/* roulang page: index */
:root{
  --c-primary:#0B6E5F;
  --c-primary-600:#0A5F53;
  --c-primary-100:#E6F4F0;
  --c-primary-50:#F2FAF7;
  --c-accent:#FF7A33;
  --c-accent-600:#F1651B;
  --c-accent-100:#FFEDE1;
  --c-teal:#7FD1C1;
  --c-ink:#15221F;
  --c-ink-2:#4E615C;
  --c-ink-3:#8A9A95;
  --c-bg:#FAF7F3;
  --c-bg-2:#F2EEE8;
  --c-card:#FFFFFF;
  --c-line:#E6E1DA;
  --g-brand:linear-gradient(120deg,#0B6E5F 0%,#128B76 55%,#7FD1C1 100%);
  --g-warm:linear-gradient(120deg,#FF7A33 0%,#FFB347 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,110,95,.06);
  --sh-2:0 12px 32px -18px rgba(11,110,95,.28);
  --sh-3:0 24px 56px -28px rgba(8,48,43,.34);
  --t:240ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary-600)}
a:visited{color:var(--c-primary)}
a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media(min-width:1440px){.wrap{max-width:1280px}}
.num{font-variant-numeric:tabular-nums}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn i{font-size:13px}
.btn-primary{background:var(--g-warm);color:#fff;box-shadow:0 10px 24px -14px rgba(241,101,27,.85)}
.btn-primary:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-outline{border:1px solid var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;pointer-events:none}

/* ---------- top bar ---------- */
.topbar{background:#08302B;color:#CFE8E2;font-size:13.5px}
.topbar .wrap{display:flex;align-items:center;justify-content:center;gap:12px;height:38px;text-align:center}
.topbar i{color:var(--c-teal)}
.topbar-link{color:#CFE8E2;border-bottom:1px solid rgba(207,232,226,.35);padding-bottom:1px}
.topbar-link:hover{color:var(--c-accent)}
@media(max-width:767px){.topbar{display:none}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.9);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-row{display:flex;align-items:center;gap:22px;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--c-ink);flex:0 0 auto}
.logo:hover{color:var(--c-ink)}
.logo-mark{
  width:32px;height:32px;border-radius:9px;background:var(--g-brand);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:13px;font-weight:800;letter-spacing:-.5px;
  box-shadow:var(--sh-1);
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-links a{
  position:relative;display:inline-block;padding:7px 0;
  font-size:15px;font-weight:500;color:var(--c-ink-2);line-height:1;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:var(--c-ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:9px;height:40px;
  padding:0 12px 0 15px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);min-width:236px;
  transition:border-color var(--t),box-shadow var(--t);
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(11,110,95,.10)}
.command-search i{color:var(--c-ink-3);font-size:13px}
.command-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-ink)}
.command-search input::placeholder{color:var(--c-ink-3)}
.kbd{
  font-size:11px;color:var(--c-ink-3);background:var(--c-bg-2);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;line-height:1.5;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  transition:color var(--t),border-color var(--t),transform var(--t);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:rgba(8,48,43,.48);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;right:0;top:0;height:100%;width:min(88%,350px);
  background:var(--c-bg);padding:22px;display:flex;flex-direction:column;gap:8px;
  transform:translateX(100%);transition:transform var(--t);overflow-y:auto;
  box-shadow:var(--sh-3);
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-panel a.d-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--c-ink);background:#fff;border:1px solid var(--c-line);
}
.drawer-panel a.d-link:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-panel a.d-link.is-active{background:var(--c-primary-100);color:var(--c-primary-600);border-color:var(--c-primary-100)}
.drawer-close{width:40px;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2)}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;padding:0 14px;border-radius:var(--r-sm);background:#fff;border:1px solid var(--c-line);margin-bottom:6px}
.drawer-search input{border:0;outline:0;flex:1;background:transparent;font-size:15px}
.drawer .btn{margin-top:14px}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:74px 0 58px;background:linear-gradient(180deg,var(--c-primary-50) 0%,rgba(250,247,243,0) 78%)}
.hero::before{
  content:"";position:absolute;width:560px;height:560px;right:-170px;top:-200px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,209,193,.40),rgba(127,209,193,0) 66%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:420px;height:420px;left:-190px;bottom:-260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,51,.16),rgba(255,122,51,0) 68%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:2}
.hero-grid{align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-primary-100);
  color:var(--c-primary-600);font-size:12px;font-weight:600;letter-spacing:.02em;
  box-shadow:var(--sh-1);margin-bottom:20px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent)}
h1.hero-title{
  font-size:clamp(30px,4.2vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.01em;
  color:var(--c-ink);margin-bottom:18px;
}
h1.hero-title em{font-style:normal;color:var(--c-primary)}
.hero-sub{font-size:17px;color:var(--c-ink-2);max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;height:40px;padding:0 16px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-2);box-shadow:var(--sh-1);
}
.hero-badge b{font-size:16px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:var(--sh-3);background:var(--c-bg-2);aspect-ratio:4/3;
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media .float-card{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.94);backdrop-filter:blur(6px);
  border-radius:var(--r-md);padding:14px 16px;border:1px solid rgba(230,225,218,.9);
  display:flex;align-items:center;gap:12px;
}
.float-card .fc-ico{
  width:38px;height:38px;border-radius:12px;background:var(--g-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;flex:0 0 auto;
}
.float-card strong{display:block;font-size:14.5px;color:var(--c-ink)}
.float-card span{font-size:13px;color:var(--c-ink-2)}
.trust-row{
  display:flex;flex-wrap:wrap;gap:10px 30px;align-items:center;
  margin-top:44px;padding-top:22px;border-top:1px dashed var(--c-line);
  font-size:14px;color:var(--c-ink-2);
}
.trust-row span{display:inline-flex;align-items:center;gap:8px}
.trust-row i{color:var(--c-primary)}

