/* roulang page: index */
:root{
  --c-primary:#0F6B63;
  --c-primary-600:#0B564F;
  --c-primary-100:#E3F1EE;
  --c-accent:#F97316;
  --c-accent-600:#DE5F08;
  --c-accent-soft:#FFF1E4;
  --c-highlight:#FF6B8A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-ink-900:#0C1A17;
  --c-ink-700:#23342F;
  --c-ink-500:#4A5C56;
  --c-line:#DFE5E0;
  --c-success:#2E9E6B;
  --c-warn:#D9822B;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --sh-1:0 2px 8px rgba(12,26,23,.06);
  --sh-2:0 16px 44px rgba(12,26,23,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SF Mono",Menlo,monospace;
  --wid:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--c-ink-700);
  background:var(--c-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-600)}
img{max-width:100%;display:block;height:auto}
button{font-family:inherit;cursor:pointer;border:0;background:none;padding:0;color:inherit}
input,select,textarea{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
section[id]{scroll-margin-top:96px}

.container{width:100%;max-width:var(--wid);margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.container{max-width:1240px}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:15px 30px;border-radius:999px;border:1.5px solid transparent;
  font-size:16px;font-weight:600;line-height:1;letter-spacing:.01em;white-space:nowrap;
  transition:transform .22s cubic-bezier(.2,.7,.3,1),box-shadow .22s,background-color .22s,color .22s,border-color .22s;
}
.btn i{font-size:13px}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-600);border-color:var(--c-primary-600)}
.btn-block{width:100%}

/* ===== 徽章 ===== */
.badge{display:inline-block;padding:5px 11px;border-radius:6px;font-size:12.5px;font-weight:600;line-height:1.5;letter-spacing:.02em}
.badge-primary{background:var(--c-primary-100);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-600)}
.badge-pink{background:#FFE9EE;color:#C9325A}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--c-bg);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-stuck{background:#fff;box-shadow:0 2px 14px rgba(12,26,23,.08);border-bottom-color:var(--c-line)}
.nav-wrap{
  max-width:1240px;margin:0 auto;padding:0 20px;height:72px;
  display:flex;align-items:center;gap:22px;
}
@media (min-width:768px){.nav-wrap{padding:0 32px}}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--c-ink-900)}
.brand:hover{color:var(--c-primary)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-100);color:var(--c-primary);
}
.brand-text{font-size:16px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-block;padding:9px 12px;
  font-size:16px;font-weight:600;color:var(--c-ink-700);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .28s cubic-bezier(.2,.7,.3,1);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--c-primary)}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{
  display:inline-flex;align-items:center;gap:9px;flex-shrink:0;
  height:44px;padding:0 22px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-size:15px;font-weight:600;
  transition:background-color .22s,transform .22s,box-shadow .22s;
}
.nav-cta:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.nav-cta i{font-size:12px;transition:transform .22s}
.nav-cta:hover i{transform:translateX(3px)}
.nav-cta-mobile{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:11px;margin-left:auto;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:background-color .2s;
}
.nav-toggle:hover{background:var(--c-primary-100)}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-ink-900);transition:transform .25s,opacity .25s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;margin-left:0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 24px;background:#fff;
    border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2);
    opacity:0;transform:translateY(-12px);pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-links a{padding:15px 4px;font-size:17px;border-bottom:1px solid var(--c-line)}
  .nav-links a::after{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .nav-links .nav-cta-mobile{
    display:inline-flex;align-items:center;justify-content:center;
    height:48px;margin-top:16px;border-radius:999px;
    background:var(--c-accent);color:#fff;font-weight:600;border-bottom:0;
  }
  .nav-links .nav-cta-mobile:hover{background:var(--c-accent-600);color:#fff}
}

/* ===== 倒计时条 ===== */
.countdown-bar{background:var(--c-primary);color:#fff}
.countdown-inner{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  min-height:54px;padding-top:9px;padding-bottom:9px;
}
.cd-label{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;letter-spacing:.02em;color:#fff;white-space:nowrap}
.cd-digits{display:flex;align-items:center;gap:8px;margin-left:auto}
.cd-unit{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-width:50px;padding:4px 8px;border-radius:8px;background:rgba(255,255,255,.12);
}
.cd-unit b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:18px;line-height:1.25;color:#fff;font-weight:700}
.cd-unit i{font-style:normal;font-size:11px;line-height:1.3;color:rgba(255,255,255,.72)}
.cd-unit.is-sec b{color:var(--c-highlight)}
.cd-link{font-size:13px;color:rgba(255,255,255,.86);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.cd-link:hover{color:#fff}
.cd-over{font-size:14px;font-weight:600;color:#fff;background:rgba(255,255,255,.16);padding:7px 16px;border-radius:999px}
@media (max-width:767px){
  .countdown-inner{gap:10px}
  .cd-digits{margin-left:0;width:100%;justify-content:space-between;gap:6px}
  .cd-unit{flex:1;min-width:0}
  .cd-unit.cd-d{display:none}
  .cd-link{display:none}
}

/* ===== Hero ===== */
.hero{position:relative;background:var(--c-surface);padding:52px 0 64px;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-190px;top:-170px;width:560px;height:560px;
  border:1.5px solid rgba(15,107,99,.10);border-radius:50%;pointer-events:none;
  box-shadow:0 0 0 46px rgba(15,107,99,.032),0 0 0 108px rgba(15,107,99,.018);
}
@media (min-width:1024px){.hero{padding:62px 0 84px}}
.hero-grid{position:relative;z-index:2}
.hero-copy{padding-right:0}
@media (min-width:1024px){.hero-copy{padding-right:40px}}
.hero-badge{
  display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.hero h1{font-size:clamp(28px,4.6vw,48px);line-height:1.18;letter-spacing:-.01em;margin:20px 0 18px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,var(--c-accent-soft) 62%);padding:0 2px}
.hero-sub{font-size:18px;line-height:1.75;color:var(--c-ink-500);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px}
.hero-trust li{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:999px;background:var(--c-bg);
  border:1px solid var(--c-line);font-size:13px;font-weight:600;color:var(--c-ink-700);
}
.hero-trust i{color:var(--c-success);font-size:12px}
.hero-visual{position:relative;margin-top:38px}
@media (min-width:1024px){.hero-visual{margin-top:0}}
.hero-image{
  border-radius:var(--r-lg);overflow:hidden;background:var(--c-primary-100);
  box-shadow:var(--sh-2);aspect-ratio:6/5;
}
.hero-image img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:relative;z-index:3;margin:-64px 18px 0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:20px 22px;
}
@media (min-width:768px){.float-card{margin:-72px 28px 0}}
.fc-metrics{display:flex;gap:26px}
.fc-metric{display:flex;flex-direction:column}
.fc-metric b{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;line-height:1.2;color:var(--c-primary)}
.fc-metric span{font-size:13px;color:var(--c-ink-500);margin-top:2px}
.fc-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13.5px;color:var(--c-ink-500)}

/* ===== 数据条 ===== */
.stat-strip{background:var(--c-ink-900);padding:38px 0}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px 18px}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr)}}
.stat-item{text-align:center}
.stat-num{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(26px,3.2vw,36px);font-weight:700;line-height:1.2;color:#fff}
.stat-label{display:block;margin-top:6px;font-size:14px;color:rgba(255,255,255,.62)}

