/* roulang page: index */
:root{
  --ink:#14201C;
  --ink-2:#4A554F;
  --ink-3:#7B857F;
  --brand:#123B33;
  --brand-deep:#0B2620;
  --accent:#E8622C;
  --sage:#7E9A8F;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-alt:#E9E4D8;
  --line:#D8D2C4;
  --light:#F2EFE6;
  --radius:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(20,32,28,.05);
  --shadow-2:0 8px 24px -12px rgba(20,32,28,.18);
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"Inter","DIN Alternate","SFMono-Regular",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink)}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0}
li{list-style:none}
:focus-visible{outline:2px solid rgba(232,98,44,.6);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}
.section{padding:96px 0}
@media (max-width:1023px){.section{padding:72px 0}}
@media (max-width:639px){.section{padding:56px 0}}
.section--surface{background:var(--surface)}
.section--alt{background:var(--surface-alt)}

/* ===== header / nav ===== */
.site-header{position:sticky;top:0;z-index:80;transition:box-shadow .2s ease,background-color .2s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.nav-split{display:flex;min-height:68px;height:68px}
.nav-left{
  flex:0 0 52%;
  display:flex;align-items:center;gap:clamp(16px,2.2vw,34px);
  padding:0 24px 0 clamp(20px,4vw,60px);
  background:var(--bg);
  transition:background-color .2s ease;
}
.nav-right{
  flex:1 1 auto;
  display:flex;align-items:center;justify-content:flex-end;gap:14px;
  padding:0 clamp(20px,4vw,60px) 0 24px;
  background:var(--brand);
  color:var(--light);
  transition:background-color .2s ease,color .2s ease;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:900;font-size:19px;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;transition:color .2s ease}
.brand-mark{position:relative;width:22px;height:22px;border-radius:6px;background:var(--brand);flex:none}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:2px;background:var(--accent)}
.nav-links{display:flex;align-items:center;gap:clamp(14px,2vw,28px);min-width:0}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink);white-space:nowrap;transition:color .2s ease}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .24s ease}
.nav-links a:hover::after,.nav-links a.is-active::after{width:100%}
.nav-links a:hover{color:var(--brand)}
.site-header.is-scrolled .nav-left{background:var(--brand)}
.site-header.is-scrolled .brand,
.site-header.is-scrolled .nav-links a{color:var(--light)}
.site-header.is-scrolled .nav-links a:hover{color:#fff}
.icon-btn{
  width:40px;height:40px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(242,239,230,.28);color:inherit;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:rgba(242,239,230,.12);border-color:rgba(242,239,230,.5)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.hamburger{display:none;width:42px;height:42px;border-radius:12px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid currentColor;opacity:.9}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;font-family:var(--sans);letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:active{transform:scale(.99)}
.btn-primary{background:var(--accent);color:#FFF8F4;border-color:var(--accent)}
.btn-primary:hover{background:#D2531F;border-color:#D2531F;transform:scale(1.02)}
.btn-dark{background:var(--ink);color:var(--light);border-color:var(--ink)}
.btn-dark:hover{background:var(--brand);border-color:var(--brand);transform:scale(1.02)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:var(--light)}
.btn-ghost-light{border-color:rgba(242,239,230,.4);color:var(--light);background:transparent}
.btn-ghost-light:hover{background:rgba(242,239,230,.12);border-color:rgba(242,239,230,.7)}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--brand);position:relative}
.link-arrow::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--accent);transition:width .24s ease}
.link-arrow:hover::after{width:calc(100% - 18px)}
.link-arrow:hover{color:var(--accent)}

/* ===== badges ===== */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.04em;line-height:1.6}
.badge-fill{background:var(--sage);color:#0F2A23}
.badge-line{border:1px solid var(--line);color:var(--ink-2)}
.badge-accent{background:rgba(232,98,44,.12);color:#B94A1C;border:1px solid rgba(232,98,44,.3)}
.badge-light{background:rgba(242,239,230,.14);color:var(--light);border:1px solid rgba(242,239,230,.24)}

/* ===== hero ===== */
.hero{position:relative;background:var(--bg)}
.hero-inner{display:flex;align-items:stretch;min-height:640px}
.hero-copy{
  flex:0 0 52%;
  display:flex;flex-direction:column;justify-content:center;
  padding:118px 56px 84px clamp(20px,4vw,60px);
}
.hero-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:22px}
.hero-meta i{width:5px;height:5px;border-radius:50%;background:var(--sage);display:inline-block}
.hero h1{font-size:clamp(2.4rem,4.4vw,4rem);line-height:1.08;font-weight:900}
.hero-sub{margin-top:22px;font-size:clamp(1rem,1.3vw,1.15rem);line-height:1.8;color:var(--ink-2);max-width:33em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:52px;padding-top:28px;border-top:1px solid var(--line);max-width:520px}
.hero-stats dt{font-family:var(--mono);font-size:1.75rem;font-weight:700;letter-spacing:-.02em;color:var(--brand)}
.hero-stats dd{font-size:13px;color:var(--ink-3);margin-top:2px}
.hero-visual{flex:1 1 auto;position:relative;overflow:hidden;background:var(--brand-deep);min-height:420px}
.hero-visual img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.hero-visual::before{content:"";position:absolute;inset:0;background:rgba(11,38,32,.55);z-index:1}
.hero-float{
  position:absolute;left:28px;bottom:28px;z-index:2;
  background:var(--surface);border-radius:var(--radius);padding:16px 20px;box-shadow:var(--shadow-2);max-width:250px;
}
.hero-float strong{display:block;font-family:var(--mono);font-size:22px;color:var(--brand);letter-spacing:-.02em}
.hero-float span{display:block;font-size:13px;color:var(--ink-2);margin-top:4px;line-height:1.6}

/* ===== section heads ===== */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.sec-head .kicker{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--sage);margin-bottom:12px}
.sec-head h2{font-size:clamp(1.8rem,3vw,2.5rem);line-height:1.2}
.sec-head .desc{margin-top:12px;font-size:15.5px;color:var(--ink-2);max-width:52em}

/* ===== quick guide cards ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media (max-width:1023px){.grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.grid-3,.grid-4{grid-template-columns:1fr}}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card h3{font-size:1.3rem;margin-bottom:12px}
.card p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.card .num{font-family:var(--mono);font-size:13px;color:var(--sage);letter-spacing:.1em;display:block;margin-bottom:14px}

/* ===== timeline ===== */
.timeline{position:relative;padding-left:0}
.timeline::before{content:"";position:absolute;left:11px;top:10px;bottom:10px;width:2px;background:var(--line)}
.tl-item{position:relative;padding-left:46px;margin-bottom:20px}
.tl-item:last-child{margin-bottom:0}
.tl-dot{position:absolute;left:4px;top:26px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--sage);box-sizing:border-box}
.tl-item.is-current .tl-dot{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 6px rgba(232,98,44,.16);animation:breathe 2.6s ease-in-out infinite}
@keyframes breathe{0%,100%{box-shadow:0 0 0 5px rgba(232,98,44,.16)}50%{box-shadow:0 0 0 10px rgba(232,98,44,.06)}}
.tl-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-1);transition:box-shadow .2s ease,border-color .2s ease}
.tl-card:hover{box-shadow:var(--shadow-2);border-color:var(--sage)}
.tl-time{font-family:var(--mono);font-size:13px;letter-spacing:.08em;color:var(--accent);margin-bottom:8px}
.tl-card h3{font-size:1.2rem;margin-bottom:8px}
.tl-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}

/* ===== spot cards ===== */
.spot-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.spot-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--accent)}
.spot-card__media{aspect-ratio:1/1;background:var(--surface-alt);overflow:hidden}
.spot-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.spot-card:hover .spot-card__media img{transform:scale(1.03)}
.spot-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.spot-card__body h3{font-size:1.15rem}
.spot-card__body p{font-size:14px;color:var(--ink-2);line-height:1.7;flex:1}

/* ===== plan cards ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
@media (max-width:1023px){.plan-grid{grid-template-columns:1fr}}
.plan-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px 28px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.plan-card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;border-radius:var(--radius) var(--radius) 0 0;background:var(--accent);opacity:0;transition:opacity .25s ease}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.plan-card:hover::before{opacity:1}
.plan-card.is-featured{background:var(--brand);color:var(--light);border-color:var(--brand)}
.plan-card.is-featured::before{opacity:1}
.plan-card.is-featured h3,.plan-card.is-featured .plan-num{color:var(--light)}
.plan-flag{position:absolute;right:20px;top:20px;background:var(--accent);color:#FFF8F4;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}
.plan-card h3{font-size:1.3rem;margin-bottom:16px}
.plan-price{display:flex;align-items:baseline;gap:8px}
.plan-num{font-family:var(--mono);font-size:2.7rem;font-weight:700;letter-spacing:-.03em;line-height:1;color:var(--brand)}
.plan-unit{font-size:13px;color:var(--ink-3)}
.plan-card.is-featured .plan-unit{color:rgba(242,239,230,.72)}
.plan-list{display:flex;flex-direction:column;gap:11px;margin:22px 0 24px}
.plan-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;line-height:1.65;color:var(--ink-2)}
.plan-card.is-featured .plan-list li{color:rgba(242,239,230,.86)}
.plan-list .ic{flex:none;width:16px;height:16px;border-radius:50%;margin-top:5px;position:relative}
.ic-yes{background:var(--sage)}
.ic-yes::after{content:"";position:absolute;left:5px;top:2px;width:4px;height:8px;border:solid #0F2A23;border-width:0 2px 2px 0;transform:rotate(45deg)}
.ic-no{border:1px solid var(--line);background:transparent}
.plan-card.is-featured .ic-no{border-color:rgba(242,239,230,.4)}
.plan-progress{height:6px;border-radius:999px;background:var(--surface-alt);overflow:hidden;margin-bottom:24px}
.plan-progress span{display:block;height:100%;border-radius:999px;background:var(--accent)}
.plan-card.is-featured .plan-progress{background:rgba(242,239,230,.18)}
.plan-card .btn{margin-top:auto}