/* ---------- section ---------- */
.section{padding:92px 0}
.section.tight{padding:70px 0 88px}
.section.alt{background:var(--c-bg-2)}
.section.dark{background:#08302B;color:#E4F1EE}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px}
.sec-kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--c-primary);background:var(--c-primary-100);
  border-radius:var(--r-pill);padding:5px 12px;margin-bottom:12px;
}
.sec-title{font-size:clamp(22px,3vw,30px);font-weight:700;letter-spacing:-.01em}
.sec-sub{color:var(--c-ink-2);margin-top:10px;max-width:640px;font-size:15.5px}
.sec-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;
  color:var(--c-primary);white-space:nowrap;padding-bottom:4px;
}
.sec-more:hover{gap:12px}
.section.dark .sec-kicker{background:rgba(127,209,193,.16);color:var(--c-teal)}
.section.dark .sec-sub{color:#A8C9C2}

/* ---------- product cards ---------- */
.p-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  box-shadow:var(--sh-1);
}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D2C8}
.p-thumb{position:relative;overflow:hidden;aspect-ratio:16/10;background:var(--c-bg-2)}
.p-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.p-card:hover .p-thumb img{transform:scale(1.04)}
.p-thumb .ribbon{
  position:absolute;top:14px;left:14px;height:26px;padding:0 11px;
  display:inline-flex;align-items:center;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.p-thumb .ribbon.warm{background:var(--c-accent)}
.p-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.p-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-100);color:var(--c-primary-600);
}
.tag.warm{background:var(--c-accent-100);color:var(--c-accent-600)}
.tag.mute{background:var(--c-bg-2);color:var(--c-ink-2)}
.p-title{font-size:19px;font-weight:700;line-height:1.4}
.p-card--wide .p-title{font-size:22px}
.p-desc{font-size:14.5px;color:var(--c-ink-2);line-height:1.7}
.p-spec{display:flex;flex-wrap:wrap;gap:6px 18px;font-size:13.5px;color:var(--c-ink-3)}
.p-spec b{color:var(--c-ink-2);font-weight:600}
.p-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding-top:14px;border-top:1px dashed var(--c-line);
}
.price{font-size:19px;font-weight:800;color:var(--c-accent-600);font-variant-numeric:tabular-nums}
.price small{font-size:12px;font-weight:500;color:var(--c-ink-3);margin-left:4px}

/* ---------- reviews ---------- */
.track-wrap{position:relative}
.track{
  display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 18px;scrollbar-width:none;
}
.track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 44px)/3);scroll-snap-align:start;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px 24px;display:flex;flex-direction:column;gap:14px;
  transition:transform var(--t),box-shadow var(--t);
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rv-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;background:var(--g-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;flex:0 0 auto;
}
.rv-name{font-size:15px;font-weight:700}
.rv-role{font-size:13px;color:var(--c-ink-3)}
.rv-score{margin-left:auto;font-size:13px;font-weight:700;color:var(--c-accent-600);font-variant-numeric:tabular-nums}
.rv-score i{font-size:12px;margin-right:3px}
.rv-text{font-size:15px;color:var(--c-ink-2);line-height:1.75}
.track-nav{display:flex;align-items:center;gap:12px;justify-content:center;margin-top:6px}
.track-arrow{
  width:42px;height:42px;border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--t),border-color var(--t),transform var(--t);
}
.track-arrow:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-1px)}
.track-dots{display:flex;align-items:center;gap:8px}
.track-dots button{
  width:8px;height:8px;border-radius:50%;background:#D5CEC4;transition:all var(--t);
}
.track-dots button.is-active{width:24px;border-radius:var(--r-pill);background:var(--c-primary)}

/* ---------- guarantee ---------- */
.guarantee{
  background:var(--c-primary-50);border:1px solid var(--c-primary-100);
  border-radius:var(--r-xl);padding:34px 30px;
}
.gu-item{display:flex;gap:14px;align-items:flex-start}
.gu-ico{
  width:44px;height:44px;border-radius:14px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  background:#fff;color:var(--c-primary);border:1px solid var(--c-primary-100);
}
.gu-ico.warm{color:var(--c-accent-600)}
.gu-ico.teal{color:#128B76}
.gu-ico.warn{color:#E0A100}
.gu-title{font-size:16px;font-weight:700;margin-bottom:4px}
.gu-desc{font-size:14px;color:var(--c-ink-2);line-height:1.7}

/* ---------- stats ---------- */
.stat-item{text-align:left}
.stat-num{
  font-size:clamp(28px,4vw,36px);font-weight:800;line-height:1.1;
  font-variant-numeric:tabular-nums;
  background:var(--g-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.section.dark .stat-num{background:linear-gradient(120deg,#7FD1C1 0%,#FFB347 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-unit{font-size:15px;font-weight:700;color:var(--c-primary);margin-left:4px;-webkit-text-fill-color:var(--c-primary)}
.stat-label{font-size:13.5px;color:var(--c-ink-2);margin-top:8px}
.section.dark .stat-label{color:#9DC2BA}
.stat-line{height:1px;background:rgba(127,209,193,.22);margin:30px 0 26px}
.section.dark .stat-note{font-size:14.5px;color:#A8C9C2;max-width:860px}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;gap:12px;height:100%;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D8D2C8}
.news-title{font-size:17.5px;font-weight:700;line-height:1.5;color:var(--c-ink)}
.news-card:hover .news-title{color:var(--c-primary-600)}
.news-desc{font-size:14.5px;color:var(--c-ink-2);line-height:1.72;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{
  margin-top:auto;display:flex;align-items:center;gap:12px;
  padding-top:14px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-ink-3);
}
.news-meta .go{margin-left:auto;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:12px;
  padding:56px 24px;background:var(--c-card);border:1px dashed var(--c-line);
  border-radius:var(--r-lg);color:var(--c-ink-3);font-size:15px;text-align:center;
}
.news-empty i{font-size:26px;color:var(--c-teal)}