/* ===== 通用板块 ===== */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-white{background:var(--c-surface)}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{font-size:clamp(23px,3.1vw,32px);line-height:1.3;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--c-ink-500);line-height:1.8}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}
.head-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.head-link i{font-size:12px;transition:transform .2s ease}
.head-link:hover i{transform:translateX(4px)}

/* ===== 卖点编号列表 ===== */
.feature-list{display:flex;flex-direction:column;gap:22px}
.feature-item{
  display:flex;gap:22px;align-items:flex-start;
  background:#fff;border:1px solid var(--c-line);border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);padding:26px 28px;box-shadow:var(--sh-1);
  transition:box-shadow .25s,transform .25s;
}
.feature-item:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
@media (min-width:1024px){
  .feature-item:nth-child(even){margin-left:48px}
}
.fi-num{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  width:52px;height:52px;border-radius:15px;background:var(--c-accent-soft);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:700;color:var(--c-accent-600);
}
.fi-body h3{font-size:20px;line-height:1.4;margin-bottom:8px}
.fi-body p{font-size:15.5px;line-height:1.85;color:var(--c-ink-500)}

/* ===== 图墙 ===== */
.wall{display:grid;grid-template-columns:repeat(12,1fr);gap:18px}
.wall-item{
  position:relative;grid-column:span 12;height:230px;border-radius:var(--r-md);
  overflow:hidden;background:var(--c-primary-100);box-shadow:var(--sh-1);
  transition:box-shadow .3s;
}
.wall-item:hover{box-shadow:var(--sh-2)}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1)}
.wall-item:hover img{transform:scale(1.04)}
.wall-item figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 18px 16px;
  background:linear-gradient(180deg,rgba(12,26,23,0) 0%,rgba(12,26,23,.82) 100%);
  transform:translateY(10px);opacity:0;
  transition:transform .35s cubic-bezier(.2,.7,.3,1),opacity .35s;
}
.wall-item:hover figcaption{transform:translateY(0);opacity:1}
.wall-item .tag{
  display:inline-block;margin-bottom:8px;padding:4px 10px;border-radius:6px;
  background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.wall-item h3{font-size:17px;color:#fff;line-height:1.4}
@media (hover:none){.wall-item figcaption{transform:none;opacity:1}}
@media (min-width:768px){
  .wi-a{grid-column:span 5;height:300px}
  .wi-b{grid-column:span 4;height:300px}
  .wi-c{grid-column:span 3;height:300px}
  .wi-d{grid-column:span 3;height:250px}
  .wi-e{grid-column:span 5;height:250px}
  .wi-f{grid-column:span 4;height:250px}
}
@media (max-width:767px){
  .wall{grid-template-columns:repeat(2,1fr);gap:12px}
  .wall-item{grid-column:auto;height:172px}
  .wall-item figcaption{padding:12px}
  .wall-item h3{font-size:14.5px}
}

/* ===== 最新信息 ===== */
.latest-list{display:flex;flex-direction:column;gap:18px}
.latest-hero{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .25s,transform .25s;
}
.latest-hero:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.lh-media{aspect-ratio:16/8;background:var(--c-primary-100);overflow:hidden}
.lh-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.latest-hero:hover .lh-media img{transform:scale(1.03)}
.lh-body{padding:24px 26px 26px}
.lh-body h3{font-size:22px;line-height:1.42;margin:12px 0 10px;color:var(--c-ink-900)}
.lh-body p{
  font-size:15px;line-height:1.8;color:var(--c-ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.lh-time{display:block;margin-top:14px;font-size:13px;color:var(--c-ink-500);font-family:var(--font-num)}
@media (min-width:768px){
  .latest-hero{display:grid;grid-template-columns:minmax(0,42%) minmax(0,58%)}
  .lh-media{aspect-ratio:auto;min-height:250px;height:100%}
  .lh-body{padding:30px 34px}
}
.latest-items{display:flex;flex-direction:column;gap:14px}
@media (min-width:900px){.latest-items{display:grid;grid-template-columns:1fr 1fr;gap:14px}}
.latest-items li a{
  display:flex;gap:16px;align-items:flex-start;height:100%;
  padding:14px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:box-shadow .25s,transform .25s,border-color .25s;
}
.latest-items li a:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-100)}
.li-thumb{width:118px;height:84px;border-radius:var(--r-sm);overflow:hidden;flex-shrink:0;background:var(--c-primary-100)}
.li-thumb img{width:100%;height:100%;object-fit:cover}
.li-text{min-width:0;flex:1}
.li-text h4{
  font-size:16.5px;line-height:1.5;color:var(--c-ink-900);margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.li-text p{
  font-size:13.5px;line-height:1.7;color:var(--c-ink-500);margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.li-meta{font-size:12.5px;color:var(--c-ink-500)}
.empty-state{background:var(--c-primary-100);border-radius:var(--r-lg);padding:54px 24px;text-align:center}
.empty-state i{display:block;font-size:30px;color:var(--c-primary);margin-bottom:12px}
.empty-state p{font-size:15px;color:var(--c-ink-500)}

/* ===== 提醒 CTA ===== */
.entry-box{background:var(--c-primary-100);border-radius:var(--r-lg);padding:34px 22px}
@media (min-width:768px){.entry-box{padding:52px 48px}}
.entry-copy h2{font-size:clamp(22px,2.7vw,30px);line-height:1.35;margin-bottom:14px}
.entry-copy p{font-size:15.5px;line-height:1.85;color:var(--c-ink-500);margin-bottom:22px;max-width:400px}
.entry-tags{display:flex;flex-direction:column;gap:10px}
.entry-tags li{display:flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;color:var(--c-primary)}
.entry-tags li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);flex-shrink:0}
.entry-form-wrap{margin-top:30px}
@media (min-width:1024px){.entry-form-wrap{margin-top:0}}
.entry-form{background:#fff;border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--sh-1)}
.entry-form .field{margin-bottom:16px}
.entry-form label{display:block;font-size:14px;font-weight:600;color:var(--c-ink-700);margin-bottom:7px}
.entry-form input,.entry-form select{
  width:100%;height:48px;padding:0 14px;color:var(--c-ink-900);
  border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;
  transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;appearance:none;
}
.entry-form select{
  padding-right:40px;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234A5C56' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;
}
.entry-form input::placeholder{color:#9AA8A3}
.entry-form input:focus,.entry-form select:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(15,107,99,.14)}
.form-note{margin-top:12px;font-size:12px;line-height:1.65;color:var(--c-ink-500);text-align:center}

