* ---------- 按钮 ---------- */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border:0;border-radius:999px;background:var(--grad-accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 10px 22px -12px rgba(255,107,44,.8);transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease);}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(255,107,44,.85);}
.btn-primary:active{transform:translateY(1px);}
.btn-primary:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;}
.btn-primary[disabled]{opacity:.5;pointer-events:none;}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;border:1px solid var(--brand-700);color:var(--brand-700);background:transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);}
.btn-secondary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);}
.btn-secondary:active{transform:translateY(1px);}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);position:relative;}
.btn-ghost::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease);}
.btn-ghost:hover::after{transform:scaleX(1);}

/* ---------- 徽章 / 标签 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;border:1px solid var(--brand-300);color:var(--brand-700);font-size:13px;font-weight:600;background:rgba(79,184,148,.08);transition:transform .2s var(--ease);}
.chip:hover{transform:scale(1.02);}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:var(--sand-100);border:1px solid var(--line);color:var(--ink-600);font-size:13px;transition:border-color .2s var(--ease),color .2s var(--ease);}
.tag:hover{border-color:var(--brand-300);color:var(--brand-700);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.18em;font-weight:700;color:var(--brand-500);text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-accent);}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-600);}
.breadcrumb a{color:var(--ink-600);transition:color .2s var(--ease);}
.breadcrumb a:hover{color:var(--accent-500);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--brand-700);font-weight:600;max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--grad-brand);color:#fff;padding:52px 0 60px;}
.article-hero::after{content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;border:1px solid rgba(255,255,255,.16);}
.article-hero::before{content:"";position:absolute;left:-80px;bottom:-160px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(79,184,148,.35),transparent 65%);}
.article-hero .container-x{position:relative;z-index:2;}
.article-hero .breadcrumb{color:rgba(255,255,255,.75);}
.article-hero .breadcrumb a{color:rgba(255,255,255,.78);}
.article-hero .breadcrumb a:hover{color:#fff;}
.article-hero .breadcrumb .sep{color:rgba(255,255,255,.35);}
.article-hero .breadcrumb .current{color:#fff;}
.article-hero .chip{margin-top:20px;border-color:rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.12);}
.article-h1{font-size:clamp(28px,4.2vw,48px);line-height:1.2;font-weight:800;margin-top:16px;letter-spacing:.2px;max-width:900px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.82);}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--accent-400);display:inline-block;}

/* ---------- 文章布局 ---------- */
.article-wrap{padding:64px 0 88px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start;}
.article-main{min-width:0;}
.article-body{font-size:17px;line-height:1.95;color:var(--ink-900);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{position:relative;padding-left:18px;margin:2em 0 .8em;font-size:clamp(21px,2.4vw,27px);line-height:1.35;font-weight:700;}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:5px;border-radius:5px;background:var(--grad-accent);}
.article-body h3{margin:1.6em 0 .6em;font-size:19px;font-weight:700;}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:700;color:var(--brand-700);}
.article-body img{border-radius:20px;margin:24px auto;}
.article-body figure{margin:28px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--ink-600);margin-top:10px;}
.article-body blockquote{margin:1.6em 0;padding:18px 24px;background:var(--sand-100);border-left:4px solid var(--accent-500);border-radius:0 16px 16px 0;color:var(--ink-600);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.4em;list-style:revert;}
.article-body li{margin:.45em 0;}
.article-body ul li::marker{color:var(--brand-300);}
.article-body ol li::marker{color:var(--accent-500);font-weight:700;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent-500);}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;}
.article-body th{background:var(--sand-100);font-weight:700;}
.empty-state{padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-md);text-align:center;background:#fff;box-shadow:var(--shadow-card);}
.empty-figure{width:140px;height:110px;margin:0 auto 20px;border-radius:20px;background:var(--grad-brand);opacity:.9;}
.empty-state p{color:var(--ink-600);margin-bottom:18px;}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:22px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-card);}
.side-title{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--brand-900);display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-title::before{content:"";width:4px;height:16px;border-radius:4px;background:var(--grad-accent);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{display:block;padding:8px 10px;border-radius:12px;font-size:14px;color:var(--ink-600);line-height:1.6;transition:background .2s var(--ease),color .2s var(--ease);}
.toc-list a:hover{background:var(--sand-100);color:var(--brand-700);}
.toc-empty{font-size:14px;color:var(--ink-600);}
.side-post{display:flex;gap:12px;padding:10px 0;border-bottom:1px dashed var(--line);}
.side-post:last-child{border-bottom:0;padding-bottom:0;}
.side-post img{width:72px;height:54px;object-fit:cover;border-radius:12px;flex:0 0 auto;}
.side-post h4{font-size:14px;font-weight:600;line-height:1.6;color:var(--ink-900);transition:color .2s var(--ease);}
.side-post:hover h4{color:var(--brand-500);}
.side-post span{font-size:12px;color:var(--ink-600);}
.side-cta{background:var(--grad-brand);color:#fff;border:0;}
.side-cta .side-title{color:#fff;}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.85);margin-bottom:16px;}
.side-cta .btn-primary{width:100%;}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:44px;padding-top:28px;border-top:1px solid var(--line);}