/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  margin-bottom:14px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item:hover{border-color:#D8D2C8}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.faq-q{
  width:100%;min-height:60px;padding:18px 24px;display:flex;align-items:center;
  justify-content:space-between;gap:18px;text-align:left;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-2px}
.faq-ico{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-100);color:var(--c-primary);font-size:12px;
  transition:transform var(--t),background-color var(--t),color var(--t);
}
.faq-item.is-open .faq-ico{transform:rotate(45deg);background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height var(--t)}
.faq-a-inner{padding:0 24px 22px;color:var(--c-ink-2);font-size:15.5px;line-height:1.8;max-width:780px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:var(--g-brand);color:#fff;padding:56px 48px;
  box-shadow:var(--sh-3);
}
.cta-band::after{
  content:"";position:absolute;width:380px;height:380px;right:-120px;top:-160px;
  border-radius:50%;background:rgba(255,255,255,.14);pointer-events:none;
}
.cta-band h2{font-size:clamp(22px,3vw,30px);margin-bottom:14px}
.cta-band p{font-size:15.5px;color:rgba(255,255,255,.88);max-width:600px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.btn-onbrand{background:#fff;color:var(--c-primary-600)}
.btn-onbrand:hover{background:#F4FFFC;color:var(--c-primary);transform:translateY(-1px)}
.btn-onbrand-line{border:1px solid rgba(255,255,255,.7);color:#fff}
.btn-onbrand-line:hover{background:rgba(255,255,255,.14);color:#fff}
.cta-note{margin-top:18px;font-size:13.5px;color:rgba(255,255,255,.82)}

/* ---------- footer ---------- */
.site-footer{background:#08302B;color:#CFE8E2;padding-top:66px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-desc{font-size:14px;color:#9DC2BA;line-height:1.8;max-width:320px}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a,.footer-contact a{font-size:14px;color:#A8C9C2}
.footer-links a:hover,.footer-contact a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#A8C9C2;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--c-teal);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(127,209,193,.18);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13.5px;color:#8FB6AE;
}
.footer-bottom .fb-links{display:flex;gap:20px}
.footer-bottom a{color:#8FB6AE}
.footer-bottom a:hover{color:var(--c-accent)}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;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(--t),transform var(--t),visibility var(--t),background var(--t);
  z-index:70;
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-600);color:#fff}

/* ---------- responsive ---------- */
@media(max-width:1023px){
  .nav-links{display:none}
  .command-search{display:none}
  .nav-toggle{display:flex}
  .section{padding:64px 0}
  .section.tight{padding:56px 0 64px}
  .hero{padding:54px 0 46px}
  .hero-media{margin-top:36px;aspect-ratio:16/10}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .review-card{flex:0 0 calc((100% - 22px)/2)}
  .cta-band{padding:44px 32px}
}
@media(max-width:767px){
  .guarantee{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
}
@media(max-width:639px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .nav-row{height:62px;gap:12px}
  .logo{font-size:16.5px}
  .hero-badges{gap:8px}
  .hero-badge{height:36px;padding:0 12px;font-size:12.5px}
  .hero-cta .btn{width:100%}
  .p-foot{flex-direction:column;align-items:stretch;gap:12px}
  .p-foot .btn{width:100%}
  .review-card{flex:0 0 86%}
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .stat-item{text-align:left}
  .cta-band{padding:34px 22px;border-radius:var(--r-lg)}
  .cta-actions .btn{width:100%}
  .to-top{right:14px;bottom:18px;width:42px;height:42px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  .p-card:hover,.news-card:hover,.review-card:hover{transform:none}
  .p-card:hover .p-thumb img{transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#0B6E5F;
  --c-primary-600:#0A5F53;
  --c-primary-100:#E6F4F0;
  --c-primary-50:#F2FAF7;
  --c-accent:#FF7A33;
  --c-accent-600:#F1651B;
  --c-accent-100:#FFEDE1;
  --c-teal:#7FD1C1;
  --c-ink:#15221F;
  --c-ink-2:#4E615C;
  --c-ink-3:#8A9A95;
  --c-bg:#FAF7F3;
  --c-bg-2:#F2EEE8;
  --c-card:#FFFFFF;
  --c-line:#E6E1DA;
  --c-ok:#1F9D6B;
  --c-warn:#E0A100;
  --c-err:#D64545;
  --g-brand:linear-gradient(120deg,#0B6E5F 0%,#128B76 55%,#7FD1C1 100%);
  --g-warm:linear-gradient(120deg,#FF7A33 0%,#FFB347 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,110,95,.06);
  --sh-2:0 12px 32px -18px rgba(11,110,95,.28);
  --sh-3:0 24px 56px -28px rgba(8,48,43,.34);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--c-ink)}
p{margin:0 0 1.1em}
img{display:block;max-width:100%;height:auto}
ul,ol{padding-left:1.2em}
a{color:var(--c-primary);text-decoration:none;transition:color .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease)}
a:hover{color:var(--c-accent-600)}
a:visited{color:var(--c-primary)}
a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
button{font:inherit;cursor:pointer}
table{border-collapse:collapse}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.wrap{max-width:1280px}}
@media (max-width:640px){.wrap{padding:0 16px}}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(250,247,243,.92);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-row{display:flex;align-items:center;gap:22px;min-height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap}
.logo:hover{color:var(--c-primary)}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:var(--g-brand);color:#fff;
  font-size:13px;font-weight:800;letter-spacing:.02em;
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-links a{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-ink-2)}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(11,110,95,.10)}
.command-search i{color:var(--c-ink-3);font-size:13px}
.command-search input{border:0;outline:0;background:transparent;width:176px;font-size:14px;color:var(--c-ink);font-family:inherit}
.command-search input::placeholder{color:var(--c-ink-3)}
.kbd{font-size:11px;color:var(--c-ink-3);border:1px solid var(--c-line);border-radius:6px;padding:1px 5px;background:var(--c-bg-2);white-space:nowrap}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;color:var(--c-ink-2);
  transition:all .24s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--c-line);border-radius:var(--r-pill);background:#fff;position:relative;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform .24s var(--ease);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.site-header.nav-open .nav-toggle span{background:transparent}
.site-header.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
.site-header.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  border:1px solid transparent;font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .24s var(--ease),filter .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-primary{background:var(--g-warm);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-line)}
.btn-ghost:hover{background:var(--c-primary-50);border-color:var(--c-primary);color:var(--c-primary-600)}
.btn-white{background:#fff;color:var(--c-primary-600)}
.btn-white:hover{background:#F1FAF7;color:var(--c-primary-600)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.62);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:26px 0 0;font-size:13.5px;color:var(--c-ink-3);
}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-ink-3);font-size:13px}
.breadcrumb .current{color:var(--c-ink-2);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章 ---------- */
.article-section{padding:8px 0 0}
.article-col{max-width:820px;margin:0 auto}
.article-head{padding:22px 0 30px}
.article-kicker{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-primary-100);color:var(--c-primary-600);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{
  margin:16px 0 16px;
  font-size:clamp(30px,4vw,44px);line-height:1.22;font-weight:800;letter-spacing:-.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  padding-top:16px;border-top:1px solid var(--c-line);
  font-size:13.5px;color:var(--c-ink-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-item i{color:var(--c-teal)}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--c-line)}
.share-row{margin-left:auto;display:flex;align-items:center;gap:8px}
.share-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:36px;padding:0 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);font-size:13px;
  transition:all .24s var(--ease);
}
.share-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-50)}
.share-btn.is-copied{color:#fff;background:var(--c-primary);border-color:var(--c-primary)}