/* ===== cta band ===== */
.cta-band{position:relative;background:var(--brand-deep);color:var(--light);overflow:hidden;margin-top:0}
.cta-band__bg{position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.webp);background-size:cover;background-position:center;opacity:.26}
.cta-band__inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:48px;padding:76px 0;flex-wrap:wrap}
.cta-band h2{color:var(--light);font-size:clamp(1.7rem,2.6vw,2.3rem);max-width:20em}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(242,239,230,.8);max-width:38em;line-height:1.8}
.cta-band__side{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cta-contacts{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:rgba(242,239,230,.82)}
.cta-contacts span{display:inline-flex;align-items:center;gap:8px}
.cta-contacts b{font-family:var(--mono);font-weight:600;color:var(--light)}
.cta-note{position:relative;padding-bottom:20px;font-size:12.5px;color:rgba(242,239,230,.6);letter-spacing:.02em}

/* ===== posts (cms) ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:1023px){.post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.post-grid{grid-template-columns:1fr}}
.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .25s ease,box-shadow .25s ease}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.post-card__media{aspect-ratio:16/9;background:var(--surface-alt);overflow:hidden}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-card__media img{transform:scale(1.03)}
.post-card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card__body h3{font-size:1.05rem;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.post-card:hover h3{color:var(--accent)}
.post-card__body p{font-size:14px;color:var(--ink-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-family:var(--mono);font-size:12.5px;color:var(--ink-3)}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center;padding:64px 24px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius)}
.empty-state svg{width:56px;height:56px;stroke:var(--sage);fill:none;stroke-width:1.5}
.empty-state p{font-size:15px;color:var(--ink-2)}

/* ===== stats strip ===== */
.stats-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;padding:44px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
@media (max-width:767px){.stats-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 20px}}
.stat b{display:block;font-family:var(--mono);font-size:clamp(1.6rem,2.6vw,2.2rem);font-weight:700;letter-spacing:-.02em;color:var(--brand)}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--ink-3);line-height:1.6}

/* ===== faq ===== */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 4px;text-align:left;font-size:17px;font-weight:600;color:var(--ink);font-family:var(--sans);transition:color .2s ease}
.faq-q:hover{color:var(--brand)}
.faq-plus{flex:none;width:20px;height:20px;position:relative;transition:transform .25s ease}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--accent);border-radius:2px}
.faq-plus::before{left:0;top:9px;width:20px;height:2px}
.faq-plus::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 4px 24px;font-size:15.5px;line-height:1.85;color:var(--ink-2);max-width:62em}

/* ===== footer ===== */
.site-footer{background:var(--brand-deep);color:#E7E3D8;padding-top:76px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:44px}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:40px 32px}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:36px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:900;font-size:19px;color:var(--light)}
.footer-brand .brand-mark{background:rgba(242,239,230,.9)}
.footer-brand .brand-mark::after{background:var(--accent)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(231,227,216,.72);max-width:30em}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{width:38px;height:38px;border-radius:999px;border:1px solid rgba(245,242,234,.2);display:inline-flex;align-items:center;justify-content:center;transition:border-color .2s ease,background-color .2s ease}
.footer-social a:hover{border-color:var(--accent);background:rgba(232,98,44,.14)}
.footer-social svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6}
.footer-title{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:rgba(231,227,216,.55);font-family:var(--mono);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(231,227,216,.82);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-form{display:flex;gap:10px;margin-top:16px}
.footer-form input{
  flex:1;min-width:0;height:48px;border-radius:var(--radius-sm);background:rgba(245,242,234,.06);
  border:1px solid rgba(245,242,234,.2);color:var(--light);padding:0 16px;font-size:14.5px;
}
.footer-form input::placeholder{color:rgba(231,227,216,.45)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.18)}
.footer-contact{margin-top:20px;font-size:14px;color:rgba(231,227,216,.78);display:flex;flex-direction:column;gap:8px}
.footer-contact b{font-family:var(--mono);color:var(--light);font-weight:600}
.footer-bottom{
  margin-top:60px;border-top:1px solid rgba(245,242,234,.14);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(231,227,216,.6);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom a:hover{color:var(--accent)}

/* ===== search overlay / drawer ===== */
.search-overlay{position:fixed;inset:0;z-index:95;background:rgba(11,38,32,.96);display:flex;align-items:flex-start;justify-content:center;padding:140px 24px 24px}
.search-overlay[hidden]{display:none}
.search-panel{width:100%;max-width:760px}
.search-panel h2{color:var(--light);font-size:1.4rem;margin-bottom:20px}
.search-form{display:flex;gap:12px}
.search-form input{
  flex:1;min-width:0;height:52px;border-radius:var(--radius-sm);background:rgba(245,242,234,.06);
  border:1px solid rgba(245,242,234,.22);color:var(--light);padding:0 18px;font-size:15.5px;
}
.search-form input::placeholder{color:rgba(231,227,216,.45)}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.35)}
.search-close{position:absolute;right:28px;top:28px;width:44px;height:44px;border-radius:999px;border:1px solid rgba(245,242,234,.24);color:var(--light);font-size:22px;line-height:1;display:inline-flex;align-items:center;justify-content:center;transition:background-color .2s ease}
.search-close:hover{background:rgba(245,242,234,.12)}
.drawer{position:fixed;inset:0;z-index:100;display:flex;justify-content:flex-end;background:rgba(11,38,32,.5)}
.drawer[hidden]{display:none}
.drawer__panel{width:min(86vw,360px);height:100%;background:var(--brand-deep);color:var(--light);padding:26px 24px;display:flex;flex-direction:column;gap:26px;overflow-y:auto}
.drawer__top{display:flex;align-items:center;justify-content:space-between}
.drawer__close{width:40px;height:40px;border-radius:999px;border:1px solid rgba(245,242,234,.22);display:inline-flex;align-items:center;justify-content:center;font-size:20px;color:var(--light)}
.drawer nav{display:flex;flex-direction:column;gap:4px}
.drawer nav a{padding:14px 12px;border-radius:var(--radius-sm);font-size:15.5px;color:rgba(231,227,216,.86);transition:background-color .2s ease,color .2s ease}
.drawer nav a:hover,.drawer nav a.is-active{background:rgba(245,242,234,.08);color:var(--light)}
.drawer .btn{margin-top:auto}