/* ===== FAQ ===== */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;transition:box-shadow .25s,border-color .25s;
}
.faq-item.is-open{box-shadow:var(--sh-1);border-color:var(--c-primary-100)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;
  font-size:17px;font-weight:600;line-height:1.55;color:var(--c-ink-900);
  transition:color .2s;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q i{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-100);color:var(--c-primary);font-size:11px;
  transition:transform .28s,background-color .28s,color .28s;
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--c-accent);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{
  margin:0 22px 20px;padding:15px 18px;
  background:var(--c-primary-100);border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:15.5px;line-height:1.85;color:var(--c-ink-700);
}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink-900);color:rgba(255,255,255,.72);padding:58px 0 0;margin-top:0}
.footer-grid{padding-bottom:42px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.1);color:#7FD8CE}
.footer-brand p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.62);max-width:300px}
.footer-icons{display:flex;gap:10px;margin-top:18px}
.footer-icons a{
  width:38px;height:38px;border-radius:11px;background:rgba(255,255,255,.08);
  display:inline-flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.8);font-size:14px;
  transition:background-color .22s,color .22s,transform .22s;
}
.footer-icons a:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px)}
.site-footer h3{font-size:15px;font-weight:600;letter-spacing:.02em;color:#fff;margin-bottom:16px}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{font-size:14.5px;color:rgba(255,255,255,.7)}
.site-footer ul a:hover{color:#fff}
.footer-contact li{font-size:14px;line-height:1.75;color:rgba(255,255,255,.66);margin-bottom:8px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:rgba(255,255,255,.5)}
@media (max-width:767px){
  .footer-brand,.site-footer .cell{margin-bottom:28px}
}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:70;
  width:44px;height:44px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);opacity:0;pointer-events:none;transform:translateY(10px);
  transition:opacity .28s,transform .28s,background-color .22s;
}
.to-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-600)}
@media (min-width:768px){.to-top{right:32px;bottom:32px}}

/* roulang page: category1 */
:root{
  --c-primary:#0F6B63;
  --c-primary-600:#0B564F;
  --c-primary-100:#E3F1EE;
  --c-accent:#F97316;
  --c-accent-600:#E0630A;
  --c-accent-soft:#FFF1E4;
  --c-highlight:#FF6B8A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-ink-900:#0C1A17;
  --c-ink-700:#23342F;
  --c-ink-500:#4A5C56;
  --c-line:#DFE5E0;
  --c-success:#2E9E6B;
  --c-warn:#D9822B;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --sh-1:0 2px 8px rgba(12,26,23,.06);
  --sh-2:0 16px 44px rgba(12,26,23,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SF Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-ink-700);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease;}
a:hover{color:var(--c-primary-600);}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%;}
@media (min-width:768px){.container{padding:0 32px;}}
@media (min-width:1280px){.container{max-width:1240px;}}

/* ============ 倒计时条 ============ */
.countdown-bar{
  background:var(--c-primary);
  color:#fff;
  min-height:48px;
  display:flex;
  align-items:center;
  position:relative;
  z-index:60;
}
.countdown-bar .container{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  padding-top:8px;
  padding-bottom:8px;
}
.cd-label{
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
  background:rgba(255,255,255,.14);
  border-radius:999px;
  padding:4px 12px;
  white-space:nowrap;
}
.cd-clock{display:flex;align-items:center;gap:8px;}
.cd-unit{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  background:rgba(255,255,255,.12);
  border-radius:var(--r-sm);
  min-width:52px;
  padding:4px 8px;
  text-align:center;
  line-height:1.25;
}
.cd-unit b{display:block;font-size:17px;font-weight:700;}
.cd-unit span{display:block;font-size:11px;opacity:.72;letter-spacing:.06em;}
.cd-unit.is-sec b{color:var(--c-highlight);}
.cd-note{margin-left:auto;font-size:13px;color:rgba(255,255,255,.86);white-space:nowrap;}
.cd-note a{color:#fff;border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:1px;}
.cd-note a:hover{color:#fff;border-color:#fff;}
.cd-ended{font-size:14px;font-weight:600;background:rgba(255,255,255,.16);padding:5px 14px;border-radius:999px;}
@media (max-width:767px){
  .cd-note{margin-left:0;width:100%;}
  .cd-unit{min-width:46px;}
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(247,246,241,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s ease,background-color .28s ease,border-color .28s ease;
  backdrop-filter:saturate(120%) blur(6px);
}
.site-header.is-stuck{
  background:#fff;
  box-shadow:0 6px 22px rgba(12,26,23,.08);
  border-bottom-color:var(--c-line);
}
.nav-wrap{
  max-width:1240px;
  margin:0 auto;
  padding:14px 20px;
  display:flex;
  align-items:center;
  gap:24px;
}
@media (min-width:768px){.nav-wrap{padding:16px 32px;}}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink-900);flex:0 0 auto;}
.brand:hover{color:var(--c-primary);}
.brand-mark{color:var(--c-primary);display:flex;align-items:center;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;}
.nav-links a{
  position:relative;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink-700);
  padding:8px 12px;
  border-radius:var(--r-sm);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .26s ease;
  border-radius:2px;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  box-shadow:var(--sh-1);
  white-space:nowrap;
  transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease;
}
.nav-cta:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.nav-cta:active{transform:translateY(0);}
.nav-cta-mobile{display:none;}
.nav-toggle{
  width:44px;height:44px;
  display:none;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:#fff;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-ink-900);border-radius:2px;transition:transform .24s ease,opacity .24s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
@media (max-width:1023px){
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(320px,86vw);
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:88px 20px 28px;
    margin:0;
    box-shadow:-14px 0 40px rgba(12,26,23,.16);
    transform:translateX(105%);
    transition:transform .3s cubic-bezier(.2,.7,.3,1);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{font-size:17px;padding:14px 12px;border-radius:var(--r-sm);}
  .nav-links a::after{display:none;}
  .nav-links a:hover,.nav-links a.active{background:var(--c-primary-100);}
  .nav-cta-mobile{
    display:inline-flex;
    justify-content:center;
    align-items:center;
    margin-top:auto;
    background:var(--c-accent);
    color:#fff !important;
    border-radius:999px;
    height:48px;
    font-weight:600;
  }
  .nav-cta-mobile:hover{background:var(--c-accent-600);}
  .nav-cta{display:none;}
  .nav-toggle{display:flex;order:3;margin-left:auto;}
  .brand{order:1;}
}

/* ============ 紧凑 Hero ============ */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--c-primary-100);
  border-bottom:1px solid var(--c-line);
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center right;
  opacity:.16;
  pointer-events:none;
}
.cat-hero::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:60px;
  background:linear-gradient(to top,var(--c-bg),transparent);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;padding-top:34px;padding-bottom:44px;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--c-ink-500);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--c-ink-500);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb i{font-size:10px;opacity:.6;}
.cat-hero h1{
  font-size:clamp(28px,4.6vw,44px);
  line-height:1.2;
  margin-bottom:14px;
  max-width:880px;
}
.cat-hero h1 em{
  font-style:normal;
  background:linear-gradient(transparent 62%,var(--c-accent-soft) 62%);
  padding:0 2px;
}
.cat-hero .hero-lead{
  font-size:17px;
  color:var(--c-ink-700);
  max-width:720px;
  margin-bottom:22px;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
  line-height:1;
  padding:7px 12px;
  border-radius:6px;
  background:var(--c-primary-100);
  color:var(--c-primary);
}
.badge.accent{background:var(--c-accent-soft);color:var(--c-accent-600);}
.badge.pink{background:rgba(255,107,138,.14);color:#D8446A;}
.badge.plain{background:#fff;color:var(--c-ink-500);border:1px solid var(--c-line);}

/* ============ 锚点标签条 ============ */
.anchor-bar{
  position:sticky;
  top:76px;
  z-index:40;
  background:rgba(247,246,241,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(6px);
}
.anchor-scroll{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:12px 20px;
  scrollbar-width:none;
}
.anchor-scroll::-webkit-scrollbar{display:none;}
@media (min-width:768px){.anchor-scroll{padding:12px 32px;}}
.anchor-scroll a{
  flex:0 0 auto;
  font-size:14px;
  font-weight:600;
  padding:8px 16px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink-700);
  white-space:nowrap;
  transition:all .22s ease;
}
.anchor-scroll a:hover{border-color:var(--c-primary);color:var(--c-primary);}
.anchor-scroll a.is-current{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:48px 0;}
@media (min-width:768px){.section{padding:64px 0;}}
@media (min-width:1024px){.section{padding:88px 0;}}
.section.surface{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-primary);
  background:var(--c-primary-100);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(23px,3.2vw,33px);line-height:1.28;margin-bottom:12px;}
.section-head p{color:var(--c-ink-500);font-size:16px;}