.article-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-xl);
  padding:46px 48px;box-shadow:var(--sh-1);
}
.article-body{font-size:18.5px;line-height:1.85;color:var(--c-ink-2);overflow-wrap:break-word}
.article-body h1,.article-body h2{
  margin:2em 0 .8em;padding-left:14px;border-left:4px solid var(--c-primary);
  font-size:clamp(21px,2.2vw,27px);line-height:1.4;color:var(--c-ink);
}
.article-body h2:first-child,.article-body h1:first-child{margin-top:0}
.article-body h3{margin:1.6em 0 .6em;font-size:clamp(18px,1.6vw,21px);color:var(--c-primary-600);font-weight:600}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;color:var(--c-ink)}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body li{margin-bottom:.6em;line-height:1.8}
.article-body strong{color:var(--c-ink);font-weight:600}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(11,110,95,.28)}
.article-body a:hover{color:var(--c-accent-600);border-bottom-color:rgba(241,101,27,.4)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--c-primary-50);
  border-left:4px solid var(--c-teal);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.6em auto;max-width:100%;height:auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:8px;font-size:13.5px;color:var(--c-ink-3);text-align:center}
.article-body table{width:100%;margin:1.6em 0;font-size:15px;border:1px solid var(--c-line)}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;line-height:1.6}
.article-body thead th{background:var(--c-primary-50);color:var(--c-ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBF9F6}
.article-body code{background:var(--c-bg-2);border-radius:6px;padding:2px 6px;font-size:15px}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

.inline-cta{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:2.4em;padding:22px 24px;
  border:1px solid var(--c-primary-100);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(11,110,95,.05),rgba(127,209,193,.16));
}
.inline-cta b{display:block;font-size:16.5px;color:var(--c-ink)}
.inline-cta span{font-size:14px;color:var(--c-ink-2)}

.empty-state{
  padding:56px 24px;text-align:center;
  border:1px dashed var(--c-line);border-radius:var(--r-xl);background:var(--c-card);
}
.empty-state i{font-size:30px;color:var(--c-teal)}
.empty-state h2{margin:14px 0 8px;font-size:22px}
.empty-state p{color:var(--c-ink-2);font-size:15px}
.empty-state .btn{margin-top:14px}

.article-foot{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:34px;padding-top:26px;border-top:1px solid var(--c-line);
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.tag-list a{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  background:var(--c-bg-2);color:var(--c-ink-2);font-size:13px;
  transition:all .24s var(--ease);
}
.tag-list a:hover{background:var(--c-primary-100);color:var(--c-primary-600)}
.post-nav{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--c-ink-3)}
.section-head .more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.related-grid{margin-left:-12px;margin-right:-12px}
.related-cell{padding:0 12px;margin-bottom:24px}
.post-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.post-media{aspect-ratio:16/10;overflow:hidden;background:var(--c-bg-2)}
.post-media img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.post-card:hover .post-media img{transform:scale(1.04)}
.post-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 22px}
.post-tag{
  align-self:flex-start;padding:4px 10px;border-radius:var(--r-pill);
  background:var(--c-primary-100);color:var(--c-primary-600);
  font-size:12px;letter-spacing:.02em;
}
.post-body h3{font-size:18px;line-height:1.5}
.post-body h3 a{color:var(--c-ink)}
.post-body h3 a:hover{color:var(--c-primary)}
.post-body p{
  margin:0;font-size:14px;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-ink-3);font-variant-numeric:tabular-nums;
}

/* ---------- CTA ---------- */
.cta-section{margin-top:80px;padding:76px 0;background:var(--c-bg-2)}
.cta-card{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.45fr .9fr;gap:34px;align-items:center;
  padding:48px;border-radius:var(--r-xl);
  background:var(--g-brand);color:#fff;box-shadow:var(--sh-3);
}
.cta-card::after{
  content:"";position:absolute;right:-80px;bottom:-110px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-card h2{font-size:clamp(24px,2.8vw,34px);color:#fff;line-height:1.32}
.cta-card p{margin:14px 0 0;font-size:15px;color:rgba(255,255,255,.88)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-side{
  position:relative;z-index:2;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  border-radius:var(--r-lg);padding:22px 24px;
}
.cta-side h3{font-size:16px;color:#fff;margin-bottom:12px}
.cta-side ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.cta-side li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.9)}
.cta-side i{color:#CDEFE6;margin-top:4px}