@media (max-width:1023px){
  .site-header,.site-header .nav-split,.site-header .nav-left,.site-header .nav-right{background:transparent}
  .site-header{background:var(--bg)}
  .site-header.is-scrolled{background:var(--brand)}
  .site-header.is-scrolled .brand{color:var(--light)}
  .site-header.is-scrolled .nav-right{color:var(--light)}
  .nav-left{flex:1 1 auto;padding:0 8px 0 20px}
  .nav-links{display:none}
  .hamburger{display:inline-flex}
  .nav-right{flex:0 0 auto;padding:0 20px 0 8px;background:transparent;color:var(--ink)}
  .site-header:not(.is-scrolled) .nav-right .btn-primary{border-color:var(--accent)}
  .icon-btn{border-color:rgba(20,32,28,.2)}
  .site-header.is-scrolled .icon-btn{border-color:rgba(242,239,230,.3)}
  .hero-inner{flex-direction:column;min-height:0}
  .hero-copy{flex:1 1 auto;padding:104px 24px 56px}
  .hero-visual{flex:0 0 auto;height:320px;min-height:0}
  .hero-visual img{position:relative;height:100%}
  .hero-float{left:20px;bottom:20px}
  .cta-band__inner{padding:64px 0;gap:32px}
  .cta-band__side{width:100%}
  .cta-band__side .btn{width:100%}
}
@media (max-width:639px){
  .hero-copy{padding:96px 20px 48px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:20px}
  .hero-actions .btn{width:100%}
  .search-form{flex-direction:column}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .card:hover,.post-card:hover,.spot-card:hover,.plan-card:hover,.btn:hover{transform:none!important}
  .spot-card:hover .spot-card__media img,.post-card:hover .post-card__media img{transform:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#14201C;
  --brand:#123B33;
  --brand-deep:#0B2620;
  --accent:#E8622C;
  --sage:#7E9A8F;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-alt:#E9E4D8;
  --line:#D8D2C4;
  --ink-2:#4A554F;
  --ink-3:#7B857F;
  --shadow-1:0 1px 2px rgba(20,32,28,.05);
  --shadow-2:0 8px 24px -12px rgba(20,32,28,.18);
  --radius:14px;
  --radius-sm:10px;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font:inherit}
h1,h2,h3,h4{font-family:var(--font-serif);letter-spacing:-.02em;margin:0;line-height:1.22;font-weight:800}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:768px){.container{padding:0 32px}}
@media (min-width:1280px){.container{max-width:1320px;padding:0 48px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--brand);
  color:#F2EFE6;
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-2);background:var(--brand-deep)}
.nav-inner{display:flex;align-items:center;gap:22px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:none;font-family:var(--font-serif);font-weight:800;font-size:19px;color:#F7F4EC;letter-spacing:.01em}
.brand-mark{position:relative;flex:none;width:22px;height:22px;border-radius:7px;background:var(--accent);box-shadow:0 0 0 4px rgba(232,98,44,.16)}
.brand-mark::after{content:"";position:absolute;inset:6px;border-radius:3px;background:#F5F2EA}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:10px}
.nav-links a{position:relative;display:inline-block;padding:6px 0;font-size:15px;color:rgba(245,242,234,.76);transition:color .2s ease}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:#fff;font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;border:1px solid rgba(245,242,234,.22);color:#F2EFE6;transition:background .2s ease,border-color .2s ease}
.icon-btn:hover{background:rgba(245,242,234,.12);border-color:rgba(245,242,234,.4)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:999px;border:1px solid rgba(245,242,234,.22);padding:0 11px}
.hamburger span{display:block;height:2px;background:#F2EFE6;border-radius:2px}
.search-layer{position:absolute;left:0;right:0;top:100%;background:var(--brand-deep);border-top:1px solid rgba(245,242,234,.14);padding:20px 0;opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .2s ease,transform .2s ease,visibility .2s}
.search-layer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-form{display:flex;gap:12px;flex-wrap:wrap}
.search-form input{flex:1 1 240px;height:48px;padding:0 16px;border-radius:var(--radius-sm);border:1px solid rgba(245,242,234,.28);background:rgba(245,242,234,.06);color:#F5F2EA}
.search-form input::placeholder{color:rgba(245,242,234,.5)}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.35)}
.drawer-mask{position:fixed;inset:0;z-index:80;background:rgba(11,38,32,.55);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;z-index:90;width:min(320px,86vw);height:100%;padding:24px;background:var(--brand-deep);color:#F2EFE6;overflow-y:auto;transform:translateX(100%);transition:transform .28s ease}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.drawer-links{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.drawer-links a{padding:13px 14px;border-radius:var(--radius-sm);font-size:16px;color:rgba(245,242,234,.82);transition:background .2s ease,color .2s ease}
.drawer-links a:hover,.drawer-links a.is-active{background:rgba(245,242,234,.08);color:#fff}
.drawer-foot{border-top:1px solid rgba(245,242,234,.16);padding-top:20px;font-size:13px;color:rgba(245,242,234,.62);display:flex;flex-direction:column;gap:8px}

/* ---------- 按钮 / 标签 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:600;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:#CE5019;transform:scale(1.02)}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-outline:hover{background:var(--ink);color:#F5F2EA}
.btn-ghost{border-color:rgba(245,242,234,.4);color:#F5F2EA;background:transparent}
.btn-ghost:hover{background:rgba(245,242,234,.14)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.06em;background:var(--surface-alt);color:var(--ink-2)}
.badge-fill{background:var(--sage);color:#0F2A24}
.badge-outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);border-bottom:2px solid rgba(18,59,51,.22);padding-bottom:2px;transition:color .2s ease,border-color .2s ease}
.text-link:hover{color:var(--accent);border-color:var(--accent)}
.text-link::after{content:"→";transition:transform .2s ease}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- 首屏 ---------- */
.page-hero{background:linear-gradient(180deg,#FFFDF7 0%,var(--bg) 100%);border-bottom:1px solid var(--line);padding:56px 0 52px}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-num);font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:18px}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{font-size:clamp(2.2rem,4.4vw,3.4rem);line-height:1.1;margin-bottom:20px}
.page-hero .lead{font-size:16.5px;line-height:1.9;color:var(--ink-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta li{display:flex;flex-direction:column;gap:2px}
.hero-meta b{font-family:var(--font-num);font-size:20px;font-weight:700;letter-spacing:-.01em}
.hero-meta span{font-size:13px;color:var(--ink-3)}
.hero-media{overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-2)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .6s ease}
.hero-media:hover img{transform:scale(1.03)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.7rem,2.7vw,2.3rem)}
.section-head p{margin-top:10px;max-width:660px;font-size:15.5px;color:var(--ink-2)}
.kicker{display:block;font-family:var(--font-num);font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--sage);margin-bottom:10px}

/* ---------- 图文交错 ---------- */
.zigzag{display:flex;flex-direction:column;gap:48px}
.zig-item{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.zig-item:nth-child(even) .zig-media{order:2}
.zig-media{overflow:hidden;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface-alt);box-shadow:var(--shadow-1)}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .55s ease}
.zig-item:hover .zig-media img{transform:scale(1.03)}
.zig-body h3{font-size:clamp(1.3rem,1.9vw,1.6rem);margin:14px 0 14px}
.zig-body p{font-size:16px;line-height:1.9;color:var(--ink-2)}
.zig-body p + p{margin-top:12px}
.zig-body .text-link{margin-top:20px}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.card::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .24s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:1.25rem;margin:14px 0 10px}
.card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.card-num{font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--sage)}

/* ---------- 场景列表 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px 40px}
.scene-item{display:flex;gap:16px;padding:22px 0;border-bottom:1px solid var(--line)}
.scene-item:last-child,.scene-item:nth-last-child(2){border-bottom:1px solid var(--line)}
.scene-mark{flex:none;width:34px;height:34px;border-radius:10px;background:var(--surface-alt);display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--brand)}
.scene-item h3{font-size:1.12rem;margin-bottom:6px}
.scene-item p{font-size:15px;color:var(--ink-2);line-height:1.8}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step{position:relative;padding:26px 22px;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-num{display:inline-block;font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--accent);margin-bottom:12px}
.step h3{font-size:1.1rem;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:22px 0;font-size:17px;font-weight:600;list-style:none;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";flex:none;font-family:var(--font-num);font-size:22px;line-height:1;color:var(--accent);transition:transform .24s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{margin:0 0 22px;padding:18px 20px;border-radius:var(--radius-sm);background:var(--surface-alt);font-size:15.5px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;
  padding:76px 0;
  color:#F2EFE6;
  background-image:linear-gradient(rgba(11,38,32,.88),rgba(11,38,32,.92)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px}
.cta-inner h2{font-size:clamp(1.6rem,2.6vw,2.2rem);max-width:560px}
.cta-inner p{margin-top:12px;color:rgba(245,242,234,.78);font-size:15.5px;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cta-contact{display:flex;flex-wrap:wrap;gap:8px 26px;font-size:14px;color:rgba(245,242,234,.72)}
.cta-contact b{font-family:var(--font-num);color:#fff;font-weight:600}
.cta-note{margin-top:30px;font-size:13px;color:rgba(245,242,234,.6)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(245,242,234,.82);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:20px;font-weight:800;color:#F7F4EC;margin-bottom:16px}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(245,242,234,.66);max-width:340px}
.footer-social{display:flex;gap:12px;margin-top:20px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:999px;border:1px solid rgba(245,242,234,.2);transition:background .2s ease,border-color .2s ease}
.footer-social a:hover{background:rgba(245,242,234,.12);border-color:rgba(245,242,234,.45)}
.footer-social svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:rgba(245,242,234,.55);margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(245,242,234,.76);transition:color .2s ease}
.footer-links a:hover{color:#fff}
.footer-form{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.footer-form input{flex:1 1 180px;height:48px;padding:0 16px;border-radius:var(--radius-sm);border:1px solid rgba(245,242,234,.24);background:rgba(245,242,234,.06);color:#F5F2EA}
.footer-form input::placeholder{color:rgba(245,242,234,.45)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.28)}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(245,242,234,.66)}
.footer-contact b{font-family:var(--font-num);color:#fff;font-weight:600}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:56px;padding-top:24px;border-top:1px solid rgba(245,242,234,.16);font-size:13px;color:rgba(245,242,234,.55)}
.footer-bottom nav{display:flex;flex-wrap:wrap;gap:20px}
.footer-bottom nav a:hover{color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:20px}
}
@media (max-width:1023px){
  .section{padding:72px 0}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .page-hero{padding:44px 0 40px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767px){
  .nav-links,.nav-actions .btn,.icon-btn{display:none}
  .hamburger{display:flex}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .zigzag{gap:44px}
  .zig-item{grid-template-columns:1fr;gap:20px}
  .zig-item:nth-child(even) .zig-media{order:0}
  .card-grid{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr;gap:0}
  .steps{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .cta-band{padding:56px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-meta{gap:16px 24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .card:hover,.step:hover,.btn-primary:hover{transform:none}
  .hero-media:hover img,.zig-item:hover .zig-media img{transform:none}
}