/* ============ 卡片栅格 ============ */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){
  .card-grid{grid-template-columns:repeat(6,1fr);}
  .card-grid .card.wide{grid-column:span 3;}
  .card-grid .card.slim{grid-column:span 2;}
}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.3,1),box-shadow .3s ease,border-color .3s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CBD6D0;}
.card-media{position:relative;overflow:hidden;background:var(--c-primary-100);}
.card.wide .card-media{aspect-ratio:16/9;}
.card.slim .card-media{aspect-ratio:4/3;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s cubic-bezier(.2,.7,.3,1);}
.card:hover .card-media img{transform:scale(1.05);}
.card-media .float-tag{
  position:absolute;
  left:14px;top:14px;
  background:rgba(255,255,255,.94);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
  padding:5px 11px;
  border-radius:6px;
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:20px;line-height:1.4;margin-bottom:10px;}
.card-body .card-desc{font-size:15px;color:var(--c-ink-500);margin-bottom:16px;}
.point-list{margin-bottom:20px;}
.point-list li{
  position:relative;
  padding-left:22px;
  font-size:14.5px;
  color:var(--c-ink-700);
  margin-bottom:9px;
  line-height:1.7;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--c-accent-soft);
  border:2px solid var(--c-accent);
}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.card-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-primary);
}
.card-link i{transition:transform .24s ease;font-size:12px;}
.card-link:hover i{transform:translateX(4px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:15.5px;
  font-weight:600;
  border:1.5px solid transparent;
  transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-600);border-color:var(--c-primary-600);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);}}
.step{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);
  padding:22px 20px;
  box-shadow:var(--sh-1);
  transition:box-shadow .28s ease,transform .28s ease;
}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-3px);}
.step .num{
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
  font-size:28px;
  font-weight:700;
  color:var(--c-accent);
  line-height:1;
  margin-bottom:12px;
  display:block;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--c-ink-500);line-height:1.75;}

/* ============ 检查清单 ============ */
.check-list{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:768px){.check-list{grid-template-columns:repeat(2,1fr);}}
.check-item{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:18px 20px;
  transition:border-color .24s ease,background-color .24s ease;
}
.check-item:hover{border-color:#C6D6D0;background:#FCFDFC;}
.check-item i{
  color:var(--c-success);
  font-size:18px;
  line-height:1.6;
  flex:0 0 auto;
}
.check-item strong{display:block;font-size:16px;color:var(--c-ink-900);margin-bottom:4px;}
.check-item span{font-size:14.5px;color:var(--c-ink-500);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:box-shadow .26s ease,border-color .26s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item.is-open{border-color:#C6D6D0;box-shadow:var(--sh-1);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:18px 20px;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-ink-900);
  line-height:1.6;
}
.faq-q .icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:50%;
  background:var(--c-primary-100);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  transition:transform .26s ease,background-color .26s ease,color .26s ease;
}
.faq-item.is-open .faq-q .icon{background:var(--c-accent);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s cubic-bezier(.2,.7,.3,1);
  background:var(--c-primary-100);
  border-left:3px solid var(--c-accent);
}
.faq-a p{padding:16px 20px;font-size:15.5px;color:var(--c-ink-700);line-height:1.85;}

/* ============ CTA 表单 ============ */
.cta-block{
  background:var(--c-primary-100);
  border-radius:var(--r-lg);
  padding:32px 24px;
  display:grid;
  gap:28px;
  border:1px solid #CFE3DF;
}
@media (min-width:900px){
  .cta-block{grid-template-columns:1fr 1fr;padding:46px 44px;gap:44px;align-items:center;}
}
.cta-block h2{font-size:clamp(22px,3vw,30px);line-height:1.3;margin-bottom:12px;}
.cta-block .cta-desc{font-size:15.5px;color:var(--c-ink-700);margin-bottom:18px;}
.cta-tags{display:flex;flex-wrap:wrap;gap:10px;}
.cta-form{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink-700);margin-bottom:7px;}
.field input,
.field select{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:#FDFDFC;
  font-size:15px;
  transition:border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-ink-500) 50%),linear-gradient(135deg,var(--c-ink-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input:focus,
.field select:focus{
  outline:none;
  border-color:var(--c-primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(15,107,99,.14);
}
.form-note{font-size:12.5px;color:var(--c-ink-500);margin-top:12px;line-height:1.7;}
.form-msg{
  display:none;
  margin-top:12px;
  font-size:14px;
  font-weight:600;
  color:var(--c-success);
  background:rgba(46,158,107,.1);
  border-radius:var(--r-sm);
  padding:10px 14px;
}
.form-msg.is-show{display:block;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink-900);
  color:#B9C7C2;
  padding:56px 0 0;
  margin-top:0;
}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.site-footer .brand{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{color:#5FCFC2;}
.site-footer .brand-text{color:#fff;}
.footer-grid{padding-bottom:36px;}
.footer-grid .cell{margin-bottom:28px;}
.footer-brand p{font-size:14.5px;color:#9FB0AB;line-height:1.8;margin:14px 0 18px;max-width:320px;}
.footer-icons{display:flex;gap:10px;}
.footer-icons a{
  width:38px;height:38px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.08);
  color:#DCE7E4;
  display:flex;align-items:center;justify-content:center;
  transition:background-color .22s ease,color .22s ease,transform .22s ease;
}
.footer-icons a:hover{background:var(--c-primary);color:#fff;transform:translateY(-2px);}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul li a{font-size:14.5px;color:#9FB0AB;transition:color .2s ease,padding-left .2s ease;}
.site-footer ul li a:hover{color:#fff;padding-left:4px;}
.footer-contact li{font-size:14.5px;color:#9FB0AB;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
}
.footer-bottom p{font-size:14px;color:#7E908B;}
@media (min-width:768px){
  .site-footer{padding-top:68px;}
  .footer-grid .cell{margin-bottom:0;}
}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;
  right:20px;
  bottom:24px;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background-color .22s ease;
  z-index:45;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-600);color:#fff;}

/* Foundation 覆盖 */
.button,.callout,.accordion{border-radius:var(--r-md);}
.callout{background:var(--c-primary-100);border-left:4px solid var(--c-accent);color:var(--c-ink-700);}
.reveal{border-radius:var(--r-lg);}