/* ---------- 相关推荐 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--sand-100);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;margin-top:10px;}
.related-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:24px;}
.related-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;box-shadow:var(--shadow-card);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--brand-300);}
.related-card .cover{aspect-ratio:16/9;border-radius:var(--r-sm);overflow:hidden;margin-bottom:16px;background:var(--grad-brand);}
.related-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.related-card:hover .cover img{transform:scale(1.03);}
.related-card h3{font-size:18px;font-weight:700;line-height:1.55;margin:12px 0 8px;}
.related-card p{font-size:14px;color:var(--ink-600);line-height:1.8;}
.related-card .more{margin-top:auto;padding-top:16px;font-size:14px;font-weight:600;color:var(--brand-700);}
.related-card.tall h3{font-size:20px;}

/* ---------- 订阅 CTA ---------- */
.cta-block{background:var(--grad-brand);border-radius:var(--r-lg);padding:56px;color:#fff;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;position:relative;overflow:hidden;}
.cta-block::after{content:"";position:absolute;right:-80px;bottom:-100px;width:300px;height:300px;border-radius:50%;border:1px solid rgba(255,255,255,.14);}
.cta-block h2{font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.3;margin-bottom:14px;}
.cta-block p{color:rgba(255,255,255,.84);font-size:15px;line-height:1.9;}
.cta-form{position:relative;z-index:2;display:flex;flex-direction:column;gap:12px;}
.cta-form input,.cta-form textarea{width:100%;padding:14px 16px;border-radius:var(--r-sm);border:1px solid transparent;background:#fff;color:var(--ink-900);font-size:15px;transition:box-shadow .2s var(--ease);}
.cta-form input::placeholder,.cta-form textarea::placeholder{color:#9AA8A4;}
.cta-form input:focus,.cta-form textarea:focus{outline:none;box-shadow:0 0 0 3px var(--brand-300);}
.cta-form textarea{min-height:88px;resize:vertical;}
.form-note{font-size:13px;color:rgba(255,255,255,.78);min-height:20px;}
.form-note.ok{color:var(--accent-400);}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:88px;background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 28px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad-accent);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(255,255,255,.6);}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.8;transition:color .2s var(--ease);}
.footer-col a:hover{color:var(--accent-500);}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.62);}
.to-top{color:rgba(255,255,255,.8);transition:color .2s var(--ease);}
.to-top:hover{color:var(--accent-500);}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{gap:40px;}
}
@media (max-width:1023px){
  .nav-left,.nav-right .nav-link,.nav-right .btn-primary{display:none;}
  .nav-toggle{display:flex;}
  .nav-bar{height:72px;}
  .mobile-drawer{top:72px;}
  .article-layout{grid-template-columns:1fr;}
  .article-side{position:static;top:auto;}
  .cta-block{grid-template-columns:1fr;padding:40px 28px;}
  .related-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container-x{padding:0 16px;}
  .nav-bar{padding:0 16px;}
  .brand-text em{display:none;}
  .article-hero{padding:36px 0 44px;}
  .article-wrap{padding:44px 0 64px;}
  .article-body{font-size:16px;line-height:1.9;}
  .related-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .cta-block{padding:32px 20px;border-radius:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .meta-row{font-size:13px;}
  .breadcrumb .current{max-width:180px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B2E2B;
  --brand-700:#0F4A40;
  --brand-500:#17795F;
  --brand-300:#4FB894;
  --accent-500:#FF6B2C;
  --accent-400:#FFB03A;
  --sand-50:#FAF8F3;
  --sand-100:#F2EEE6;
  --line:#E3DED2;
  --ink-900:#12201E;
  --ink-600:#4B5F5B;
  --grad-brand:linear-gradient(135deg,#0B2E2B 0%,#17795F 62%,#4FB894 100%);
  --grad-accent:linear-gradient(120deg,#FF6B2C 0%,#FFB03A 100%);
  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-card:0 10px 30px -12px rgba(11,46,43,.18);
  --shadow-lift:0 20px 44px -16px rgba(11,46,43,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input,textarea{font:inherit}
::selection{background:var(--accent-400);color:#231000}
:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;border-radius:8px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);
}
.eyebrow::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--grad-accent)}
.section-title{font-size:clamp(24px,3vw,36px);line-height:1.25;font-weight:800;margin-top:14px;letter-spacing:-.01em}
.section-sub{font-size:15px;color:var(--ink-600);margin-top:14px;max-width:640px}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap}
.head-link{font-size:14px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;position:relative}
.head-link::after{content:"";position:absolute;left:0;right:18px;bottom:-3px;height:1.5px;background:var(--grad-accent);transform:scaleX(0);transform-origin:left;transition:transform .22s var(--ease)}
.head-link:hover::after{transform:scaleX(1)}
.head-link:hover{color:var(--accent-500)}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,248,243,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease);
}
.site-header.scrolled{box-shadow:var(--shadow-card);border-bottom-color:var(--line);background:rgba(250,248,243,.96)}
.nav-bar{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:16px;
  height:72px;
}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:10px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-600);
  transition:color .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--brand-700);background:rgba(23,121,95,.06)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-900);font-weight:700}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;padding:6px 10px;border-radius:999px;transition:transform .2s var(--ease)}
.brand:hover{transform:translateY(-1px)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:14px;
  background:var(--grad-brand);display:grid;place-items:center;
  box-shadow:0 8px 18px -8px rgba(11,46,43,.55);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;color:var(--brand-900);letter-spacing:.02em}
.brand-text em{font-size:11px;font-style:normal;color:var(--ink-600);letter-spacing:.05em}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--grad-accent);color:#fff;font-weight:700;font-size:15px;
  padding:12px 24px;border:0;border-radius:999px;cursor:pointer;
  box-shadow:0 10px 24px -10px rgba(255,107,44,.75);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 32px -12px rgba(255,107,44,.85)}
.btn-primary:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1.5px solid rgba(255,255,255,.72);color:#fff;font-weight:600;font-size:15px;
  padding:11px 22px;border-radius:999px;background:rgba(255,255,255,.06);
  transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.btn-outline:hover{background:rgba(255,255,255,.16);border-color:#fff;transform:translateY(-1px)}
.btn-outline:active{transform:translateY(1px)}
.btn-quiet{
  display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:14px;
  color:var(--brand-700);padding:10px 18px;border-radius:999px;border:1.5px solid var(--brand-700);
  background:transparent;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-quiet:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .22s var(--ease),opacity .22s var(--ease)}
.nav-toggle:hover{border-color:var(--brand-300)}
.menu-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-open .nav-toggle span:nth-child(2){opacity:0}
.menu-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{display:none}