/* roulang page: article */
/* ==================== 设计令牌 ==================== */
:root{
  --ink:#14201C;
  --brand:#123B33;
  --brand-deep:#0B2620;
  --accent:#E8622C;
  --accent-deep:#C94E1D;
  --sage:#7E9A8F;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-alt:#E9E4D8;
  --line:#D8D2C4;
  --ink-2:#4A554F;
  --ink-3:#7B857F;
  --light:#F5F2EA;
  --radius:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(20,32,28,.05);
  --shadow-2:0 8px 24px -12px rgba(20,32,28,.18);
  --nav-h:68px;
  --section-gap:clamp(56px,8vw,104px);
  --font-serif:"Noto Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter","DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ==================== 基础重置 ==================== */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,h5{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:-.02em;color:var(--ink)}
p{margin:0}
ul,ol{margin:0}
::selection{background:rgba(232,98,44,.22)}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ==================== 容器 ==================== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 clamp(20px,4vw,48px);
}
@media (min-width:1440px){
  .container{max-width:1320px}
}

/* ==================== 导航 ==================== */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  height:var(--nav-h);
  background:linear-gradient(90deg,var(--bg) 0 52%,var(--brand) 52% 100%);
  transition:background .2s ease,box-shadow .2s ease;
}
.site-header.is-scrolled{
  background:var(--brand);
  box-shadow:var(--shadow-1);
}
.nav-inner{
  height:var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.nav-left{display:flex;align-items:center;gap:38px;min-width:0}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-weight:700;
  font-size:1.1rem;
  letter-spacing:-.01em;
  color:var(--ink);
  white-space:nowrap;
  transition:color .2s ease;
}
.brand-mark{
  position:relative;
  width:22px;
  height:22px;
  border-radius:7px;
  background:var(--accent);
  flex:none;
  overflow:hidden;
}
.brand-mark::before{
  content:"";
  position:absolute;
  top:5px;
  right:5px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--light);
}
.brand-mark::after{
  content:"";
  position:absolute;
  left:5px;
  bottom:6px;
  width:9px;
  height:2px;
  border-radius:2px;
  background:var(--light);
  opacity:.85;
}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;
  font-size:.94rem;
  line-height:1;
  padding:8px 0;
  color:var(--ink-2);
  white-space:nowrap;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:2px;
  height:2px;
  width:0;
  background:var(--accent);
  border-radius:2px;
  transition:width .24s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,
.nav-links a.is-active::after{width:100%}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;
  height:40px;
  border-radius:999px;
  border:1px solid rgba(245,242,234,.32);
  color:var(--light);
  display:grid;
  place-items:center;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{background:rgba(245,242,234,.14);border-color:rgba(245,242,234,.6)}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border-radius:12px;
  border:1px solid rgba(245,242,234,.32);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:background-color .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--light)}
.nav-toggle:hover{background:rgba(245,242,234,.14)}
.site-header.is-scrolled .brand{color:var(--light)}
.site-header.is-scrolled .nav-links a{color:rgba(245,242,234,.78)}
.site-header.is-scrolled .nav-links a:hover,
.site-header.is-scrolled .nav-links a.is-active{color:var(--light)}

/* 搜索浮层 */
.search-panel{
  position:fixed;
  left:0;
  right:0;
  top:var(--nav-h);
  z-index:70;
  background:var(--brand-deep);
  padding:22px 0;
  border-bottom:1px solid rgba(245,242,234,.14);
  opacity:0;
  visibility:hidden;
  transform:translateY(-10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.search-form{display:flex;gap:12px}
.search-form input{
  flex:1;
  min-width:0;
  height:48px;
  border-radius:10px;
  border:1px solid rgba(245,242,234,.25);
  background:rgba(245,242,234,.06);
  color:var(--light);
  padding:0 16px;
  font-size:15px;
}
.search-form input::placeholder{color:rgba(245,242,234,.5)}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.35)}

/* 移动抽屉 */
.drawer{
  position:fixed;
  top:0;
  right:0;
  height:100%;
  width:min(86vw,340px);
  background:var(--brand-deep);
  color:var(--light);
  z-index:90;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:26px;
  transform:translateX(100%);
  transition:transform .28s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-head .brand{color:var(--light)}
.drawer-close{
  width:36px;
  height:36px;
  border-radius:10px;
  border:1px solid rgba(245,242,234,.24);
  color:var(--light);
  font-size:20px;
  line-height:1;
  display:grid;
  place-items:center;
}
.drawer-links{display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  padding:13px 2px;
  font-size:15px;
  color:rgba(245,242,234,.82);
  border-bottom:1px solid rgba(245,242,234,.12);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-links a:hover{color:var(--accent);padding-left:6px}
.drawer-cta{width:100%}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,38,32,.5);
  z-index:80;
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ==================== 按钮 / 标签 ==================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:999px;
  font-size:.95rem;
  font-weight:600;
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn:hover{transform:scale(1.02)}
.btn:disabled{opacity:.45;pointer-events:none}
.btn-primary{background:var(--accent);color:#FFFFFF;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent-deep);box-shadow:var(--shadow-2)}
.btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-secondary:hover{background:var(--ink);color:var(--light)}
.btn-ghost{background:transparent;border-color:rgba(245,242,234,.42);color:var(--light)}
.btn-ghost:hover{background:rgba(245,242,234,.12)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 20px;font-size:.88rem}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1.7;
}
.badge-fill{background:var(--sage);color:#0B2620}
.badge-outline{border:1px solid var(--line);color:var(--ink-2);background:var(--surface)}
.chip{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  font-size:12.5px;
  color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.chip:hover{border-color:var(--accent);color:var(--accent)}

/* ==================== 文章头部 ==================== */
.article-hero{
  position:relative;
  padding:56px 0 8px;
}
.article-hero::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(20,32,28,.05) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.55;
  pointer-events:none;
  mask-image:linear-gradient(to bottom,rgba(0,0,0,.5),transparent 78%);
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.5),transparent 78%);
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--ink-3);
}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink-2);font-weight:500;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  margin-top:18px;
  font-size:clamp(1.95rem,4vw,3rem);
  line-height:1.22;
  max-width:920px;
  font-weight:800;
}
.article-meta{
  display:flex;
  align-items:center;
  gap:12px;
  flex-wrap:wrap;
  margin-top:22px;
  font-size:13px;
  color:var(--ink-3);
}
.article-meta .meta-date{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.dot{width:4px;height:4px;border-radius:50%;background:var(--sage);display:inline-block}
.article-cover{
  margin:36px 0 0;
  border-radius:var(--radius);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--surface-alt);
  box-shadow:var(--shadow-1);
}
.article-cover img{width:100%;height:100%;object-fit:cover}

/* ==================== 正文与侧栏 ==================== */
.article-shell{padding:52px 0 var(--section-gap)}
.article-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:56px;
  align-items:start;
}
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--ink);
  word-break:break-word;
}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.3em}
.article-body h2{
  font-size:clamp(1.4rem,2.4vw,1.75rem);
  line-height:1.4;
  margin:2.2em 0 .85em;
  padding-left:14px;
  border-left:3px solid var(--accent);
}
.article-body h3{
  font-size:1.22rem;
  line-height:1.5;
  margin:1.8em 0 .6em;
  font-weight:700;
}
.article-body h4{font-size:1.05rem;margin:1.5em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.5em}
.article-body ul li::marker{color:var(--sage)}
.article-body ol li::marker{color:var(--sage);font-family:var(--font-num)}
.article-body li{margin:.35em 0}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;transition:color .2s ease}
.article-body a:hover{color:var(--accent)}
.article-body blockquote{
  margin:1.7em 0;
  padding:18px 22px;
  background:var(--surface-alt);
  border-left:3px solid var(--accent);
  border-radius:0 10px 10px 0;
  color:var(--ink-2);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);margin:1.7em 0;height:auto}
.article-body figure{margin:1.7em 0}
.article-body figure img{margin:0}
.article-body figcaption{
  margin-top:10px;
  font-size:12.5px;
  line-height:1.7;
  color:var(--ink-3);
  text-align:center;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.7em 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:11px 14px;
  text-align:left;
}
.article-body th{background:var(--surface-alt);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(233,228,216,.32)}
.article-body pre{
  background:var(--brand-deep);
  color:#E9E4D8;
  padding:18px 20px;
  border-radius:var(--radius-sm);
  overflow-x:auto;
  font-size:14px;
  line-height:1.75;
  margin:1.7em 0;
}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body code{
  font-family:var(--font-num);
  font-size:.92em;
  background:var(--surface-alt);
  padding:2px 6px;
  border-radius:6px;
}

.empty-state{
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  text-align:center;
}
.empty-state p{font-size:17px;color:var(--ink-2);margin-bottom:22px}