/* roulang page: article */
:root{
  --c-primary:#0F6B63;
  --c-primary-600:#0B564F;
  --c-primary-100:#E3F1EE;
  --c-accent:#F97316;
  --c-accent-600:#D9600C;
  --c-accent-soft:#FFF1E4;
  --c-highlight:#FF6B8A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-ink-900:#0C1A17;
  --c-ink-700:#23342F;
  --c-ink-500:#4A5C56;
  --c-line:#DFE5E0;
  --c-success:#2E9E6B;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --sh-1:0 2px 8px rgba(12,26,23,.06);
  --sh-2:0 16px 44px rgba(12,26,23,.12);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:ui-monospace,"DIN Alternate","SF Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-700);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink-900);line-height:1.3;font-weight:700}
p{margin:0 0 1em}
a{color:var(--c-primary);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
ul,ol{margin:0 0 1em;padding-left:1.2em}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
.section{padding:48px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:88px 0}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s ease,border-color .28s ease,background-color .28s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);border-bottom-color:var(--c-line)}
.nav-wrap{
  max-width:1200px;margin:0 auto;padding:0 20px;
  min-height:72px;display:flex;align-items:center;gap:18px;
}
@media (min-width:768px){.nav-wrap{padding:0 32px}}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink-900);font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap}
.brand:hover{color:var(--c-primary)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--c-primary-100);color:var(--c-primary);
  display:grid;place-items:center;
}
.brand-text{max-width:200px;overflow:hidden;text-overflow:ellipsis}
@media (min-width:1024px){.brand-text{max-width:none;font-size:18px}}
.nav-links{
  position:fixed;top:72px;right:0;width:min(320px,84vw);
  height:calc(100vh - 72px);
  display:flex;flex-direction:column;gap:4px;
  margin:0;padding:18px;
  background:var(--c-surface);
  box-shadow:-14px 0 36px rgba(12,26,23,.14);
  transform:translateX(105%);
  transition:transform .32s cubic-bezier(.2,.7,.3,1);
  overflow-y:auto;z-index:79;
}
.nav-links.open{transform:translateX(0)}
.nav-links a{
  position:relative;display:block;
  padding:12px 14px;border-radius:10px;
  font-size:16px;font-weight:600;color:var(--c-ink-700);
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-100)}
.nav-links a.active{color:var(--c-primary);background:var(--c-primary-100)}
.nav-links a.nav-cta-mobile{
  margin-top:auto;text-align:center;
  background:var(--c-primary);color:#fff;
  border-radius:999px;padding:14px 18px;font-weight:700;
}
.nav-links a.nav-cta-mobile:hover{background:var(--c-primary-600);color:#fff}
.nav-cta{
  display:none;align-items:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  background:var(--c-primary);color:#fff;font-weight:700;font-size:15px;
  box-shadow:var(--sh-1);white-space:nowrap;margin-left:auto;
}
.nav-cta i{font-size:13px;transition:transform .22s ease}
.nav-cta:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.nav-cta:hover i{transform:translateX(3px)}
.nav-cta:active{transform:translateY(0)}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;flex:0 0 44px;
  display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  background:var(--c-primary-100);border:0;border-radius:12px;cursor:pointer;
  transition:background-color .22s ease;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (min-width:1024px){
  .nav-links{
    position:static;width:auto;height:auto;flex-direction:row;align-items:center;
    gap:2px;margin-left:auto;padding:0;background:transparent;
    box-shadow:none;transform:none;overflow:visible;
  }
  .nav-links a{padding:10px 14px;font-size:16px}
  .nav-links a::after{
    content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
    background:var(--c-primary);border-radius:2px;
    transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
  }
  .nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
  .nav-links a.nav-cta-mobile{display:none}
  .nav-cta{display:inline-flex}
  .nav-toggle{display:none}
}

/* ============ 倒计时条 ============ */
.countdown-bar{background:var(--c-primary-600);color:#fff}
.cd-inner{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  min-height:52px;padding-top:9px;padding-bottom:9px;
}
.cd-label{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;letter-spacing:.02em}
.cd-label i{color:var(--c-accent)}
.cd-clock{display:flex;gap:8px;flex-wrap:wrap}
.cd-unit{
  display:inline-flex;align-items:baseline;gap:4px;
  background:rgba(255,255,255,.12);border-radius:var(--r-sm);
  padding:3px 10px;font-variant-numeric:tabular-nums;
}
.cd-unit b{font-family:var(--font-num);font-size:17px;font-weight:700;letter-spacing:.04em}
.cd-unit i{font-style:normal;font-size:12px;opacity:.72}
.cd-unit.is-second b{color:var(--c-highlight)}
.cd-link{margin-left:auto;font-size:13px;color:rgba(255,255,255,.86);white-space:nowrap}
.cd-link:hover{color:#fff;text-decoration:underline}
.cd-done{font-size:14px;font-weight:600;background:rgba(255,255,255,.14);border-radius:var(--r-sm);padding:4px 12px}

/* ============ 面包屑 ============ */
.crumb{padding:22px 0 0;font-size:14px;color:var(--c-ink-500)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px;list-style:none;margin:0;padding:0}
.crumb li{display:inline-flex;align-items:center;gap:6px}
.crumb li+li::before{content:"/";color:var(--c-line)}
.crumb a{color:var(--c-ink-500)}
.crumb a:hover{color:var(--c-primary)}
.crumb em{font-style:normal;color:var(--c-ink-900);font-weight:600;max-width:52ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:inline-block;vertical-align:bottom}
@media (max-width:520px){.crumb em{max-width:24ch}}

/* ============ 文章布局 ============ */
.post-shell{padding-bottom:72px}
.post-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-top:26px}
@media (min-width:1024px){
  .post-grid{grid-template-columns:minmax(0,1fr) 296px;gap:48px;padding-top:34px}
}
.post-main{min-width:0;max-width:820px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;line-height:1;
  padding:7px 11px;border-radius:6px;
}
.badge-primary{background:var(--c-primary-100);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent-600)}
.badge-pink{background:#FFEFF3;color:#C93A5C}
.post-head h1{
  margin:16px 0 0;
  font-size:clamp(26px,4vw,40px);
  line-height:1.24;letter-spacing:-.01em;
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;padding-bottom:20px;
  border-bottom:1px solid var(--c-line);
  font-size:14px;color:var(--c-ink-500);
}
.post-meta .dot{color:var(--c-line)}
.post-meta i{color:var(--c-primary);margin-right:4px}
.post-lede{
  margin-top:22px;padding:16px 20px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-left:4px solid var(--c-accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:15.5px;color:var(--c-ink-700);
}

/* ============ 正文排版 ============ */
.article-body{padding-top:30px;font-size:17px;line-height:1.9;color:var(--c-ink-700)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.4em}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);line-height:1.35;color:var(--c-ink-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.article-body h3{margin:30px 0 12px;font-size:20px;color:var(--c-primary)}
.article-body h4{margin:22px 0 10px;font-size:17px;color:var(--c-ink-900)}
.article-body a{color:var(--c-primary);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent-600)}
.article-body img{border-radius:var(--r-md);margin:26px auto;box-shadow:var(--sh-1)}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;
  background:var(--c-primary-100);
  border-left:4px solid var(--c-accent);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-ink-700);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.4em}
.article-body li{margin-bottom:.55em}
.article-body li::marker{color:var(--c-primary);font-weight:700}
.article-body code{
  font-family:var(--font-num);font-size:.92em;
  background:var(--c-primary-100);color:var(--c-primary-600);
  padding:2px 7px;border-radius:6px;
}
.article-body pre{
  background:var(--c-ink-900);color:#E7F3F0;
  padding:18px 20px;border-radius:var(--r-md);overflow-x:auto;
  font-family:var(--font-num);font-size:14.5px;line-height:1.7;margin:24px 0;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--c-line);border-radius:var(--r-md);
  overflow:hidden;margin:26px 0;font-size:15.5px;
}
.article-body th{background:var(--c-primary-100);color:var(--c-ink-900);font-weight:700}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--c-line);text-align:left}
.article-body tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:34px 0}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:8px;text-align:center;font-size:13.5px;color:var(--c-ink-500)}