/* ---------- page hero ---------- */
.page-hero{padding-top:28px}
.page-hero-inner{
  position:relative;overflow:hidden;
  background:var(--grad-brand);
  border-radius:var(--radius-xl);
  padding:46px 52px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  color:#fff;min-height:348px;
  box-shadow:0 28px 60px -30px rgba(11,46,43,.6);
}
.page-hero-inner::after{
  content:"";position:absolute;right:-130px;bottom:-190px;width:440px;height:440px;border-radius:50%;
  border:1px solid rgba(255,255,255,.18);pointer-events:none;
}
.page-hero-inner::before{
  content:"";position:absolute;right:80px;top:-90px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,58,.28),transparent 68%);pointer-events:none;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.86);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:#fff;font-weight:600}
.page-hero .eyebrow{color:var(--accent-400)}
.page-hero .eyebrow::before{background:var(--grad-accent)}
.page-hero h1{font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.015em;margin-top:16px}
.page-hero .lede{font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.84);margin-top:18px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.page-hero-media{position:relative}
.page-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:20px;transform:rotate(-2deg);
  box-shadow:0 24px 50px -20px rgba(0,0,0,.55);
  border:1px solid rgba(255,255,255,.18);
  transition:transform .35s var(--ease);
}
.page-hero-media img:hover{transform:rotate(-1deg) translateY(-4px)}
.media-chip{
  position:absolute;left:-14px;bottom:20px;
  background:rgba(250,248,243,.94);color:var(--brand-900);
  border-radius:999px;padding:10px 18px;font-size:13px;font-weight:700;
  display:flex;align-items:center;gap:8px;
  box-shadow:var(--shadow-card);
}
.media-chip i{width:8px;height:8px;border-radius:50%;background:var(--accent-500);display:block}