/* ---------- 页脚 ---------- */
.site-footer{background:#08302B;color:#EAF3F0;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;font-size:17px;font-weight:800;color:#fff}
.footer-brand:hover{color:var(--c-accent)}
.footer-desc{margin:0;font-size:14px;line-height:1.8;color:rgba(234,243,240,.72)}
.footer-title{margin:0 0 16px;font-size:15px;font-weight:600;color:#fff}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(234,243,240,.72)}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(234,243,240,.72)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--c-teal);margin-top:5px}
.num{font-variant-numeric:tabular-nums}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(234,243,240,.14);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(234,243,240,.62);
}
.fb-links{display:flex;flex-wrap:wrap;gap:16px}
.fb-links a{color:rgba(234,243,240,.62)}
.fb-links a:hover{color:var(--c-accent)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:80;
  display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;
  border:0;border-radius:50%;background:var(--c-primary);color:#fff;box-shadow:var(--sh-3);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-600);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-links{
    position:fixed;left:0;right:0;top:71px;bottom:auto;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:12px 20px 22px;margin:0;
    background:rgba(250,247,243,.99);
    border-bottom:1px solid var(--c-line);box-shadow:var(--sh-3);
  }
  .site-header.nav-open .nav-links{display:flex}
  .nav-links a{padding:15px 2px;font-size:16.5px;border-bottom:1px solid var(--c-line);color:var(--c-ink)}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--c-primary)}
  .nav-links a:last-child{border-bottom:0}
  .nav-toggle{display:inline-flex}
  .command-search{display:none}
  .icon-btn{display:none}
  .article-meta .share-row{margin-left:0;width:100%}
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-card{grid-template-columns:1fr;padding:36px}
}
@media (max-width:640px){
  body{font-size:16px}
  .nav-row{min-height:64px}
  .nav-links{top:65px}
  .breadcrumb{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
  .breadcrumb::-webkit-scrollbar{display:none}
  .article-head{padding:16px 0 22px}
  .article-card{padding:26px 18px;border-radius:var(--r-lg)}
  .article-body{font-size:17px;line-height:1.85}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .inline-cta{padding:18px}
  .inline-cta .btn{width:100%}
  .article-foot{flex-direction:column;align-items:flex-start}
  .post-nav{width:100%}
  .post-nav .btn{flex:1 1 auto}
  .related{padding:56px 0 0}
  .cta-section{margin-top:56px;padding:56px 0}
  .cta-card{padding:28px 20px;border-radius:var(--r-lg)}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .to-top{right:16px;bottom:18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --c-primary:#0B6E5F;
  --c-primary-600:#0A5F53;
  --c-primary-100:#E6F4F0;
  --c-primary-50:#F2FAF7;
  --c-accent:#FF7A33;
  --c-accent-600:#F1651B;
  --c-accent-100:#FFEDE1;
  --c-teal:#7FD1C1;
  --c-ink:#15221F;
  --c-ink-2:#4E615C;
  --c-ink-3:#8A9A95;
  --c-bg:#FAF7F3;
  --c-bg-2:#F2EEE8;
  --c-card:#FFFFFF;
  --c-line:#E6E1DA;
  --c-ok:#1F9D6B;
  --c-warn:#E0A100;
  --c-err:#D64545;
  --g-brand:linear-gradient(120deg,#0B6E5F 0%,#128B76 52%,#7FD1C1 100%);
  --g-warm:linear-gradient(120deg,#FF7A33 0%,#FFB347 100%);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,110,95,.06);
  --sh-2:0 12px 32px -18px rgba(11,110,95,.28);
  --sh-3:0 24px 56px -28px rgba(8,48,43,.34);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--c-accent-600)}
a:visited{color:var(--c-primary)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
h1,h2,h3,h4{color:var(--c-ink);letter-spacing:-.01em;margin:0}
h1{font-size:clamp(30px,4vw,44px);line-height:1.22;font-weight:800}
h2{font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700}
h3{font-size:clamp(18px,2vw,21px);line-height:1.4;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
.num,.spec-table td,.spec-table th,.kpi-num{font-variant-numeric:tabular-nums}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.wrap{max-width:1280px}}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-16px}
.grid-margin-y>.cell{padding-top:16px;padding-bottom:16px}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-row{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.logo:hover{color:var(--c-ink)}
.logo-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:var(--g-brand);color:#fff;font-size:12.5px;font-weight:800;letter-spacing:.02em;flex:0 0 auto;
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
.nav-links a{position:relative;padding:8px 2px;font-size:15px;font-weight:500;color:var(--c-ink-2)}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-primary);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;height:40px;min-width:238px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(11,110,95,.12)}
.command-search i{color:var(--c-ink-3);font-size:13px}
.command-search input{
  flex:1 1 auto;width:100%;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--c-ink);font-family:inherit;
}
.kbd{
  flex:0 0 auto;font-size:11px;line-height:1;padding:4px 6px;border-radius:6px;
  border:1px solid var(--c-line);background:var(--c-bg-2);color:var(--c-ink-3);letter-spacing:.02em;
}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease);
}
.icon-btn:hover{background:var(--c-primary-50);color:var(--c-primary);border-color:var(--c-primary-100)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:#fff;cursor:pointer;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .24s var(--ease),background .24s var(--ease),color .24s var(--ease),filter .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--g-warm);color:#fff;box-shadow:0 12px 26px -16px rgba(241,101,27,.85)}
.btn-primary:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary-100)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn-ghost:active{transform:translateY(1px)}
.btn-light{background:#fff;color:var(--c-primary-600)}
.btn-light:hover{background:#F3FFFB;color:var(--c-primary-600);transform:translateY(-1px)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-line:hover{background:rgba(255,255,255,.12);color:#fff}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* breadcrumb + hero */
.hero-cat{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F2FAF7 0%,#FAF7F3 78%);
}
.hero-cat::after{
  content:"";position:absolute;right:-160px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,209,193,.35) 0%,rgba(127,209,193,0) 68%);pointer-events:none;
}
.crumb{
  position:relative;z-index:1;display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding:18px 0 0;font-size:13.5px;color:var(--c-ink-3);
}
.crumb a{color:var(--c-ink-3)}
.crumb a:hover{color:var(--c-primary)}
.crumb i{font-size:10px;color:var(--c-ink-3)}
.hero-cat-inner{position:relative;z-index:1;align-items:center;padding:24px 0 60px;min-height:360px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-primary-100);color:var(--c-primary-600);
  font-size:12px;font-weight:600;letter-spacing:.02em;box-shadow:var(--sh-1);
}
.hero-cat h1{margin:16px 0 16px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--c-ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-cat-figure{margin:0}
.hero-cat-figure img{
  width:100%;height:auto;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:var(--sh-3);
}