/* 侧栏 */
.sidebar{
  position:sticky;
  top:calc(var(--nav-h) + 24px);
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px
}
.side-title{
  font-size:12px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--ink-3);
  margin-bottom:14px;
}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav a{
  padding:9px 0 9px 12px;
  font-size:14.5px;
  color:var(--ink-2);
  border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease,padding-left .2s ease;
}
.side-nav a:hover{color:var(--accent);border-left-color:var(--accent);padding-left:16px}
.side-posts{list-style:none;padding:0;display:flex;flex-direction:column;gap:14px}
.side-posts a{display:block}
.side-posts .sp-title{
  display:block;
  font-size:14.5px;
  line-height:1.6;
  color:var(--ink);
  transition:color .2s ease;
}
.side-posts a:hover .sp-title{color:var(--accent)}
.side-posts .sp-date{
  display:block;
  margin-top:4px;
  font-size:12.5px;
  color:var(--ink-3);
  font-family:var(--font-num);
}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}

/* ==================== 文末区域 ==================== */
.post-foot{
  margin-top:56px;
  max-width:760px;
  display:flex;
  flex-direction:column;
  gap:32px;
}
.post-foot .tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-label{font-size:12.5px;color:var(--ink-3);letter-spacing:.08em}
.share-row{
  display:flex;
  align-items:center;
  gap:12px;
  padding:18px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
}
.share-row .share-label{font-size:13.5px;color:var(--ink-2);margin-right:auto}
.share-btn{
  width:38px;
  height:38px;
  border-radius:50%;
  border:1px solid var(--line);
  display:grid;
  place-items:center;
  color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.share-btn svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.share-btn:hover{border-color:var(--accent);color:var(--accent)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.post-nav-item{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:20px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--surface);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-nav-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--sage)}
.post-nav-item .pn-label{font-size:12px;letter-spacing:.08em;color:var(--ink-3)}
.post-nav-item .pn-title{font-size:15px;font-weight:600;line-height:1.6}
.post-nav-item.is-next{text-align:right}
.back-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.back-link:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ==================== 相关推荐 ==================== */
.related{padding:0 0 var(--section-gap)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:34px;
}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.3}
.section-head .section-sub{margin-top:8px;font-size:14.5px;color:var(--ink-2);max-width:56ch}
.text-link{
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--sage)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-alt)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-3);font-family:var(--font-num)}
.card-title{font-size:1.05rem;line-height:1.55;font-weight:700;transition:color .2s ease}
.card:hover .card-title{color:var(--accent)}
.card-text{
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.card-link{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand)}

/* ==================== CTA 条带 ==================== */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:18px;
  background:var(--brand);
  color:var(--light);
  padding:56px clamp(24px,4vw,48px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.2;
}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{color:var(--light);font-size:clamp(1.4rem,2.6vw,1.85rem);line-height:1.35;max-width:22ch}
.cta-band p{margin-top:12px;font-size:14.5px;color:rgba(245,242,234,.76);max-width:46ch}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-note{margin-top:18px;font-size:12.5px;color:rgba(245,242,234,.6);flex-basis:100%}

/* ==================== 页脚 ==================== */
.site-footer{
  background:var(--brand-deep);
  color:rgba(245,242,234,.78);
  padding:72px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.5fr;gap:40px}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:1.1rem;
  font-weight:700;
  color:var(--light);
}
.footer-desc{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(245,242,234,.66);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:20px}
.footer-social a{
  width:36px;
  height:36px;
  border-radius:10px;
  border:1px solid rgba(245,242,234,.18);
  display:grid;
  place-items:center;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.footer-social svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-social a:hover{border-color:var(--accent);color:var(--accent);background:rgba(232,98,44,.08)}
.footer-title{font-size:12px;font-weight:700;letter-spacing:.1em;color:rgba(245,242,234,.5);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px;font-size:14px}
.footer-links a{transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--accent);padding-left:3px}
.footer-form{display:flex;gap:10px}
.footer-form input{
  flex:1;
  min-width:0;
  height:46px;
  border-radius:10px;
  border:1px solid rgba(245,242,234,.22);
  background:rgba(245,242,234,.06);
  color:var(--light);
  padding:0 14px;
  font-size:14px;
}
.footer-form input::placeholder{color:rgba(245,242,234,.48)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.3)}
.footer-contact{display:flex;flex-direction:column;gap:9px;margin-top:20px;font-size:13.5px;color:rgba(245,242,234,.68)}
.footer-contact b{color:var(--light);font-weight:600;font-family:var(--font-num)}
.footer-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(245,242,234,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(245,242,234,.55);
}
.footer-bottom nav{display:flex;gap:18px;flex-wrap:wrap}
.footer-bottom a{transition:color .2s ease}
.footer-bottom a:hover{color:var(--accent)}

/* ==================== 响应式 ==================== */
@media (max-width:1279px){
  .article-title{font-size:clamp(1.85rem,3.4vw,2.5rem)}
}
@media (max-width:1023px){
  .site-header{background:var(--brand)}
  .site-header .brand{color:var(--light)}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:44px}
  .sidebar{position:static}
  .article-body{max-width:none}
  .post-foot{max-width:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}
  .footer-desc{max-width:none}
  .cta-band{padding:44px 28px}
}
@media (max-width:767px){
  .article-hero{padding-top:40px}
  .article-title{margin-top:14px}
  .article-meta{gap:10px;font-size:12.5px}
  .article-cover{margin-top:26px;aspect-ratio:4/3}
  .article-shell{padding:38px 0 56px}
  .article-body{font-size:16.5px;line-height:1.88}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.is-next{text-align:left}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .search-form{flex-direction:column}
  .search-form .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-property:color,background-color,border-color,box-shadow,opacity !important;
    transition-duration:.001ms !important;
  }
  .btn:hover,.card:hover,.post-nav-item:hover{transform:none !important}
  .card:hover .card-thumb img{transform:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#14201C;
  --brand:#123B33;
  --brand-deep:#0B2620;
  --accent:#E8622C;
  --sage:#7E9A8F;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-alt:#E9E4D8;
  --line:#D8D2C4;
  --ink-2:#4A554F;
  --ink-3:#7B857F;
  --paper:#F5F2EA;
  --shadow-1:0 1px 2px rgba(20,32,28,.05);
  --shadow-2:0 8px 24px -12px rgba(20,32,28,.18);
  --radius:14px;
  --radius-sm:10px;
  --container:1200px;
  --ff-serif:"Noto Serif SC","Songti SC",serif;
  --ff-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --ff-num:"Inter","DIN Alternate","Helvetica Neue",Arial,sans-serif;
}

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

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--ff-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--ff-serif);font-weight:700;letter-spacing:-.02em;}
p{margin:0;}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:999px;
  border:1px solid transparent;
  font-family:var(--ff-sans);
  font-size:15px;
  font-weight:500;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-primary{
  background:var(--accent);
  color:#FFF7F2;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{
  background:#D2501E;
  transform:scale(1.02);
  box-shadow:var(--shadow-2);
}
.btn-secondary{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-secondary:hover{
  background:var(--ink);
  color:var(--paper);
}
.btn-ghost{
  background:transparent;
  color:var(--paper);
  border-color:rgba(245,242,234,.35);
}
.btn-ghost:hover{
  background:rgba(245,242,234,.12);
  border-color:rgba(245,242,234,.6);
}
.btn:disabled,.btn[aria-disabled="true"]{
  opacity:.45;
  pointer-events:none;
}
.btn-block{width:100%;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:500;
  color:var(--ink);
  border-bottom:2px solid transparent;
  padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.text-link::after{
  content:"→";
  font-family:var(--ff-num);
  transition:transform .24s ease;
}
.text-link:hover{
  color:var(--accent);
  border-color:var(--accent);
}
.text-link:hover::after{transform:translateX(3px);}
.text-link.on-dark{color:var(--paper);}
.text-link.on-dark:hover{color:#FFD9C6;border-color:#FFD9C6;}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  letter-spacing:.06em;
}
.badge-fill{background:var(--sage);color:#0F2A23;}
.badge-line{border:1px solid var(--line);color:var(--ink-2);background:var(--surface);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  height:68px;
  background:var(--brand);
  transition:box-shadow .2s ease;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,var(--bg) 0 52%,var(--brand) 52% 100%);
  opacity:1;
  transition:opacity .2s ease;
  z-index:0;
}
.site-header.is-solid::before{opacity:0;}
.site-header.is-solid{box-shadow:var(--shadow-1);}

.header-inner{
  position:relative;
  z-index:1;
  height:68px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:0 clamp(16px,3vw,40px);
}
.header-left{
  display:flex;
  align-items:center;
  gap:clamp(20px,2.4vw,34px);
  min-width:0;
  color:var(--ink);
  transition:color .2s ease;
}
.header-right{
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--paper);
  transition:color .2s ease;
}
.site-header.is-solid .header-left,
.site-header.is-solid .header-right{color:var(--paper);}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--ff-serif);
  font-weight:900;
  font-size:19px;
  letter-spacing:.01em;
  white-space:nowrap;
}
.brand-mark{
  position:relative;
  display:inline-block;
  flex:0 0 auto;
  width:20px;
  height:20px;
  border:2px solid var(--accent);
  border-radius:6px 6px 6px 2px;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:4px;
  border-radius:2px;
  background:currentColor;
  opacity:.85;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:clamp(16px,1.9vw,28px);
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:14.5px;
  font-weight:500;
  color:inherit;
  opacity:.85;
  transition:opacity .2s ease,color .2s ease;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:2px;
  width:0;
  background:var(--accent);
  transition:width .24s ease;
}
.nav-links a:hover{opacity:1;}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{opacity:1;font-weight:700;}
.nav-links a.is-active::after{width:100%;}