/* ---------- timeline ---------- */
.timeline{display:flex;flex-direction:column;gap:18px;margin-top:44px}
.tl-item{
  display:grid;grid-template-columns:104px 1fr;gap:28px;align-items:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 30px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.tl-item:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-lift)}
.tl-index{display:flex;flex-direction:column;gap:8px}
.tl-num{
  font-size:34px;font-weight:800;line-height:1;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.tl-tag{
  display:inline-flex;align-self:flex-start;
  font-size:12px;font-weight:700;letter-spacing:.04em;
  color:var(--brand-700);background:rgba(79,184,148,.14);
  border:1px solid rgba(79,184,148,.5);
  padding:3px 10px;border-radius:999px;white-space:nowrap;
}
.tl-body h3{font-size:20px;font-weight:700;line-height:1.5}
.tl-body p{font-size:15px;color:var(--ink-600);margin-top:10px;line-height:1.85}
.tl-progress{height:5px;border-radius:999px;background:var(--sand-100);overflow:hidden;margin-top:18px;max-width:340px}
.tl-progress i{display:block;height:100%;border-radius:999px;background:var(--grad-accent)}

/* ---------- spots ---------- */
.spots{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.spot-hero{
  grid-column:span 3;display:grid;grid-template-columns:1.05fr 1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.spot-hero:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-lift)}
.spot-hero-media{overflow:hidden}
.spot-hero-media img{width:100%;height:100%;min-height:280px;object-fit:cover;transition:transform .45s var(--ease)}
.spot-hero:hover .spot-hero-media img{transform:scale(1.03)}
.spot-hero-body{padding:38px 40px;display:flex;flex-direction:column;justify-content:center;gap:14px}
.spot-hero-body h3{font-size:clamp(21px,2.2vw,27px);font-weight:800;line-height:1.4}
.spot-hero-body p{font-size:15px;color:var(--ink-600);line-height:1.9}
.spot-tags{display:flex;flex-wrap:wrap;gap:9px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px;
  border:1px solid rgba(79,184,148,.55);color:var(--brand-700);background:rgba(79,184,148,.12);
}
.tag-hot{border-color:rgba(255,107,44,.5);color:#C2410C;background:rgba(255,107,44,.12)}
.tag-warm{border-color:rgba(255,176,58,.6);color:#92620A;background:rgba(255,176,58,.16)}
.spot-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.spot-card:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-lift)}
.spot-card-media{overflow:hidden}
.spot-card-media img{width:100%;aspect-ratio:3/4;object-fit:cover;transition:transform .45s var(--ease)}
.spot-card:hover .spot-card-media img{transform:scale(1.04)}
.spot-card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.spot-card-body h3{font-size:17.5px;font-weight:700;line-height:1.55}
.spot-card-body p{font-size:14px;color:var(--ink-600);line-height:1.8}
.spot-card-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--ink-600)}
.spot-card-foot strong{color:var(--brand-700);font-weight:700}

/* ---------- strip ---------- */
.strip{
  background:var(--grad-brand);border-radius:var(--radius-xl);color:#fff;
  padding:44px 46px;display:grid;grid-template-columns:repeat(3,1fr);gap:34px;
  position:relative;overflow:hidden;
  box-shadow:0 26px 56px -28px rgba(11,46,43,.55);
}
.strip::after{content:"";position:absolute;left:-90px;top:-120px;width:280px;height:280px;border-radius:50%;border:1px solid rgba(255,255,255,.14)}
.strip-item h3{font-size:19px;font-weight:800;letter-spacing:.01em}
.strip-item .strip-label{display:block;font-size:12.5px;letter-spacing:.16em;font-weight:700;color:var(--accent-400);margin-bottom:8px}
.strip-item p{font-size:14.5px;color:rgba(255,255,255,.78);margin-top:12px;line-height:1.85}
.strip-bar{height:5px;border-radius:999px;background:rgba(255,255,255,.2);overflow:hidden;margin-top:18px}
.strip-bar i{display:block;height:100%;border-radius:999px;background:var(--grad-accent)}