/* ============ 空态 ============ */
.empty-state{
  margin-top:18px;padding:48px 24px;text-align:center;
  background:var(--c-primary-100);border-radius:var(--r-lg);
}
.empty-state i{font-size:30px;color:var(--c-primary)}
.empty-state p{margin:14px 0 20px;font-size:17px;font-weight:600;color:var(--c-ink-900)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;
  font-weight:700;font-size:15.5px;border:1.5px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
}
.btn i{font-size:13px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1)}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-600);transform:translateY(-2px)}
.btn-block{width:100%}

/* ============ 标签 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:24px;border-top:1px solid var(--c-line)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:999px;
  background:var(--c-primary-100);color:var(--c-primary-600);
  font-size:13.5px;font-weight:600;
}
.tag:hover{background:var(--c-primary);color:#fff}
.tag-label{font-size:14px;color:var(--c-ink-500);align-self:center;margin-right:2px}

/* ============ 侧栏 ============ */
.post-side{min-width:0}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.side-card h2{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px}
.side-card h2 i{color:var(--c-accent)}
.side-sticky{position:sticky;top:96px}
.toc-list{list-style:none;margin:0;padding:0;max-height:340px;overflow-y:auto}
.toc-list li{margin-bottom:2px}
.toc-list a{
  display:block;padding:8px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--c-ink-700);border-left:3px solid transparent;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover,.toc-list a.is-current{background:var(--c-primary-100);color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-list li.lv3 a{padding-left:24px;font-size:13.5px}
.toc-hint{font-size:13.5px;color:var(--c-ink-500);margin:0}
.quick-list{list-style:none;margin:0;padding:0}
.quick-list li+li{border-top:1px solid var(--c-line)}
.quick-list a{
  display:flex;align-items:center;gap:10px;
  padding:11px 2px;font-size:15px;font-weight:600;color:var(--c-ink-700);
}
.quick-list a i{color:var(--c-primary);font-size:13px}
.quick-list a:hover{color:var(--c-primary);padding-left:6px}
.side-banner{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  min-height:200px;display:flex;align-items:flex-end;padding:20px;
  background-image:linear-gradient(180deg,rgba(12,26,23,.05),rgba(12,26,23,.78)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;
}
.side-banner h2{color:#fff;font-size:17px;margin-bottom:6px}
.side-banner p{font-size:13.5px;color:rgba(255,255,255,.86);margin:0 0 12px}
.side-banner .btn{height:40px;padding:0 18px;font-size:14px}
@media (max-width:1023px){.side-sticky{position:static}}

/* ============ 继续阅读 ============ */
.read-next{padding-top:8px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,3vw,30px)}
.section-head p{margin:8px 0 0;color:var(--c-ink-500);font-size:15px}
.link-more{font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{gap:10px}
.read-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:700px){.read-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.read-grid{grid-template-columns:1.4fr 1fr 1fr}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#CFE0DB}
.post-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-100)}
.post-card.feature .thumb{aspect-ratio:16/9}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1)}
.post-card:hover .thumb img{transform:scale(1.05)}
.post-card .thumb .badge{position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94)}
.post-card .card-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.post-card h3{font-size:18px;line-height:1.45}
.post-card.feature h3{font-size:21px}
.post-card h3 a{color:var(--c-ink-900)}
.post-card h3 a:hover{color:var(--c-primary)}
.post-card p{margin:10px 0 16px;font-size:14.5px;color:var(--c-ink-500);line-height:1.75}
.post-card .card-foot{margin-top:auto;font-size:13px;color:var(--c-ink-500);display:flex;align-items:center;gap:8px}
.post-card .card-foot .dot{color:var(--c-line)}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;
  transition:box-shadow .24s ease,border-color .24s ease;
}
.faq-item:hover{border-color:#CFE0DB}
.faq-item[open]{border-left:3px solid var(--c-accent);box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:17px 20px;font-size:17px;font-weight:600;color:var(--c-ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-family:var(--font-num);font-size:22px;line-height:1;
  color:var(--c-primary);flex:0 0 auto;transition:transform .24s ease;
}
.faq-item[open] summary::after{content:"−"}
.faq-item .faq-body{
  padding:2px 20px 20px;background:var(--c-primary-100);
  font-size:15.5px;color:var(--c-ink-700);
}
.faq-item .faq-body p:last-child{margin-bottom:0}

/* ============ CTA 表单 ============ */
.cta-panel{
  background:var(--c-primary-100);border-radius:var(--r-lg);
  padding:32px 24px;
  display:grid;grid-template-columns:1fr;gap:28px;
}
@media (min-width:900px){.cta-panel{grid-template-columns:1fr 1fr;padding:44px;gap:40px;align-items:center}}
.cta-panel h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px}
.cta-panel .cta-desc{margin:0 0 18px;color:var(--c-ink-700);font-size:15.5px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--c-surface);border-radius:999px;padding:8px 14px;
  font-size:13.5px;font-weight:600;color:var(--c-primary-600);box-shadow:var(--sh-1);
}
.chip i{color:var(--c-accent)}
.signup-form{background:var(--c-surface);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink-700);margin-bottom:6px}
.field input,.field select{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:#FCFCFA;color:var(--c-ink-900);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);background:#fff;
  box-shadow:0 0 0 3px rgba(15,107,99,.14);
}
.form-note{margin:12px 0 0;font-size:12.5px;color:var(--c-ink-500);line-height:1.7}
.form-msg{margin:12px 0 0;font-size:14px;font-weight:600;color:var(--c-success);display:none}
.form-msg.show{display:block}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink-900);color:#B9C8C5;margin-top:24px;padding:56px 0 24px}
.site-footer .footer-grid{row-gap:32px}
.site-footer .brand{color:#fff;font-size:17px;margin-bottom:14px}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-mark{background:rgba(255,255,255,.12);color:#7FD6C9}
.site-footer h3{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB2AE;margin:0}
.footer-brand p{max-width:32ch}
.footer-icons{display:flex;gap:10px;margin-top:18px}
.footer-icons a{
  width:38px;height:38px;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.08);color:#CFDEDA;font-size:15px;
}
.footer-icons a:hover{background:var(--c-primary);color:#fff}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{color:#B9C8C5;font-size:14.5px}
.site-footer ul a:hover{color:#fff}
.footer-contact li{font-size:14.5px;color:#B9C8C5;line-height:1.75}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-bottom p{font-size:13.5px;color:#8DA09C}

/* ============ 返回顶部 ============ */
.to-top{
  position:fixed;right:18px;bottom:22px;z-index:70;
  width:44px;height:44px;border-radius:50%;border:0;
  background:var(--c-primary);color:#fff;font-size:15px;
  display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--sh-2);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s ease,transform .28s ease,background-color .22s ease,visibility .28s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-600)}
@media (min-width:1024px){.to-top{right:32px;bottom:32px}}

/* Foundation 覆盖 */
.callout{border-radius:var(--r-md);border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink-700)}
.button{background:var(--c-primary);border-radius:999px;font-family:inherit}
.button:hover{background:var(--c-primary-600)}
.grid-margin-x>.cell{padding-left:.9375rem;padding-right:.9375rem}