.icon-btn{
  width:40px;
  height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  border:1px solid rgba(245,242,234,.28);
  background:transparent;
  color:inherit;
  transition:background-color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(245,242,234,.14);border-color:rgba(245,242,234,.5);}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

.header-cta{min-height:40px;padding:0 20px;font-size:14px;}

.burger{
  display:none;
  width:42px;
  height:42px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink);
  align-items:center;
  justify-content:center;
}
.burger span{
  display:block;
  width:18px;
  height:2px;
  background:currentColor;
  position:relative;
  border-radius:2px;
}
.burger span::before,
.burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:currentColor;
  border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* 搜索浮层 */
.search-overlay{
  position:fixed;
  top:0;left:0;right:0;
  z-index:110;
  background:var(--brand-deep);
  color:var(--paper);
  padding:24px 0 28px;
  transform:translateY(-102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
}
.search-overlay.is-open{transform:translateY(0);}
.search-row{
  display:flex;
  align-items:center;
  gap:14px;
}
.search-row input{
  flex:1;
  height:50px;
  padding:0 18px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(245,242,234,.3);
  background:rgba(245,242,234,.06);
  color:var(--paper);
  font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-row input::placeholder{color:rgba(245,242,234,.55);}
.search-row input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(232,98,44,.35);
}
.search-close{
  width:50px;height:50px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(245,242,234,.3);
  background:transparent;
  color:var(--paper);
  font-size:20px;
  line-height:1;
}
.search-close:hover{background:rgba(245,242,234,.12);}
.search-hint{
  margin-top:12px;
  font-size:13px;
  color:rgba(245,242,234,.6);
}

/* 移动抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;
  z-index:105;
  width:min(86vw,360px);
  height:100%;
  padding:26px 24px 40px;
  background:var(--brand-deep);
  color:var(--paper);
  transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid rgba(245,242,234,.18);
}
.drawer-title{
  font-family:var(--ff-serif);
  font-weight:900;
  font-size:18px;
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.drawer-close{
  width:38px;height:38px;
  border-radius:999px;
  border:1px solid rgba(245,242,234,.28);
  background:transparent;
  color:var(--paper);
  line-height:1;
}
.drawer-close:hover{background:rgba(245,242,234,.12);}
.drawer-nav{
  display:flex;
  flex-direction:column;
  padding:14px 0 20px;
}
.drawer-nav a{
  padding:14px 0;
  font-size:16px;
  border-bottom:1px solid rgba(245,242,234,.12);
  transition:color .2s ease,padding-left .2s ease;
}
.drawer-nav a:hover{color:#FFD9C6;padding-left:6px;}
.drawer-nav a.is-active{color:var(--accent);font-weight:700;}
.drawer-cta{margin-top:22px;}
.drawer-mask{
  position:fixed;
  inset:0;
  z-index:104;
  background:rgba(11,38,32,.55);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-head h2{
  font-size:clamp(1.8rem,3vw,2.5rem);
  line-height:1.2;
}
.section-head .eyebrow{
  display:block;
  margin-bottom:12px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--ink-3);
  font-family:var(--ff-num);
}
.section-lead{
  max-width:660px;
  margin-top:14px;
  color:var(--ink-2);
  font-size:16px;
}

/* ---------- Hero ---------- */
.hero{
  padding:72px 0 56px;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:clamp(32px,4vw,64px);
  align-items:center;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  font-family:var(--ff-num);
  font-size:12.5px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink-2);
  margin-bottom:22px;
}
.hero-meta .dot{
  width:5px;height:5px;
  border-radius:50%;
  background:var(--sage);
  display:inline-block;
}
.hero h1{
  font-size:clamp(2.4rem,5vw,4.2rem);
  line-height:1.08;
  margin-bottom:22px;
}
.hero-sub{
  font-size:clamp(1rem,1.4vw,1.15rem);
  color:var(--ink-2);
  max-width:620px;
  margin-bottom:24px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:32px;
}
.hero-facts{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  padding-top:24px;
  border-top:1px solid var(--line);
  max-width:620px;
}
.hero-facts b{
  display:block;
  font-family:var(--ff-num);
  font-size:clamp(1.4rem,2.2vw,1.9rem);
  font-weight:700;
  line-height:1.1;
  color:var(--brand);
}
.hero-facts span{
  display:block;
  margin-top:6px;
  font-size:13px;
  color:var(--ink-3);
}
.hero-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  height:clamp(260px,32vw,400px);
  background:var(--surface-alt);
  box-shadow:var(--shadow-2);
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(11,38,32,.05),rgba(11,38,32,.42));
}
.hero-card{
  position:absolute;
  left:18px;
  bottom:18px;
  z-index:2;
  background:var(--surface);
  border-radius:var(--radius);
  box-shadow:var(--shadow-2);
  padding:14px 18px;
  display:flex;
  align-items:center;
  gap:14px;
}
.hero-card b{
  font-family:var(--ff-num);
  font-size:22px;
  font-weight:700;
  color:var(--brand);
}
.hero-card span{
  font-size:12.5px;
  color:var(--ink-3);
  line-height:1.5;
}

/* ---------- 锚点标签行 ---------- */
.anchor-section{
  padding:0 0 8px;
}
.anchor-wrap{
  position:relative;
}
.anchor-wrap::after{
  content:"";
  position:absolute;
  top:0;right:-24px;bottom:12px;
  width:72px;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(245,242,234,0),var(--bg));
}
@media (min-width:1280px){
  .anchor-wrap::after{right:-1px;}
}
.anchor-bar{
  display:flex;
  gap:12px;
  overflow-x:auto;
  padding:4px 0 14px;
  scrollbar-width:thin;
  scrollbar-color:var(--line) transparent;
  -webkit-overflow-scrolling:touch;
}
.anchor-bar::-webkit-scrollbar{height:6px;}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.anchor-pill{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-2);
  font-size:14px;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-pill:hover{
  border-color:var(--brand);
  color:var(--brand);
}
.anchor-pill.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--paper);
}

/* ---------- 卡片网格 ---------- */
.cards-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--sage);
}
.card-media{
  aspect-ratio:16/10;
  background:var(--surface-alt);
  overflow:hidden;
}
.card-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{
  display:flex;
  flex-direction:column;
  flex:1;
  gap:12px;
  padding:22px 22px 20px;
}
.card-tag{
  align-self:flex-start;
}
.card h3{
  font-size:1.28rem;
  line-height:1.4;
  transition:color .2s ease;
}
.card:hover h3{color:var(--accent);}
.card p{
  color:var(--ink-2);
  font-size:14.5px;
  line-height:1.7;
}
.card-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:12.5px;
  color:var(--ink-3);
  font-family:var(--ff-num);
  letter-spacing:.04em;
}

/* ---------- 四步节奏 ---------- */
.rhythm{
  background:var(--surface-alt);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.rhythm-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.rhythm-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.rhythm-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.rhythm-num{
  font-family:var(--ff-num);
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--accent);
  display:block;
  margin-bottom:14px;
}
.rhythm-item h3{
  font-size:1.2rem;
  margin-bottom:10px;
}
.rhythm-item p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--ink-2);
}

/* ---------- 阶段提示条 ---------- */
.stage-strip{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  margin-top:40px;
}
.stage-item{
  border-left:3px solid var(--sage);
  padding:6px 0 6px 18px;
}
.stage-item strong{
  display:block;
  font-family:var(--ff-serif);
  font-size:1.05rem;
  margin-bottom:8px;
}
.stage-item span{
  font-size:14.5px;
  color:var(--ink-2);
}

/* ---------- FAQ ---------- */
.faq-list{
  border-top:1px solid var(--line);
  max-width:900px;
}
.faq-item{
  border-bottom:1px solid var(--line);
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:24px 4px;
  background:transparent;
  border:0;
  text-align:left;
  font-family:var(--ff-serif);
  font-size:clamp(1.02rem,1.5vw,1.18rem);
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:20px;
  height:20px;
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--accent);
  border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:16px;height:2px;}
.faq-icon::after{width:2px;height:16px;transition:transform .28s ease;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a-inner{
  padding:0 4px 26px;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
  max-width:820px;
}