/* ---------- media rows ---------- */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.media-row + .media-row{margin-top:76px}
.media-row.reverse .media-img{order:2}
.media-img img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}
.media-body h2{font-size:clamp(23px,2.6vw,32px);font-weight:800;line-height:1.3;margin-top:14px}
.media-body > p{font-size:15.5px;color:var(--ink-600);line-height:1.9;margin-top:16px}
.media-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.media-list li{display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start}
.media-list li::before{
  content:"";width:10px;height:10px;margin-top:11px;border-radius:3px;background:var(--grad-accent);
}
.media-list strong{font-weight:700;font-size:15.5px}
.media-list span{display:block;font-size:14px;color:var(--ink-600);line-height:1.8;margin-top:2px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:44px}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;display:flex;flex-direction:column;gap:12px;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.step:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-lift)}
.step-num{font-size:13px;font-weight:800;letter-spacing:.16em;color:var(--accent-500)}
.step h3{font-size:17.5px;font-weight:700}
.step p{font-size:14px;color:var(--ink-600);line-height:1.85}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;margin-top:40px;max-width:960px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:var(--brand-300)}
.faq-item::before{content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:0 3px 3px 0;background:var(--grad-accent)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:18px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:22px 26px 22px 32px;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  border:1.5px solid var(--brand-300);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease);
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-500);color:#fff;border-color:var(--brand-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s var(--ease)}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{padding:0 32px 26px;font-size:15px;line-height:1.9;color:var(--ink-600)}

/* ---------- CTA band ---------- */
.cta-band{
  display:flex;justify-content:space-between;align-items:center;gap:36px;flex-wrap:wrap;
  border:1.5px solid var(--brand-700);border-radius:var(--radius-xl);
  padding:46px 48px;background:linear-gradient(180deg,#ffffff 0%,var(--sand-100) 100%);
  position:relative;overflow:hidden;
}
.cta-band::after{content:"";position:absolute;right:-80px;bottom:-120px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(79,184,148,.18),transparent 70%)}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.35}
.cta-band p{font-size:15px;color:var(--ink-600);margin-top:12px;max-width:560px;line-height:1.85}
.cta-band-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:var(--brand-900);color:rgba(255,255,255,.8);
  margin-top:96px;padding:64px 0 28px;
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-accent)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.6)}
.footer-desc{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin-top:18px;max-width:340px}
.footer-col h4{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--accent-400)}
.footer-col p{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:46px;padding-top:22px;
  font-size:13px;color:rgba(255,255,255,.55);
}
.to-top{color:rgba(255,255,255,.72);transition:color .2s var(--ease)}
.to-top:hover{color:var(--accent-400)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .section{padding:72px 0}
  .page-hero-inner{grid-template-columns:1fr;padding:38px 34px;gap:32px}
  .page-hero-media img{transform:none}
  .media-chip{left:14px}
  .spots{grid-template-columns:repeat(2,1fr)}
  .spot-hero{grid-column:span 2;grid-template-columns:1fr}
  .spot-hero-media img{min-height:220px}
  .strip{grid-template-columns:1fr;gap:28px;padding:36px 32px}
  .media-row{grid-template-columns:1fr;gap:34px}
  .media-row.reverse .media-img{order:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-bar{grid-template-columns:44px 1fr 44px;height:60px;gap:10px}
  .nav-left,.nav-right .nav-link,.nav-right .btn-primary{display:none}
  .nav-right{grid-column:3;justify-content:flex-end}
  .brand{grid-column:2}
  .brand-mark{width:36px;height:36px;flex-basis:36px;border-radius:12px}
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:10px}
  .nav-toggle{display:flex}
  .site-header.menu-open .mobile-drawer{
    display:flex;flex-direction:column;gap:2px;
    padding:14px 24px 22px;background:rgba(250,248,243,.99);
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-card);
  }
  .drawer-link{
    display:flex;align-items:center;min-height:48px;padding:0 4px;
    font-size:15.5px;color:var(--ink-600);border-bottom:1px solid var(--sand-100);
  }
  .drawer-link.active{color:var(--brand-900);font-weight:700}
  .drawer-cta{margin-top:16px;width:100%}
}
@media (max-width:640px){
  .container-x{padding:0 16px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  body{font-size:16px}
  .page-hero{padding-top:18px}
  .page-hero-inner{padding:30px 22px;border-radius:24px;min-height:0}
  .page-hero .lede{font-size:15.5px}
  .hero-actions{gap:12px}
  .btn-primary,.btn-outline{padding:11px 20px;font-size:14.5px}
  .spots{grid-template-columns:1fr}
  .spot-hero{grid-column:span 1}
  .spot-hero-body{padding:26px 22px}
  .spot-card-media img{aspect-ratio:16/10}
  .tl-item{grid-template-columns:1fr;gap:14px;padding:22px 20px}
  .tl-index{flex-direction:row;align-items:center;gap:14px}
  .tl-num{font-size:28px}
  .steps{grid-template-columns:1fr}
  .strip{padding:28px 22px}
  .media-row + .media-row{margin-top:52px}
  .cta-band{padding:32px 24px;flex-direction:column;align-items:flex-start;gap:24px}
  .cta-band::after{display:none}
  .faq-q{padding:18px 18px 18px 24px;font-size:15.5px}
  .faq-a p{padding:0 24px 22px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .site-footer{padding:48px 0 24px;margin-top:64px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B2E2B;
  --brand-700:#0F4A40;
  --brand-500:#17795F;
  --brand-300:#4FB894;
  --accent-500:#FF6B2C;
  --accent-400:#FFB03A;
  --sand-50:#FAF8F3;
  --sand-100:#F2EEE6;
  --line:#E3DED2;
  --ink-900:#12201E;
  --ink-600:#4B5F5B;
  --grad-brand:linear-gradient(135deg,#0B2E2B 0%,#17795F 62%,#4FB894 100%);
  --grad-accent:linear-gradient(120deg,#FF6B2C 0%,#FFB03A 100%);
  --shadow-card:0 10px 30px -12px rgba(11,46,43,.18);
  --shadow-hover:0 18px 40px -16px rgba(11,46,43,.28);
  --radius-lg:32px;
  --radius-md:24px;
  --radius-sm:16px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;scroll-padding-top:96px}

