/* roulang page: index */
:root{
  --primary:#1b3c37;
  --primary-2:#224b44;
  --primary-soft:#e5ece8;
  --accent:#b56a4e;
  --accent-soft:#c77b60;
  --bg:#faf7f2;
  --surface:#ffffff;
  --ink:#1f2321;
  --gray:#5d6a66;
  --line:rgba(27,60,55,0.12);
  --line-bright:rgba(27,60,55,0.2);
  --radius:6px;
  --radius-sm:4px;
  --shadow-sm:0 6px 16px -10px rgba(10,40,32,.14);
  --shadow-lg:0 24px 48px -28px rgba(10,40,32,.38);
  --container:1240px;
  --duration:.35s;
  font-size:16px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-999px;top:0;background:var(--primary);color:#fff;padding:8px 18px;z-index:1000}
.skip-link:focus{left:16px;top:16px}
section[id],div[id]{scroll-margin-top:96px}
.font-serif,h1,h2,h3,h4,.h-serif{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
}

/* Header & Nav */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(250,247,242,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px rgba(10,40,32,.2);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .3s}
.site-header.is-scrolled .header-inner{height:64px}
.logo{flex-shrink:0;display:flex;align-items:center;gap:10px}
.logo-mark{width:34px;height:34px;flex-shrink:0;position:relative;color:var(--primary)}
.logo-mark svg{width:100%;height:100%;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-name{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;font-size:1.3rem;font-weight:700;color:var(--primary);letter-spacing:.02em;white-space:nowrap}
.logo-name span{color:var(--accent)}
.logo-sub{font-size:.68rem;color:var(--gray);letter-spacing:.16em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.main-nav a{
  position:relative;font-size:.93rem;font-weight:500;color:var(--ink);
  padding:8px 2px;white-space:nowrap;line-height:1.4;
  transition:color .25s;
}
.main-nav a::before{
  content:"";position:absolute;left:0;right:100%;bottom:3px;height:2px;
  background:var(--accent);transition:right .28s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::before{right:0}
.main-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:2px}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::before{right:0}
.nav-cta{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#f8f5ef !important;border-radius:40px;
  padding:0 22px;height:42px;font-weight:600;font-size:.9rem;
  transition:background .3s,transform .25s,box-shadow .3s;
  box-shadow:0 4px 12px -4px rgba(27,60,55,.24);
}
.main-nav .nav-cta::before{display:none}
.nav-cta i{font-style:normal;font-size:1.05rem;line-height:1}
.nav-cta:hover{background:var(--accent);color:#fff !important;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(181,106,78,.55)}
.nav-cta:active{transform:translateY(0);box-shadow:none}
.nav-cta:focus-visible{outline:2px dotted #fff;outline-offset:3px}
.nav-cta-mobile{display:none}
.mobile-toggle{display:none;flex-shrink:0;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--primary);transition:border-color .2s,background .2s}
.mobile-toggle:hover{border-color:var(--line-bright);background:var(--primary-soft)}
.mobile-toggle:focus-visible{outline:2px solid var(--accent)}