/* ---------- CTA 条带 ---------- */
.cta-band{
  position:relative;
  color:var(--paper);
  background:linear-gradient(rgba(11,38,32,.86),rgba(11,38,32,.92)),url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding:72px 0;
  border-radius:0;
}
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.22;
  margin-bottom:14px;
}
.cta-band p{
  color:rgba(245,242,234,.78);
  max-width:620px;
  font-size:15.5px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:20px;
}
.cta-contact{
  display:flex;
  flex-wrap:wrap;
  gap:10px 26px;
  font-size:14px;
  color:rgba(245,242,234,.75);
}
.cta-contact b{
  font-family:var(--ff-num);
  color:var(--paper);
  font-weight:600;
}
.cta-note{
  margin-top:22px;
  font-size:12.5px;
  letter-spacing:.04em;
  color:rgba(245,242,234,.55);
  font-family:var(--ff-num);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:var(--paper);
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--ff-serif);
  font-weight:900;
  font-size:19px;
  margin-bottom:16px;
}
.footer-desc{
  font-size:14.5px;
  line-height:1.8;
  color:rgba(245,242,234,.72);
  max-width:340px;
}
.footer-social{
  display:flex;
  gap:12px;
  margin-top:20px;
}
.footer-social a{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  border:1px solid rgba(245,242,234,.24);
  transition:background-color .2s ease,border-color .2s ease;
}
.footer-social a:hover{background:rgba(245,242,234,.12);border-color:rgba(245,242,234,.5);}
.footer-social svg{
  width:17px;height:17px;
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.footer-title{
  font-size:12px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:rgba(245,242,234,.55);
  margin-bottom:18px;
  font-family:var(--ff-num);
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a{
  font-size:14.5px;
  color:rgba(245,242,234,.82);
  transition:color .2s ease,padding-left .2s ease;
}
.footer-links a:hover{color:#FFD9C6;padding-left:4px;}
.footer-form{
  display:flex;
  gap:10px;
  margin-bottom:20px;
}
.footer-form input{
  flex:1;
  min-width:0;
  height:48px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(245,242,234,.26);
  background:rgba(245,242,234,.05);
  color:var(--paper);
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:rgba(245,242,234,.5);}
.footer-form input:focus{
  outline:none;
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(232,98,44,.28);
}
.footer-form .btn{min-height:48px;padding:0 22px;font-size:14px;}
.footer-contact{
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:14px;
  color:rgba(245,242,234,.72);
}
.footer-contact b{
  font-family:var(--ff-num);
  color:var(--paper);
  font-weight:600;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:22px 0 26px;
  border-top:1px solid rgba(245,242,234,.16);
  font-size:13px;
  color:rgba(245,242,234,.6);
}
.footer-bottom nav{
  display:flex;
  flex-wrap:wrap;
  gap:18px;
}
.footer-bottom nav a{transition:color .2s ease;}
.footer-bottom nav a:hover{color:#FFD9C6;}

/* ---------- 入场动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease,transform .5s ease;
}
.reveal.is-in{
  opacity:1;
  transform:none;
}

/* ---------- 响应式 ---------- */
@media (min-width:1400px){
  .container{max-width:1320px;}
}

@media (max-width:1279px){
  .section{padding:80px 0;}
  .hero{padding:64px 0 48px;}
}

@media (max-width:1023px){
  .nav-links{display:none;}
  .burger{display:inline-flex;}
  .header-cta{display:none;}
  .header-left{gap:16px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{height:320px;}
  .section{padding:72px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cards-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rhythm-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stage-strip{grid-template-columns:1fr;gap:20px;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media (max-width:980px){
  .site-header{background:var(--bg);border-bottom:1px solid var(--line);}
  .site-header::before{background:var(--bg);}
  .site-header.is-solid{background:var(--bg);box-shadow:var(--shadow-1);}
  .header-left,
  .header-right,
  .site-header.is-solid .header-left,
  .site-header.is-solid .header-right{color:var(--ink);}
  .icon-btn{border-color:var(--line);}
  .icon-btn:hover{background:rgba(18,59,51,.06);border-color:var(--sage);}
}

@media (max-width:767px){
  body{font-size:16px;line-height:1.8;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .hero{padding:48px 0 36px;}
  .hero-actions .btn{width:100%;}
  .hero-facts{grid-template-columns:1fr 1fr;gap:16px 20px;}
  .hero-media{height:260px;}
  .hero-card{left:12px;right:12px;bottom:12px;}
  .cards-grid{grid-template-columns:1fr;}
  .rhythm-grid{grid-template-columns:1fr;}
  .anchor-wrap::after{width:48px;right:-20px;}
  .cta-band{padding:56px 0;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:14px;}
}

@media (max-width:520px){
  .hero-facts{grid-template-columns:1fr;}
  .hero h1{font-size:2.05rem;}
  .hero-meta{font-size:11.5px;gap:9px;}
  .card-body{padding:18px 18px 18px;}
  .rhythm-item{padding:20px 18px;}
  .faq-q{padding:20px 2px;font-size:1rem;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
  .card:hover,.rhythm-item:hover{transform:none;}
  .card:hover .card-media img{transform:none;}
  .btn-primary:hover{transform:none;}
}

/* roulang page: category3 */
:root{
  --ink:#14201C;
  --brand:#123B33;
  --brand-deep:#0B2620;
  --accent:#E8622C;
  --sage:#7E9A8F;
  --bg:#F5F2EA;
  --surface:#FFFFFF;
  --surface-alt:#E9E4D8;
  --line:#D8D2C4;
  --ink-2:#4A554F;
  --ink-3:#7B857F;
  --radius:14px;
  --radius-sm:10px;
  --pill:999px;
  --shadow-1:0 1px 2px rgba(20,32,28,.05);
  --shadow-2:0 8px 24px -12px rgba(20,32,28,.18);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --mono:"Inter","DIN Alternate","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;letter-spacing:-.02em;margin:0;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;background:none;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-primary{background:var(--accent);color:#FFF6F0;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:#CE5220;transform:scale(1.02);box-shadow:var(--shadow-2)}
.btn-secondary{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-secondary:hover{background:var(--ink);color:#F5F2EA}
.btn-ghost{background:transparent;color:#F2EFE6;border-color:rgba(245,242,234,.38)}
.btn-ghost:hover{background:rgba(245,242,234,.12)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:2px solid var(--accent);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.text-link:hover{color:var(--accent);transform:translateX(2px)}
.text-link svg{width:14px;height:14px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:var(--bg);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-stuck{background:var(--surface);box-shadow:var(--shadow-1);border-bottom-color:var(--line)}
.header-inner{
  max-width:1320px;margin:0 auto;padding:0 32px;height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:22px;height:22px;border-radius:7px;background:var(--brand);
  position:relative;display:inline-block;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:6px;width:10px;height:10px;
  background:var(--accent);border-radius:3px;
}
.brand-text{font-family:var(--serif);font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:28px;min-width:0}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s ease;
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{width:100%}
.nav-right{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{
  width:40px;height:40px;border-radius:var(--pill);
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--surface-alt);color:var(--ink)}
.icon-btn svg{width:18px;height:18px}
.menu-btn{display:none;width:44px;height:40px;border-radius:12px;border:1px solid var(--line);background:transparent;align-items:center;justify-content:center}
.menu-btn svg{width:20px;height:20px}
.search-layer{
  max-height:0;overflow:hidden;background:var(--brand-deep);color:#F2EFE6;
  transition:max-height .28s ease;
}
.search-layer.is-open{max-height:140px}
.search-layer .container{padding-top:20px;padding-bottom:22px}
.search-form{display:flex;gap:12px;align-items:center}
.search-form input{
  flex:1;height:48px;border-radius:var(--radius-sm);
  background:rgba(245,242,234,.06);border:1px solid rgba(245,242,234,.22);
  color:#F2EFE6;padding:0 16px;
}
.search-form input::placeholder{color:rgba(242,239,230,.5)}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.35)}
.search-hint{font-size:13px;color:rgba(242,239,230,.62);margin-top:10px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:120;
  background:var(--brand-deep);color:#F2EFE6;
  padding:24px 22px 32px;
  transform:translateX(104%);transition:transform .3s ease;
  display:flex;flex-direction:column;gap:8px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:800;font-size:18px}
.drawer-close{width:40px;height:40px;border-radius:var(--pill);border:1px solid rgba(245,242,234,.25);background:transparent;color:#F2EFE6;display:inline-flex;align-items:center;justify-content:center}
.drawer-close svg{width:16px;height:16px}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:15px 2px;font-size:16px;color:rgba(242,239,230,.82);
  border-bottom:1px solid rgba(245,242,234,.14);
}
.drawer-nav a.is-active{color:#F2EFE6;font-weight:600}
.drawer .btn{margin-top:22px;width:100%}
.backdrop{
  position:fixed;inset:0;background:rgba(11,38,32,.5);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.backdrop.is-open{opacity:1;visibility:visible}