/* roulang page: category2 */
:root{
  --c-primary:#0F6B63;
  --c-primary-600:#0B564F;
  --c-primary-100:#E3F1EE;
  --c-accent:#F97316;
  --c-accent-600:#DD6107;
  --c-accent-soft:#FFF1E4;
  --c-highlight:#FF6B8A;
  --c-bg:#F7F6F1;
  --c-surface:#FFFFFF;
  --c-ink-900:#0C1A17;
  --c-ink-700:#23342F;
  --c-ink-500:#4A5C56;
  --c-line:#DFE5E0;
  --c-success:#2E9E6B;
  --c-warn:#D9822B;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --sh-1:0 2px 8px rgba(12,26,23,.06);
  --sh-2:0 16px 44px rgba(12,26,23,.12);
  --ff-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --ff-num:ui-monospace,"DIN Alternate","SF Mono",monospace;
  --h-header:72px;
  --tr:.28s cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-700);
  background:var(--c-bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--tr),background-color var(--tr),border-color var(--tr);}
a:hover{color:var(--c-primary-600);}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0 0 .5em;color:var(--c-ink-900);font-weight:700;line-height:1.28;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;padding:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.mono{font-family:var(--ff-num);font-variant-numeric:tabular-nums;}

/* ============ header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow var(--tr);
}
.site-header.is-stuck{box-shadow:0 8px 26px rgba(12,26,23,.09);}
.nav-wrap{
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  height:var(--h-header);
  display:flex;
  align-items:center;
  gap:18px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--c-ink-900);
  font-weight:700;
  letter-spacing:.01em;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}
.brand-text{font-size:17px;white-space:nowrap;}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:16px;
  font-weight:600;
  color:var(--c-ink-700);
  border-radius:var(--r-sm);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:6px;
  height:2px;
  background:var(--c-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--tr);
  border-radius:2px;
}
.nav-links a:hover{color:var(--c-primary);background:var(--c-primary-100);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-cta{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:999px;
  background:var(--c-primary);
  color:#fff;
  font-weight:600;
  font-size:15px;
  box-shadow:var(--sh-1);
  transition:transform var(--tr),background-color var(--tr),box-shadow var(--tr);
}
.nav-cta i{font-size:13px;transition:transform var(--tr);}
.nav-cta:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.nav-cta:hover i{transform:translateX(3px);}
.nav-cta:active{transform:translateY(0);}
.nav-cta-mobile{display:none;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--c-line);
  border-radius:12px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  background:#fff;
}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-ink-900);border-radius:2px;transition:transform var(--tr),opacity var(--tr);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ page hero ============ */
.page-hero{
  position:relative;
  background-color:var(--c-primary);
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center right;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(11,86,79,.94) 0%,rgba(11,86,79,.86) 48%,rgba(15,107,99,.55) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:52px;padding-bottom:56px;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;line-height:1.7;color:rgba(255,255,255,.78);
  margin-bottom:18px;
}
.crumb a{color:rgba(255,255,255,.9);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb span.sep{opacity:.6;}
.page-hero h1{
  color:#fff;
  font-size:clamp(28px,4.4vw,44px);
  line-height:1.2;
  max-width:860px;
  margin-bottom:16px;
}
.page-hero h1 em{font-style:normal;background:linear-gradient(transparent 62%,rgba(249,115,22,.55) 62%);}
.page-hero .hero-sub{
  max-width:720px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.9);
  margin-bottom:22px;
}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-chips span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;
}

/* ============ banner ============ */
.banner-band{padding:56px 0 0;background:var(--c-bg);}
.banner{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  border:1px solid var(--c-line);
  background:var(--c-primary-100);
}
.banner img{width:100%;height:clamp(200px,30vw,340px);object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.banner:hover img{transform:scale(1.03);}
.banner-caption{
  position:absolute;left:0;right:0;bottom:0;
  padding:26px 26px 22px;
  background:linear-gradient(180deg,rgba(12,26,23,0) 0%,rgba(12,26,23,.78) 68%,rgba(12,26,23,.9) 100%);
  color:#fff;
}
.banner-caption h2{color:#fff;font-size:clamp(19px,2.4vw,24px);margin-bottom:6px;}
.banner-caption p{margin:0;font-size:14px;color:rgba(255,255,255,.85);}

/* ============ doc layout ============ */
.section{padding:72px 0;}
.section-surface{background:var(--c-surface);}
.doc-layout{
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:40px;
  align-items:start;
}
.toc{
  position:sticky;
  top:calc(var(--h-header) + 24px);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:22px 18px;
  box-shadow:var(--sh-1);
}
.toc h2{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--c-ink-500);
  text-transform:uppercase;
  font-weight:600;
  margin-bottom:14px;
}
.toc ol{counter-reset:toc;}
.toc a{
  display:block;
  padding:10px 12px;
  font-size:14px;
  line-height:1.5;
  color:var(--c-ink-700);
  border-left:3px solid transparent;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  transition:all var(--tr);
}
.toc a:hover{background:var(--c-primary-100);color:var(--c-primary);border-left-color:var(--c-primary);}
.toc a.current{background:var(--c-primary-100);color:var(--c-primary);border-left-color:var(--c-primary);font-weight:600;}
.toc-note{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  line-height:1.7;
  color:var(--c-ink-500);
}

.doc-head{margin-bottom:26px;}
.doc-head .eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;
  background:var(--c-accent-soft);color:var(--c-accent-600);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  margin-bottom:12px;
}
.doc-head h2{font-size:clamp(22px,3vw,30px);margin-bottom:10px;}
.doc-head p{color:var(--c-ink-500);max-width:760px;margin:0;}

.entry-list{display:flex;flex-direction:column;gap:16px;}
.entry-card{
  display:grid;
  grid-template-columns:60px minmax(0,1fr);
  gap:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
  scroll-margin-top:calc(var(--h-header) + 20px);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#C6DAD4;}
.entry-no{
  width:56px;height:56px;
  border-radius:var(--r-md);
  background:var(--c-accent-soft);
  color:var(--c-accent-600);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--ff-num);
  font-variant-numeric:tabular-nums;
  font-size:20px;font-weight:700;
}
.entry-body h3{font-size:20px;margin-bottom:8px;}
.entry-body h3 i{color:var(--c-primary);font-size:16px;margin-right:8px;}
.entry-body p{margin:0 0 12px;font-size:15.5px;color:var(--c-ink-700);}
.entry-tags{display:flex;flex-wrap:wrap;gap:8px;}
.entry-tags li{
  padding:4px 12px;
  border-radius:999px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.02em;
}
.entry-tags li.warm{background:var(--c-accent-soft);color:var(--c-accent-600);}

/* update panel */
.update-panel{
  margin-top:28px;
  padding:24px 26px;
  border-radius:var(--r-lg);
  background:var(--c-primary-100);
  border:1px solid #CDE4DF;
}
.update-panel h3{font-size:18px;margin-bottom:14px;}
.update-panel ul{display:flex;flex-direction:column;gap:12px;}
.update-panel li{
  display:flex;gap:14px;
  align-items:flex-start;
  font-size:15px;
  color:var(--c-ink-700);
}
.update-panel .u-date{
  flex:0 0 auto;
  min-width:64px;
  font-family:var(--ff-num);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  color:var(--c-primary);
  font-size:14px;
  padding-top:2px;
}