.page-body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background-color:var(--sand-50);
  color:var(--ink-900);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em}
p{margin:0}
figure{margin:0}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

:focus-visible{outline:2px solid var(--brand-300);outline-offset:2px;border-radius:6px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(250,248,243,.9);
  border-bottom:1px solid transparent;
  transition:background .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{
  background:rgba(250,248,243,.94);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-card);
}
.site-header.is-open{border-bottom-color:var(--line)}

.nav-bar{
  height:72px;
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;
}
.nav-side{display:flex;align-items:center;gap:26px;flex:1 1 0}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end}

.nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--ink-600);
  padding:6px 2px;
  white-space:nowrap;
  transition:color .2s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--grad-accent);
  transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease-out;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-900)}
.nav-link.active::after{transform:scaleX(1)}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  background:var(--grad-brand);
  display:grid;place-items:center;
  box-shadow:0 8px 20px -10px rgba(11,46,43,.5);
}
.brand-text{display:block;line-height:1.25}
.brand-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--brand-900)}
.brand-text em{display:block;font-style:normal;font-size:11px;letter-spacing:.06em;color:var(--ink-600);margin-top:2px}

.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:14px;
  border:1px solid var(--line);
  background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-700);transition:transform .22s ease-out,opacity .22s ease-out}
.nav-toggle:hover{border-color:var(--brand-300);box-shadow:var(--shadow-card)}
.site-header.is-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.is-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.is-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{
  display:none;
  position:absolute;left:0;right:0;top:100%;
  background:var(--sand-50);
  border-top:1px solid var(--line);
  box-shadow:var(--shadow-hover);
  padding:10px 24px 24px;
  flex-direction:column;
}
.mobile-menu.open{display:flex}
.mm-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 2px;
  font-size:16px;font-weight:600;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.mm-link::after{content:"›";color:var(--brand-300);font-size:20px;line-height:1}
.mm-link:hover{color:var(--brand-700)}
.mm-link.active{color:var(--brand-700)}
.mm-cta{margin-top:20px;justify-content:center;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;
  padding:13px 27px;
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1.5px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,filter .2s ease-out,background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  will-change:transform;
}
.btn-primary{background-image:var(--grad-accent);color:#fff;box-shadow:0 12px 26px -14px rgba(255,107,44,.85)}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(255,107,44,.9)}
.btn-outline{border-color:var(--brand-700);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-card)}
.btn-ghost{color:var(--brand-700);padding:13px 8px}
.btn-ghost:hover{color:var(--accent-500)}
.btn-sm{padding:10px 21px;font-size:14px}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none}

/* ---------- 紧凑页头 ---------- */
.page-head{
  position:relative;
  padding:40px 0 44px;
  background-color:var(--sand-100);
  background-image:linear-gradient(180deg,rgba(11,46,43,.92),rgba(15,74,64,.86)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(79,184,148,.42),transparent 68%);
  pointer-events:none;
}
.page-head .container-x{position:relative;z-index:1}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12.5px;letter-spacing:.06em;color:rgba(255,255,255,.72);
  margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--accent-400)}
.breadcrumb span.sep{color:rgba(255,255,255,.4)}
.page-title{
  font-size:clamp(30px,4.4vw,48px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
}
.page-lead{
  margin-top:16px;
  max-width:720px;
  font-size:16px;line-height:1.9;
  color:rgba(255,255,255,.86);
}
.head-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.head-tag{
  font-size:12.5px;font-weight:600;letter-spacing:.05em;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.34);
  background:rgba(255,255,255,.1);
  color:#fff;
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.head-tag:hover{transform:scale(1.02);background:rgba(255,255,255,.18)}