/* sections */
.section{padding:88px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head p{color:var(--c-ink-2);margin-top:14px;font-size:16px}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;
  color:var(--c-primary-600);background:var(--c-primary-100);
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:14px;
}
.lead-block p{font-size:16.5px;color:var(--c-ink-2)}

.kpi-list{display:grid;grid-template-columns:1fr;gap:14px}
.kpi{
  display:flex;align-items:center;gap:16px;padding:20px 22px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.kpi:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.kpi-num{
  font-size:clamp(26px,3vw,32px);font-weight:800;line-height:1;
  background:var(--g-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.kpi-label{font-size:13.5px;color:var(--c-ink-2);line-height:1.5}

/* table */
.table-scroll{
  overflow-x:auto;-webkit-overflow-scrolling:touch;
  border-radius:var(--r-lg);box-shadow:var(--sh-2);background:#fff;
}
.spec-table{width:100%;min-width:720px;border-collapse:collapse;background:#fff}
.spec-table th,.spec-table td{
  padding:16px 20px;text-align:left;font-size:15px;color:var(--c-ink-2);
  border-bottom:1px solid var(--c-line);vertical-align:top;
}
.spec-table thead th{
  background:var(--c-primary-50);color:var(--c-primary-600);
  font-size:13.5px;font-weight:700;letter-spacing:.02em;white-space:nowrap;
}
.spec-table tbody th{font-weight:600;color:var(--c-ink);background:#FFFDFB;white-space:nowrap}
.spec-table tbody tr:nth-child(even) td,.spec-table tbody tr:nth-child(even) th{background:#FBFAF8}
.spec-table tbody tr:last-child td,.spec-table tbody tr:last-child th{border-bottom:0}
.table-note{margin-top:16px;font-size:13.5px;color:var(--c-ink-3)}

/* feature rows */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:40px 0;
}
.feature-row + .feature-row{border-top:1px solid var(--c-line)}
.feature-row.is-reverse .feature-media{order:2}
.feature-media{margin:0}
.feature-media img{
  width:100%;height:auto;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-xl);box-shadow:var(--sh-2);
}
.feature-body .tag{margin-bottom:14px}
.feature-body h3{margin-bottom:14px}
.feature-body p{color:var(--c-ink-2);margin-bottom:20px}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-100);color:var(--c-primary-600);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.tag-warm{background:var(--c-accent-100);color:var(--c-accent-600)}
.tick-list{display:grid;gap:12px}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--c-ink-2)}
.tick-list i{color:var(--c-primary);font-size:14px;margin-top:5px;flex:0 0 auto}

/* checklist cards */
.check-card{
  height:100%;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-primary-100)}
.check-icon{
  display:grid;place-items:center;width:42px;height:42px;border-radius:12px;
  background:var(--c-primary-50);color:var(--c-primary);font-size:17px;margin-bottom:16px;
}
.check-card h3{font-size:17px;margin-bottom:10px}
.check-card p{font-size:14.5px;color:var(--c-ink-2);margin:0}

/* faq */
.faq-list{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  margin-bottom:14px;overflow:hidden;transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item.is-open{border-color:var(--c-primary-100);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:18px 24px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-ink);text-align:left;line-height:1.5;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:0 0 auto;display:grid;place-items:center;width:28px;height:28px;border-radius:50%;
  background:var(--c-primary-50);color:var(--c-primary);font-size:12px;
  transition:transform .24s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* cta */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--g-brand);border-radius:var(--r-xl);padding:56px;
  color:#fff;box-shadow:var(--sh-3);
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-90px;bottom:-140px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.12);pointer-events:none;
}
.cta-card h2{color:#fff;margin-bottom:14px}
.cta-card p{color:rgba(255,255,255,.88);max-width:560px;margin:0}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* footer */
.site-footer{background:#08302B;color:#EFE9E1;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff}
.footer-brand:hover{color:#fff}
.footer-desc{margin:18px 0 0;max-width:330px;font-size:14px;line-height:1.85;color:rgba(239,233,225,.72)}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 18px;letter-spacing:.02em}
.footer-links,.footer-contact{display:grid;gap:12px;font-size:14px}
.footer-links a{color:rgba(239,233,225,.8)}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(239,233,225,.8)}
.footer-contact i{color:var(--c-teal);margin-top:4px;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  font-size:13px;color:rgba(239,233,225,.62);
}
.footer-bottom a{color:rgba(239,233,225,.72);margin-left:16px}
.footer-bottom a:hover{color:var(--c-accent)}
.fb-links{display:flex;flex-wrap:wrap;align-items:center}

/* to top */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:var(--r-pill);border:0;cursor:pointer;
  background:var(--c-primary);color:#fff;display:grid;place-items:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s var(--ease),transform .24s var(--ease),visibility .24s var(--ease),background .24s var(--ease);
}
.to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--c-primary-600)}