/* Hero */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  padding:150px 0 90px;overflow:hidden;color:#f4f1ea;
  background-image:linear-gradient(105deg,rgba(6,25,22,.9) 0%,rgba(18,52,46,.72) 54%,rgba(18,52,46,.4) 100%),url('/assets/images/backpic/back-1.jpg');
  background-size:cover;background-position:center 38%;
}
.hero-inner{max-width:820px;position:relative;z-index:3}
.hero-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:.75rem;letter-spacing:.24em;text-transform:uppercase;
  color:#f2e2cc;border:1px solid rgba(242,226,204,.4);border-radius:40px;padding:8px 18px;margin-bottom:30px;
  background:rgba(255,255,255,0.06);backdrop-filter:blur(4px);
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent-soft);display:inline-block}
.hero h1{
  font-size:clamp(2.55rem,6vw,4.85rem);line-height:1.18;font-weight:600;letter-spacing:.01em;margin-bottom:26px;
  text-wrap:balance;
}
.hero h1 .hl{
  color:#f2c9a6;position:relative;white-space:nowrap;
}
.hero h1 .hl::after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.14em;background:rgba(242,201,166,.24);border-radius:4px;z-index:-1}
.hero-sub{
  font-size:1.14rem;line-height:1.9;color:rgba(248,245,239,.92);
  max-width:58ch;margin-bottom:40px;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-bottom:46px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:600;line-height:1.2;border-radius:40px;
  transition:background .3s,transform .25s,box-shadow .3s,color .3s,border-color .3s;
  position:relative;white-space:nowrap;
  font-size:1rem;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-primary{
  background:var(--accent);color:#fff;height:54px;padding:0 34px;
  box-shadow:0 14px 30px -14px rgba(181,106,78,.55);
}
.btn-primary:hover{background:#cf8668;transform:translateY(-3px);box-shadow:0 22px 38px -18px rgba(181,106,78,.6)}
.btn-ghost-light{
  background:rgba(250,247,242,.08);color:#fff;height:54px;padding:0 32px;
  border:1px solid rgba(250,247,242,.46);backdrop-filter:blur(6px);
}
.btn-ghost-light:hover{background:rgba(250,247,242,.16);border-color:rgba(250,247,242,.8);transform:translateY(-3px)}
.btn-outline{
  background:transparent;color:var(--primary);border:1px solid var(--line-bright);height:50px;padding:0 30px;
}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-2px)}
.btn-dark{background:var(--primary);color:#fff;height:52px;padding:0 32px}
.btn-dark:hover{background:var(--primary-2);transform:translateY(-2px);box-shadow:var(--shadow-md, 0 12px 24px -16px rgba(27,60,55,.5))}
.btn i{font-style:normal;font-size:1.2em;line-height:1}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:32px;border-top:1px solid rgba(255,255,255,.16);padding-top:22px;
}
.hero-meta-item{display:flex;flex-direction:column}
.hero-meta-item strong{font-family:"Noto Serif SC",serif;font-size:1.25rem;font-weight:600;color:#fff}
.hero-meta-item strong em{font-style:normal;font-size:.8em;color:rgba(255,255,255,.7);margin-left:4px}
.hero-meta-item span{font-size:.76rem;color:rgba(255,255,255,.65);letter-spacing:.06em;margin-top:2px}
.hero-arrow{position:absolute;bottom:-20px;right:40px;z-index:4;display:flex;justify-content:center;align-items:flex-end}
.hero-scroll{display:flex;flex-direction:column;align-items:center;color:#fff;opacity:.7;gap:8px;font-size:.7rem;letter-spacing:.14em;writing-mode:vertical-rl;text-decoration:none}
.hero-scroll i{display:block;width:1px;height:44px;background:rgba(255,255,255,.36);position:relative;overflow:hidden}
.hero-scroll i::after{content:"";position:absolute;left:0;top:-100%;width:100%;height:100%;background:var(--accent);animation:scrollDrop 2.4s infinite}
@keyframes scrollDrop{0%{top:-100%}55%{top:0}100%{top:100%}}

/* trust bar */
.trust-bar{border-bottom:1px solid var(--line);background:var(--surface)}
.trust-inner{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:18px 32px}
.trust-inner li{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--gray)}
.trust-inner li i{width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
.trust-inner li strong{color:var(--primary);font-weight:600;font-family:"Noto Serif SC",serif}

/* section defaults */
.section{padding:105px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:22px;margin-bottom:60px}
.head-box{max-width:640px}
.head-kicker{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:.74rem;
  font-weight:600;letter-spacing:.18em;text-transform:uppercase;margin-bottom:18px;
}
.head-kicker::before{content:"";width:26px;height:1px;background:var(--accent);display:inline-block}
.head-box h2{font-size:clamp(1.85rem,3.4vw,2.7rem);line-height:1.24;color:var(--primary);font-weight:600;letter-spacing:.01em}
.head-box h2 sup{font-size:.45em;color:var(--accent);vertical-align:.5em;margin-left:6px;font-family:inherit}
.head-desc{margin-top:12px;font-size:1rem;color:var(--gray);max-width:54ch}
.head-more a{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-weight:500;font-size:.95rem;border-bottom:1px solid transparent;transition:border-color .3s,color .3s,gap .3s}
.head-more a:hover{color:var(--accent);border-color:var(--accent);gap:12px}
.arrow-more{display:inline-block;transition:transform .3s}
a:hover .arrow-more{transform:translateX(4px)}