/* ---------- 主体布局 ---------- */
.cat-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:56px;
  padding-top:68px;
  padding-bottom:96px;
}
.side-nav{position:sticky;top:96px;align-self:start}
.side-title{
  font-size:13px;letter-spacing:.14em;font-weight:700;color:var(--ink-600);
  display:flex;align-items:center;gap:10px;margin-bottom:18px;
}
.side-title::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--grad-accent);
}
.side-nav ul{border-left:1px solid var(--line)}
.side-nav a{
  display:block;
  padding:11px 0 11px 16px;
  margin-left:-1px;
  border-left:2px solid transparent;
  font-size:14.5px;font-weight:600;color:var(--ink-600);
  transition:color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;
}
.side-nav a:hover,.side-nav a.is-active{
  color:var(--brand-700);
  border-left-color:var(--brand-500);
  background:linear-gradient(90deg,rgba(79,184,148,.14),rgba(79,184,148,0));
}
.side-note{
  margin-top:28px;padding:20px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;box-shadow:var(--shadow-card);
}
.side-note strong{display:block;font-size:15px;margin-bottom:8px}
.side-note p{font-size:13.5px;line-height:1.8;color:var(--ink-600)}

/* ---------- 板块通用 ---------- */
.block{padding-top:64px}
.block:first-child{padding-top:0}
.block-head{margin-bottom:28px}
.block-kicker{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;font-weight:700;letter-spacing:.16em;color:var(--brand-500);
  text-transform:uppercase;margin-bottom:12px;
}
.block-kicker::before{content:"";width:20px;height:3px;border-radius:2px;background:var(--grad-accent)}
.block-title{font-size:clamp(23px,2.6vw,32px);line-height:1.3;color:var(--brand-900)}
.block-sub{margin-top:12px;font-size:15.5px;line-height:1.9;color:var(--ink-600);max-width:760px}

/* 概览 */
.overview-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:32px 34px;
  box-shadow:var(--shadow-card);
}
.overview-card p{color:var(--ink-600);font-size:16px;line-height:1.95}
.overview-card p + p{margin-top:16px}
.overview-card strong{color:var(--brand-900);font-weight:700}

/* 时间线 */
.timeline{border-top:1px solid var(--line)}
.tl-item{
  display:grid;grid-template-columns:92px minmax(0,1fr);gap:26px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .22s ease-out;
}
.tl-item:hover{background:rgba(255,255,255,.7)}
.tl-num{
  font-size:46px;font-weight:800;line-height:1;
  font-variant-numeric:tabular-nums;
  background-image:var(--grad-brand);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;-webkit-text-fill-color:transparent;
}
.tl-body h3{font-size:21px;color:var(--brand-900);margin-bottom:10px}
.tl-body p{font-size:15.5px;line-height:1.92;color:var(--ink-600)}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  font-size:12.5px;font-weight:600;
  padding:5px 13px;border-radius:999px;
  border:1px solid var(--brand-300);
  color:var(--brand-700);
  background:rgba(79,184,148,.08);
  transition:transform .2s ease-out,background-color .2s ease-out;
}
.tag:hover{transform:scale(1.02);background:rgba(79,184,148,.18)}

/* 更新排期 */
.cal-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px}
.cal-cell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 14px;min-height:118px;
  display:flex;flex-direction:column;gap:8px;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.cal-cell:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-card)}
.cal-cell strong{font-size:14.5px;color:var(--brand-900)}
.cal-cell span{font-size:13px;line-height:1.75;color:var(--ink-600)}
.cal-cell.is-today{background-image:var(--grad-brand);border-color:transparent}
.cal-cell.is-today strong,.cal-cell.is-today span{color:#fff}

/* 更新节奏条 */
.meter-list{border-top:1px solid var(--line);margin-top:8px}
.meter-row{
  display:grid;grid-template-columns:150px minmax(0,1fr) 110px;
  align-items:center;gap:20px;
  padding:16px 0;border-bottom:1px dashed var(--line);
}
.meter-name{font-size:15px;font-weight:700;color:var(--brand-900)}
.meter-bar{height:8px;border-radius:999px;background:var(--sand-100);overflow:hidden}
.meter-bar i{display:block;height:100%;border-radius:999px;background-image:var(--grad-accent)}
.meter-freq{font-size:13.5px;color:var(--ink-600);text-align:right;font-variant-numeric:tabular-nums}