@media (max-width:1023px){
  .nav-links{display:none}
  .command-search{display:none}
  .icon-btn{display:none}
  .nav-toggle{display:grid}
  .site-header.nav-open .nav-links{
    display:flex;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:0;margin:0;
    padding:8px 24px 20px;background:var(--c-bg);
    border-bottom:1px solid var(--c-line);box-shadow:var(--sh-3);
  }
  .site-header.nav-open .nav-links a{padding:14px 0;border-bottom:1px solid var(--c-line);font-size:16px}
  .site-header.nav-open .nav-links a:last-child{border-bottom:0}
  .site-header.nav-open .nav-links a::after{display:none}
  .hero-cat-inner{min-height:auto;padding:16px 0 48px}
  .hero-sub{max-width:none}
  .section{padding:64px 0}
  .feature-row{grid-template-columns:1fr;gap:26px;padding:32px 0}
  .feature-row.is-reverse .feature-media{order:0}
  .cta-card{grid-template-columns:1fr;padding:44px 36px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .nav-row{height:64px;gap:12px}
  .logo{font-size:16px}
  .logo-mark{width:30px;height:30px;border-radius:9px;font-size:11.5px}
  .site-header.nav-open .nav-links{padding:6px 16px 16px}
  .hero-cat h1{margin:14px 0 12px}
  .hero-sub{font-size:15.5px;margin-bottom:22px}
  .hero-actions .btn{flex:1 1 100%}
  .section{padding:56px 0}
  .section-head{margin-bottom:28px}
  .kpi-list{grid-template-columns:1fr 1fr}
  .kpi{padding:16px;gap:12px;flex-direction:column;align-items:flex-start}
  .check-card{padding:20px}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a p{padding:0 18px 18px}
  .cta-card{padding:32px 22px;border-radius:var(--r-lg)}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom a{margin-left:0;margin-right:14px}
  .to-top{right:16px;bottom:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
  .check-card:hover,.kpi:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#0B6E5F;
  --c-primary-600:#0A5F53;
  --c-primary-100:#E6F4F0;
  --c-primary-50:#F2FAF7;
  --c-accent:#FF7A33;
  --c-accent-600:#F1651B;
  --c-accent-100:#FFEDE1;
  --c-teal:#7FD1C1;
  --c-ink:#15221F;
  --c-ink-2:#4E615C;
  --c-ink-3:#8A9A95;
  --c-bg:#FAF7F3;
  --c-bg-2:#F2EEE8;
  --c-card:#FFFFFF;
  --c-line:#E6E1DA;
  --c-ok:#1F9D6B;
  --g-brand:linear-gradient(120deg,#0B6E5F 0%,#128B76 52%,#7FD1C1 100%);
  --g-warm:linear-gradient(120deg,#FF7A33 0%,#FFB347 100%);
  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:28px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,110,95,.06);
  --sh-2:0 12px 32px -18px rgba(11,110,95,.28);
  --sh-3:0 24px 56px -28px rgba(8,48,43,.34);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;line-height:1.75;color:var(--c-ink);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--c-primary-600)}
a:visited{color:var(--c-primary)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.grid-padding-x{margin-left:-12px;margin-right:-12px}
.grid-padding-x>.cell{padding-left:12px;padding-right:12px}
.num{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(250,247,243,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
}
.nav-row{display:flex;align-items:center;gap:24px;min-height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-.01em}
.logo:hover{color:var(--c-ink)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--g-brand);color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:.04em;
  box-shadow:var(--sh-1);flex:none;
}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .24s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-primary);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.command-search{
  display:flex;align-items:center;gap:8px;height:40px;min-width:248px;
  padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-pill);
  background:#fff;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.command-search i{color:var(--c-ink-3);font-size:13px}
.command-search input{
  flex:1;min-width:0;border:0;outline:none;background:transparent;
  font-size:14px;color:var(--c-ink);
}
.command-search input::placeholder{color:var(--c-ink-3)}
.command-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(11,110,95,.14)}
.kbd{
  font-size:11px;color:var(--c-ink-3);border:1px solid var(--c-line);
  background:var(--c-primary-50);border-radius:6px;padding:1px 6px;line-height:1.6;
}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink-2);display:grid;place-items:center;
  transition:all .24s var(--ease);
}
.icon-btn:hover{color:var(--c-primary);border-color:var(--c-teal);background:var(--c-primary-50)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle::before,.nav-toggle::after,.nav-toggle span{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform .24s var(--ease),opacity .2s var(--ease);
}
.nav-toggle::before{top:15px}
.nav-toggle span{top:50%;transform:translateY(-50%)}
.nav-toggle::after{bottom:15px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .24s var(--ease),background-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--g-warm);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{color:#fff;filter:brightness(.94);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary-100)}
.btn-ghost:hover{background:var(--c-primary-50);color:var(--c-primary-600)}
.btn-line{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff}
.btn-line:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-white{background:#fff;color:var(--c-primary)}
.btn-white:hover{color:var(--c-primary-600);transform:translateY(-1px)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;display:flex;align-items:center;
  min-height:390px;padding:64px 0;
  background:#08302B url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,48,43,.93) 0%,rgba(8,48,43,.80) 46%,rgba(11,110,95,.55) 100%);
}
.page-hero .wrap{position:relative;z-index:1}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(233,243,240,.72);margin-bottom:18px;flex-wrap:wrap}
.crumbs a{color:rgba(233,243,240,.82)}
.crumbs a:hover{color:#fff}
.crumbs span{opacity:.7}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4.6vw,44px);line-height:1.22;font-weight:800;
  letter-spacing:-.01em;max-width:880px;
}
.page-hero .hero-sub{
  color:#7FD1C1;font-size:14px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  margin-bottom:14px;display:block;
}
.hero-lead{color:rgba(233,243,240,.9);font-size:17px;line-height:1.8;max-width:660px;margin:18px 0 0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  font-size:12.5px;color:#E9F3F0;border:1px solid rgba(127,209,193,.42);
  background:rgba(127,209,193,.12);border-radius:var(--r-pill);padding:5px 13px;
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section.tight{padding:80px 0}
.section.alt{background:var(--c-bg-2)}
.section.dark{background:#08302B;color:#E9F3F0}
.section.dark h2,.section.dark h3{color:#fff}
.section.dark p{color:rgba(233,243,240,.82)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--c-primary);background:var(--c-primary-100);border-radius:var(--r-pill);
  padding:5px 12px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(22px,3vw,30px);line-height:1.3}
.sec-head p{margin-top:14px;color:var(--c-ink-2);font-size:16px}
.section.dark .sec-head p{color:rgba(233,243,240,.78)}

/* lead */
.lead-grid{align-items:center}
.lead-text p{font-size:17.5px;line-height:1.85;color:var(--c-ink-2)}
.lead-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-3);
}
.lead-points{margin-top:24px;display:grid;gap:12px}
.lead-points li{display:flex;gap:10px;font-size:15.5px;color:var(--c-ink-2);align-items:flex-start}
.lead-points i{color:var(--c-primary);margin-top:5px;font-size:13px}