/* ============ 分类首屏 ============ */
.cat-hero{padding:72px 0 0;background:var(--bg)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  color:var(--ink-3);text-transform:uppercase;margin-bottom:20px;
}
.eyebrow .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);display:inline-block}
.cat-hero h1{
  font-size:clamp(2.4rem,5vw,3.6rem);line-height:1.1;
  max-width:900px;
}
.cat-hero .lead{
  margin-top:22px;max-width:760px;
  font-size:17px;line-height:1.9;color:var(--ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-meta div{font-size:14px;color:var(--ink-3)}
.hero-meta b{display:block;font-family:var(--mono);font-size:20px;font-weight:600;color:var(--ink);letter-spacing:.01em}
.hero-media{
  margin-top:44px;height:340px;border-radius:var(--radius);overflow:hidden;
  background:var(--surface-alt);border:1px solid var(--line);
}
.hero-media img{width:100%;height:100%;object-fit:cover}

/* ============ 文档式主体 ============ */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{margin-bottom:40px;max-width:720px}
.section-head h2{font-size:clamp(1.8rem,3vw,2.5rem);line-height:1.2}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.doc-layout{display:grid;grid-template-columns:256px minmax(0,1fr);gap:56px;align-items:start}
.doc-toc{
  position:sticky;top:100px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-1);
}
.toc-title{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);
  padding:9px 12px;border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.toc-list a:hover{color:var(--ink);background:var(--surface-alt)}
.toc-list a.is-current{color:var(--accent);border-left-color:var(--accent);font-weight:600;background:rgba(232,98,44,.06)}
.toc-toggle{display:none}
.doc-body{max-width:780px}
.doc-block{padding-bottom:40px;margin-bottom:40px;border-bottom:1px solid var(--line)}
.doc-block:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.doc-block h2{
  font-size:1.55rem;line-height:1.35;
  padding-left:14px;border-left:3px solid var(--accent);
  margin-bottom:20px;
}
.doc-block h3{font-size:1.1rem;margin:26px 0 10px;font-weight:700}
.doc-block p{font-size:17px;line-height:1.9;color:var(--ink);margin-bottom:18px}
.doc-block p:last-child{margin-bottom:0}
.doc-block ul{margin:0 0 18px}
.doc-block ul li{
  position:relative;padding-left:20px;margin-bottom:10px;
  font-size:16.5px;line-height:1.85;color:var(--ink-2);
}
.doc-block ul li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:7px;height:7px;border-radius:50%;background:var(--sage);
}
.doc-quote{
  background:var(--surface-alt);border-left:3px solid var(--accent);
  border-radius:0 var(--radius) var(--radius) 0;
  padding:18px 22px;margin:24px 0;
  font-size:16px;color:var(--ink-2);line-height:1.85;
}
.doc-figure{margin:28px 0}
.doc-figure .frame{
  border-radius:var(--radius);overflow:hidden;background:var(--surface-alt);
  border:1px solid var(--line);aspect-ratio:16/9;
}
.doc-figure img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.doc-figure .frame:hover img{transform:scale(1.03)}
.doc-figure figcaption{font-size:13px;color:var(--ink-3);margin-top:10px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin:24px 0}
table{width:100%;border-collapse:collapse;min-width:560px}
th,td{padding:14px 18px;text-align:left;font-size:15px;border-bottom:1px solid var(--line)}
th{background:var(--surface-alt);font-family:var(--sans);font-weight:600;color:var(--ink);font-size:14px;letter-spacing:.02em}
td{color:var(--ink-2)}
tbody tr:last-child td{border-bottom:none}
td.mono{font-family:var(--mono);color:var(--ink)}
.updated-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:rgba(126,154,143,.22);
  border-radius:var(--pill);padding:4px 12px;margin-left:12px;
  vertical-align:middle;font-family:var(--mono);
}

/* ============ 速查卡 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.quick-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  position:relative;
}
.quick-card::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:2px;
  background:var(--accent);opacity:0;transition:opacity .25s ease;
}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--sage)}
.quick-card:hover::before{opacity:1}
.quick-icon{
  width:42px;height:42px;border-radius:12px;background:var(--surface-alt);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  margin-bottom:18px;
}
.quick-icon svg{width:20px;height:20px}
.quick-card h3{font-size:1.15rem;margin-bottom:10px}
.quick-card p{font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.quick-card .num{
  font-family:var(--mono);font-size:12px;letter-spacing:.12em;color:var(--ink-3);
  display:block;margin-bottom:10px;
}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:none;border:none;text-align:left;
  font-family:var(--serif);font-size:1.08rem;font-weight:700;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-plus{
  flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  transition:transform .28s ease,border-color .28s ease,background-color .28s ease;
}
.faq-plus svg{width:13px;height:13px}
.faq-item.is-open .faq-plus{transform:rotate(45deg);border-color:var(--accent);background:rgba(232,98,44,.1)}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{
  padding:0 40px 24px 4px;font-size:16px;line-height:1.85;color:var(--ink-2);
}

/* ============ CTA 条带 ============ */
.cta-band{
  position:relative;background:var(--brand-deep);
  color:#F2EFE6;padding:76px 0;overflow:hidden;
}
.cta-band .bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;
  opacity:.32;
}
.cta-band .container{position:relative;z-index:2}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.cta-band h2{color:#F7F4EC;font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.25;max-width:560px}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(242,239,230,.78);max-width:560px}
.cta-side{display:flex;flex-direction:column;gap:16px;align-items:flex-start}
.cta-buttons{display:flex;gap:12px;flex-wrap:wrap}
.cta-contact{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:rgba(242,239,230,.75)}
.cta-contact b{color:#F7F4EC;font-family:var(--mono);font-weight:600}
.cta-note{
  margin-top:36px;padding-top:20px;font-size:13px;color:rgba(242,239,230,.6);
  border-top:1px solid rgba(245,242,234,.18);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#E8E4DA;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--serif);font-size:19px;font-weight:800;color:#F7F4EC;
}
.footer-brand .brand-mark{background:#F2EFE6}
.footer-brand .brand-mark::after{background:var(--accent)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(232,228,218,.7);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:22px}
.footer-social a{
  width:38px;height:38px;border-radius:var(--pill);
  border:1px solid rgba(245,242,234,.2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .2s ease,border-color .2s ease;
}
.footer-social a:hover{background:rgba(245,242,234,.12);border-color:rgba(245,242,234,.4)}
.footer-social svg{width:16px;height:16px;fill:none;stroke:#E8E4DA;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.footer-social a:first-child svg{fill:#E8E4DA;stroke:none}
.footer-title{font-size:13px;letter-spacing:.12em;color:rgba(232,228,218,.55);margin-bottom:18px;font-family:var(--mono);text-transform:uppercase}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(232,228,218,.82);transition:color .2s ease}
.footer-links a:hover{color:#F7F4EC}
.footer-form{display:flex;gap:10px;margin-bottom:20px}
.footer-form input{
  flex:1;min-width:0;height:48px;border-radius:var(--radius-sm);
  background:rgba(245,242,234,.06);border:1px solid rgba(245,242,234,.22);
  color:#F2EFE6;padding:0 16px;font-size:14px;
}
.footer-form input::placeholder{color:rgba(232,228,218,.45)}
.footer-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,98,44,.28)}
.footer-form .btn{height:48px;padding:0 20px}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(232,228,218,.7)}
.footer-contact b{color:#F7F4EC;font-family:var(--mono);font-weight:600}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(245,242,234,.16);
  padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:rgba(232,228,218,.58);
}
.footer-bottom nav{display:flex;gap:20px;flex-wrap:wrap}
.footer-bottom nav a:hover{color:#F7F4EC}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .header-inner{padding:0 24px}
  .nav-links{gap:20px}
  .doc-layout{grid-template-columns:228px minmax(0,1fr);gap:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{display:none}
  .menu-btn{display:inline-flex}
  .section{padding:72px 0}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .hero-media{height:280px}
}
@media (max-width:900px){
  .doc-layout{grid-template-columns:1fr;gap:28px}
  .doc-toc{position:static;padding:16px 16px 8px}
  .toc-title{margin-bottom:10px}
  .toc-toggle{
    display:flex;align-items:center;justify-content:space-between;width:100%;
    background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius-sm);
    height:44px;padding:0 14px;font-size:14px;font-weight:600;color:var(--ink);
  }
  .toc-toggle svg{width:16px;height:16px;transition:transform .25s ease}
  .doc-toc.is-open .toc-toggle svg{transform:rotate(180deg)}
  .toc-list{max-height:0;overflow:hidden;transition:max-height .3s ease;margin-top:0}
  .doc-toc.is-open .toc-list{max-height:420px;margin-top:10px}
  .doc-body{max-width:none}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .header-inner{padding:0 20px;height:62px;gap:12px}
  .brand-text{font-size:17px}
  .nav-right .btn{display:none}
  .section{padding:56px 0}
  .cat-hero{padding:56px 0 0}
  .cat-hero .lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:18px}
  .hero-meta div{flex:1 1 40%}
  .hero-media{height:220px;margin-top:32px}
  .quick-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-buttons{width:100%;flex-direction:column}
  .cta-buttons .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .doc-figure .frame{aspect-ratio:4/3}
  .faq-q{font-size:1rem;padding:18px 2px}
  .faq-a p{padding-right:10px}
  .doc-block h2{font-size:1.32rem}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  .doc-figure .frame:hover img{transform:none}
  .quick-card:hover{transform:none}
  .btn:hover{transform:none}
}