/* 延伸阅读 */
.read-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.read-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  overflow:hidden;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.read-card:hover{transform:translateY(-4px);border-color:var(--brand-300);box-shadow:var(--shadow-hover)}
.read-thumb{aspect-ratio:16/9;overflow:hidden;background-image:var(--grad-brand)}
.read-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.read-card:hover .read-thumb img{transform:scale(1.04)}
.read-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.read-body h3{font-size:17px;line-height:1.5;color:var(--brand-900)}
.read-body p{font-size:14px;line-height:1.8;color:var(--ink-600);flex:1}
.read-more{font-size:13.5px;font-weight:700;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.read-card:hover .read-more{color:var(--accent-500)}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  overflow:hidden;
  transition:border-color .22s ease-out,box-shadow .22s ease-out;
}
.faq-item:hover{border-color:var(--brand-300);box-shadow:var(--shadow-card)}
.faq-q{
  position:relative;width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px 20px 28px;
  text-align:left;font-size:16.5px;font-weight:600;color:var(--brand-900);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:0 3px 3px 0;
  background:var(--grad-brand);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--brand-300);color:var(--brand-700);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:transform .24s ease-out,background-color .24s ease-out,color .24s ease-out;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a-inner{padding:0 28px 22px 28px;font-size:15px;line-height:1.9;color:var(--ink-600)}

/* CTA 描边条 */
.cta-strip{
  margin-top:72px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:38px 40px;
  border:1.5px solid var(--brand-300);
  border-radius:28px;
  background:linear-gradient(120deg,rgba(79,184,148,.1),rgba(255,176,58,.1));
}
.cta-strip h2{font-size:clamp(21px,2.2vw,27px);color:var(--brand-900);line-height:1.35}
.cta-strip p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-600);max-width:560px}
.cta-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  background-color:var(--brand-900);
  color:#fff;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;background-image:var(--grad-accent);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
  padding:66px 0 42px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.62)}
.footer-desc{
  margin-top:18px;max-width:330px;
  font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.7);
}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:18px;font-weight:700}
.footer-col ul li a{
  display:inline-block;padding:5px 0;
  font-size:14.5px;color:rgba(255,255,255,.72);
  transition:color .2s ease-out,transform .2s ease-out;
}
.footer-col ul li a:hover{color:var(--accent-400);transform:translateX(2px)}
.footer-col p{font-size:14.5px;line-height:1.9;color:rgba(255,255,255,.72);padding:4px 0}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 30px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.to-top{color:rgba(255,255,255,.75);font-weight:600;transition:color .2s ease-out}
.to-top:hover{color:var(--accent-400)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .cat-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding-top:56px;padding-bottom:76px}
  .side-nav{position:static}
  .side-nav ul{display:flex;flex-wrap:wrap;gap:10px;border-left:0}
  .side-nav a{
    margin-left:0;padding:8px 16px;border:1px solid var(--line);border-radius:999px;background:#fff;
  }
  .side-nav a:hover,.side-nav a.is-active{border-color:var(--brand-300);background:rgba(79,184,148,.12)}
  .side-note{display:none}
  .cal-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;padding-top:56px}
}

@media (max-width:900px){
  .nav-left{display:none}
  .nav-right .nav-link{display:none}
  .nav-toggle{display:inline-flex}
  .nav-bar{height:60px}
  .brand-text em{display:none}
  .brand-mark{width:36px;height:36px;border-radius:12px}
  .brand-text strong{font-size:16px}
  .nav-side{flex:0 0 auto}
  .nav-right{gap:12px}
  .read-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:32px 28px}
  .cta-actions{width:100%;flex-wrap:wrap}
}

@media (max-width:767px){
  .page-head{padding:30px 0 36px}
  .page-lead{font-size:15px}
  .cal-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:12px;padding:26px 0}
  .tl-num{font-size:34px}
  .overview-card{padding:24px 22px}
  .meter-row{grid-template-columns:minmax(0,1fr);gap:8px;padding:14px 0}
  .meter-freq{text-align:left}
  .read-grid{grid-template-columns:minmax(0,1fr)}
  .container-x{padding-left:18px;padding-right:18px}
}

@media (max-width:560px){
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
  .mm-cta{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}