/* feature matrix */
.matrix-cell{margin-bottom:24px}
.feature-card{
  height:100%;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-teal)}
.feature-icon{
  width:46px;height:46px;border-radius:14px;background:var(--c-primary-100);color:var(--c-primary);
  display:grid;place-items:center;font-size:18px;margin-bottom:18px;
}
.feature-card h3{font-size:18.5px;margin-bottom:10px}
.feature-card p{font-size:15px;color:var(--c-ink-2);margin:0}
.feature-meta{
  margin-top:16px;font-size:13px;color:var(--c-ink-3);display:flex;align-items:center;gap:8px;
}
.feature-meta b{color:var(--c-primary);font-weight:700;font-variant-numeric:tabular-nums}

/* timeline */
.timeline{margin-top:8px}
.tl-item{position:relative;padding:0 0 34px 66px}
.tl-item::before{
  content:"";position:absolute;left:21px;top:48px;bottom:-4px;width:2px;background:var(--c-primary-100);
}
.tl-item:last-child{padding-bottom:0}
.tl-item:last-child::before{display:none}
.tl-num{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  background:var(--g-brand);color:#fff;display:grid;place-items:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;box-shadow:var(--sh-2);
}
.tl-body{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1)}
.tl-body h3{font-size:18px;margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-body h3 em{
  font-style:normal;font-size:12px;font-weight:700;color:var(--c-primary);
  background:var(--c-primary-100);border-radius:var(--r-pill);padding:3px 10px;
}
.tl-body p{font-size:15px;color:var(--c-ink-2);margin:0}

/* kpi */
.kpi-cell{margin-bottom:24px}
.kpi{
  height:100%;background:rgba(255,255,255,.06);border:1px solid rgba(127,209,193,.26);
  border-radius:var(--r-lg);padding:24px;
}
.kpi .val{
  font-size:clamp(28px,3.6vw,36px);font-weight:800;line-height:1.1;
  background:linear-gradient(120deg,#7FD1C1 0%,#FFFFFF 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.kpi .val small{font-size:15px;font-weight:600;margin-left:4px}
.kpi .cap{margin-top:10px;font-size:13.5px;color:rgba(233,243,240,.75);line-height:1.6}

/* tag cloud */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.tag{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:500;
  color:var(--c-primary);background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:9px 18px;box-shadow:var(--sh-1);
  transition:all .24s var(--ease);
}
.tag:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-2px)}
.tag i{font-size:12px;opacity:.7}

/* guarantee bar */
.guard-cell{margin-bottom:20px}
.guard{
  height:100%;background:var(--c-primary-50);border:1px solid var(--c-primary-100);
  border-radius:var(--r-md);padding:22px;
}
.guard i{font-size:20px;color:var(--c-primary)}
.guard h3{font-size:16.5px;margin:14px 0 8px}
.guard p{font-size:14.5px;color:var(--c-ink-2);margin:0}

/* faq */
.faq-list{margin-top:8px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  margin-bottom:14px;overflow:hidden;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item:hover{border-color:var(--c-teal)}
.faq-item.is-open{box-shadow:var(--sh-2);border-color:var(--c-teal)}
.faq-q{
  width:100%;min-height:60px;display:flex;align-items:center;gap:16px;justify-content:space-between;
  background:transparent;border:0;padding:18px 24px;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-q i{color:var(--c-primary);font-size:14px;transition:transform .24s var(--ease);flex:none}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a p{padding:0 24px 20px;margin:0;font-size:15.5px;color:var(--c-ink-2);line-height:1.8}
.faq-item.is-open .faq-a{max-height:360px}

/* cta */
.cta-card{
  position:relative;overflow:hidden;background:var(--g-brand);border-radius:var(--r-xl);
  padding:64px 56px;color:#fff;box-shadow:var(--sh-3);
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.14);
}
.cta-card h2{color:#fff;font-size:clamp(22px,3vw,30px);position:relative;z-index:1}
.cta-card p{color:rgba(255,255,255,.9);margin-top:14px;max-width:640px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;position:relative;z-index:1}
.cta-note{margin-top:18px;font-size:13.5px;color:rgba(255,255,255,.78);position:relative;z-index:1}

/* footer */
.site-footer{background:#08302B;color:#E9F3F0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr 1.4fr;gap:36px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-desc{font-size:14.5px;color:rgba(233,243,240,.72);line-height:1.8;margin:0;max-width:340px}
.footer-title{font-size:15px;color:#fff;margin:0 0 16px;font-weight:700}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14.5px;color:rgba(233,243,240,.76)}
.footer-links a:hover{color:var(--c-accent)}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:rgba(233,243,240,.78);margin-bottom:12px;align-items:flex-start}
.footer-contact i{color:var(--c-teal);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(143,179,172,.95);
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap}
.fb-links a{color:rgba(233,243,240,.76)}
.fb-links a:hover{color:var(--c-accent)}

/* responsive */
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;
    gap:4px;background:#fff;border-bottom:1px solid var(--c-line);padding:16px 24px 24px;
    box-shadow:var(--sh-2);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:12px 0;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a::after{display:none}
  .nav-toggle{display:block}
  .command-search{min-width:0;width:170px}
  .section{padding:72px 0}
  .section.tight{padding:64px 0}
  .cta-card{padding:48px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-hero{min-height:340px;padding:56px 0}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .nav-row{min-height:64px;gap:12px}
  .command-search{display:none}
  .nav-links{top:64px}
  .section{padding:56px 0}
  .btn{width:100%}
  .btn-sm{width:auto}
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .hero-lead{font-size:15.5px}
  .feature-card{padding:22px}
  .tl-item{padding-left:56px}
  .tl-num{width:38px;height:38px;font-size:13px}
  .tl-item::before{left:18px;top:42px}
  .cta-card{padding:36px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .lead-media{margin-top:28px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .feature-card:hover,.tag:hover{transform:none}
}