/* ============ accordion ============ */
.acc-list{max-width:900px;margin:0 auto;}
.acc-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow var(--tr),border-color var(--tr);
}
.acc-item:hover{border-color:#C6DAD4;}
.acc-item.open{box-shadow:var(--sh-1);}
.acc-head{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-size:17px;
  font-weight:600;
  color:var(--c-ink-900);
  text-align:left;
}
.acc-head .acc-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  border-radius:8px;
  background:var(--c-primary-100);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;
  transition:transform var(--tr),background-color var(--tr),color var(--tr);
}
.acc-item.open .acc-head .acc-icon{background:var(--c-accent);color:#fff;transform:rotate(180deg);}
.acc-body{
  display:none;
  padding:0 20px 20px 20px;
  font-size:15.5px;
  line-height:1.9;
  color:var(--c-ink-700);
  background:var(--c-primary-100);
  border-left:3px solid var(--c-accent);
}
.acc-item.open .acc-body{display:block;}
.acc-body p:last-child{margin-bottom:0;}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 80px;}
.cta{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:40px;
  align-items:center;
  padding:44px;
  border-radius:var(--r-lg);
  background:var(--c-primary-100);
  border:1px solid #CDE4DF;
}
.cta h2{font-size:clamp(22px,3vw,28px);margin-bottom:12px;}
.cta p.lead{color:var(--c-ink-700);font-size:16px;margin-bottom:18px;}
.cta-badges{display:flex;flex-wrap:wrap;gap:10px;}
.cta-badges span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;
  border-radius:999px;
  background:#fff;
  border:1px solid #CDE4DF;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
}
.cta-form{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  box-shadow:var(--sh-1);
  display:flex;
  flex-direction:column;
  gap:14px;
}
.field label{display:block;font-size:13px;font-weight:600;color:var(--c-ink-700);margin-bottom:6px;}
.field input,.field select{
  width:100%;
  height:46px;
  padding:0 14px;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  background:#fff;
  font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr);
}
.field input:focus,.field select:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(15,107,99,.14);
}
.btn-submit{
  width:100%;
  height:48px;
  border-radius:999px;
  background:var(--c-accent);
  color:#fff;
  font-size:16px;
  font-weight:600;
  transition:transform var(--tr),background-color var(--tr),box-shadow var(--tr);
}
.btn-submit:hover{background:var(--c-accent-600);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-submit:active{transform:translateY(0);}
.form-tip{font-size:12px;color:var(--c-ink-500);line-height:1.7;margin:0;}
.form-ok{font-size:13px;color:var(--c-success);font-weight:600;margin:0;display:none;}
.form-ok.show{display:block;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  border-radius:999px;
  font-size:16px;font-weight:600;
  transition:transform var(--tr),background-color var(--tr),box-shadow var(--tr),color var(--tr),border-color var(--tr);
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:var(--sh-1);}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{border:1.5px solid var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-ghost:hover{background:var(--c-primary-100);color:var(--c-primary-600);border-color:var(--c-primary-600);}

.section-head{max-width:760px;margin:0 auto 36px;text-align:center;}
.section-head h2{font-size:clamp(24px,3.4vw,34px);margin-bottom:12px;}
.section-head p{color:var(--c-ink-500);margin:0;}

/* back to top */
.to-top{
  position:fixed;
  right:22px;bottom:26px;
  width:44px;height:44px;
  border-radius:50%;
  background:var(--c-primary);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr),background-color var(--tr);
  z-index:70;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--c-primary-600);color:#fff;}

/* ============ footer ============ */
.site-footer{
  background:var(--c-ink-900);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
  font-size:14.5px;
}
.footer-grid{padding-bottom:38px;}
.site-footer .brand{color:#fff;}
.site-footer .brand-mark{background:rgba(255,255,255,.1);color:#7FD6C9;}
.site-footer .brand:hover{color:#7FD6C9;}
.footer-brand p{color:rgba(255,255,255,.62);margin:16px 0 18px;max-width:320px;line-height:1.8;}
.footer-icons{display:flex;gap:10px;}
.footer-icons a{
  width:38px;height:38px;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  color:rgba(255,255,255,.8);
  display:flex;align-items:center;justify-content:center;
}
.footer-icons a:hover{background:var(--c-primary);color:#fff;}
.site-footer h3{
  color:#fff;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:16px;
}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{color:rgba(255,255,255,.68);}
.site-footer ul a:hover{color:#7FD6C9;}
.footer-contact li{color:rgba(255,255,255,.62);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 24px;
  justify-content:space-between;
  font-size:13.5px;
  color:rgba(255,255,255,.5);
}
.footer-bottom p{margin:0;}

/* ============ responsive ============ */
@media screen and (max-width:1240px){
  .container,.nav-wrap{max-width:1100px;}
}
@media screen and (max-width:1023px){
  :root{--h-header:64px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-links{
    position:fixed;
    top:var(--h-header);
    right:0;
    width:min(320px,86vw);
    height:calc(100vh - var(--h-header));
    background:#fff;
    border-left:1px solid var(--c-line);
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:22px 20px 90px;
    margin-left:0;
    overflow-y:auto;
    transform:translateX(104%);
    transition:transform var(--tr);
    box-shadow:-14px 0 40px rgba(12,26,23,.12);
  }
  .nav-links.open{transform:translateX(0);}
  .nav-links a{padding:14px 12px;font-size:16px;border-radius:var(--r-sm);}
  .nav-links a::after{display:none;}
  .nav-links a:hover{background:var(--c-primary-100);}
  .nav-cta-mobile{
    display:flex;
    align-items:center;
    justify-content:center;
    margin-top:auto;
    height:48px;
    border-radius:999px;
    background:var(--c-primary);
    color:#fff !important;
    font-weight:600;
  }
  .nav-cta-mobile:hover{background:var(--c-primary-600);}
  .doc-layout{grid-template-columns:1fr;gap:24px;}
  .toc{
    position:static;
    top:auto;
    padding:16px;
    border-radius:var(--r-md);
  }
  .toc h2{margin-bottom:10px;}
  .toc ol{
    display:flex;
    gap:8px;
    overflow-x:auto;
    padding-bottom:6px;
    -webkit-overflow-scrolling:touch;
  }
  .toc a{
    white-space:nowrap;
    border-left:0;
    border-radius:999px;
    background:var(--c-bg);
    padding:8px 14px;
    font-size:13.5px;
  }
  .toc a.current{border-left:0;background:var(--c-primary);color:#fff;}
  .toc-note{display:none;}
  .cta{grid-template-columns:1fr;gap:28px;padding:30px;}
  .section{padding:60px 0;}
}
@media screen and (max-width:767px){
  .page-hero .container{padding-top:34px;padding-bottom:38px;}
  .brand-text{font-size:15px;}
  .section{padding:48px 0;}
  .entry-card{grid-template-columns:1fr;gap:14px;padding:20px;}
  .entry-no{width:48px;height:48px;font-size:18px;}
  .banner-caption{padding:18px;}
  .cta{padding:24px 20px;}
  .to-top{right:16px;bottom:18px;}
  .footer-grid{row-gap:8px;}
}
@media screen and (max-width:520px){
  .hero-chips span{font-size:12px;padding:5px 11px;}
  .btn{width:100%;}
  .update-panel{padding:20px 18px;}
  .update-panel li{flex-direction:column;gap:2px;}
  .footer-bottom{flex-direction:column;}
}