/* Service rows */
.service-area{background:var(--bg)}
.service-row-wrap{display:grid;grid-template-columns:340px 1fr;gap:64px;align-items:start}
.service-insight{position:sticky;top:120px}
.service-media{position:relative;border-radius:var(--radius);overflow:hidden;margin-bottom:26px;box-shadow:var(--shadow-lg)}
.service-media::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(27,60,55,.2),transparent 42%)}
.service-media img{width:100%;height:320px;object-fit:cover;transition:transform .6s ease}
.service-media:hover img{transform:scale(1.04)}
.service-insight h3{font-size:1.4rem;color:var(--primary);font-weight:600;line-height:1.5;margin-bottom:10px}
.service-insight p{color:var(--gray);font-size:.95rem}
.service-insight .about-link{margin-top:18px;display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:.92rem;font-weight:500}
.service-list{border-top:1px solid var(--line)}
.service-row{
  display:grid;grid-template-columns:90px 220px 1fr auto;gap:28px;align-items:center;
  padding:36px 12px;border-bottom:1px solid var(--line);position:relative;
  transition:background .34s,transform .34s,padding-left .34s;
}
.service-row::before{content:"";position:absolute;left:0;top:0;height:100%;width:2px;background:var(--accent);transform:scaleY(0);transform-origin:center;transition:transform .34s}
.service-row:hover{background:rgba(229,236,232,.42);transform:translateX(5px);padding-left:22px}
.service-row:hover::before{transform:scaleY(1)}
.svc-no{font-family:"Noto Serif SC",serif;font-size:1.7rem;color:rgba(27,60,55,.16);font-weight:600;transition:color .32s}
.service-row:hover .svc-no{color:var(--accent)}
.svc-title{font-family:"Noto Serif SC",serif;font-size:1.35rem;color:var(--primary);font-weight:600;line-height:1.5}
.svc-desc{color:var(--gray);font-size:.95rem;line-height:1.85;max-width:42ch}
.svc-link{display:inline-flex;align-items:center;gap:10px;color:var(--primary);font-size:.88rem;font-weight:500;white-space:nowrap;border-bottom:1px dashed var(--line-bright);padding-bottom:4px;transition:color .3s,border-color .3s}
.svc-link:hover{color:var(--accent);border-color:var(--accent)}

/* Data section */
.data-band{
  background:linear-gradient(140deg,var(--primary) 0%,#142f2b 100%);
  color:#f6f2eb;padding:100px 0;position:relative;overflow:hidden;
}
.data-band::after{content:"鲍鱼";position:absolute;right:-2%;bottom:-10%;font-size:clamp(10rem,24vw,22rem);color:rgba(255,255,255,.03);font-family:"Noto Serif SC",serif;font-weight:700;letter-spacing:.06em;pointer-events:none}
.data-band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px);background-size:100% 88px;pointer-events:none;opacity:.2}
.data-layout{display:grid;grid-template-columns:1fr 1.15fr;gap:80px;align-items:center;position:relative;z-index:2}
.data-head h2{color:#ffe9d6;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:600;line-height:1.25;margin-bottom:22px}
.data-head p{color:rgba(255,255,255,.66);line-height:1.95;font-size:.95rem;max-width:42ch}
.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.data-item{padding:34px 28px;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);background:rgba(255,255,255,.04);transition:background .4s,transform .4s,border-color .4s;position:relative;backdrop-filter:blur(4px)}
.data-item:hover{background:rgba(255,255,255,.09);transform:translateY(-5px);border-color:rgba(255,255,255,.24)}
.data-item::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:linear-gradient(90deg,var(--accent-soft),transparent);transform:scaleX(0);transform-origin:left;transition:transform .5s}
.data-item:hover::after{transform:scaleX(1)}
.data-num{font-family:"Noto Serif SC",Serif;font-size:2.65rem;font-weight:700;color:#ffe0bd;line-height:1.2;font-feature-settings:"tnum";letter-spacing:.04em}
.data-unit{font-size:.95rem;color:rgba(255,255,255,.6);font-weight:400;margin-left:6px}
.data-label{font-size:.86rem;color:rgba(255,255,255,.75);margin-top:10px;line-height:1.7}

/* case module */
.case-section{background:var(--bg)}
.case-stack{display:flex;flex-direction:column;gap:80px}
.case-card{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border:1px solid var(--line);background:var(--surface);border-radius:10px;overflow:hidden;transition:box-shadow .45s}
.case-card:hover{box-shadow:var(--shadow-lg)}
.case-card.flip .case-visual{order:2}
.case-visual{position:relative;min-height:360px;overflow:hidden}
.case-visual img{width:100%;height:100%;position:absolute;inset:0;object-fit:cover;transition:transform .6s ease}
.case-card:hover .case-visual img{transform:scale(1.025)}
.case-visual::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(27,60,55,.16),transparent 48%);z-index:1}
.case-visual .case-tag{position:absolute;top:18px;left:18px;z-index:2;background:rgba(250,247,242,.92);color:var(--primary);font-size:.74rem;font-weight:600;border-radius:30px;padding:5px 14px;letter-spacing:.1em}
.case-body{padding:52px 46px;display:flex;flex-direction:column;justify-content:center}
.case-kicker{font-size:.74rem;letter-spacing:.18em;color:var(--accent);font-weight:600;text-transform:uppercase;margin-bottom:16px}
.case-body h3{font-size:1.7rem;line-height:1.4;color:var(--primary);font-weight:600;margin-bottom:18px}
.case-body p{font-size:.97rem;color:var(--gray);line-height:1.95;margin-bottom:20px}
.case-points{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
.case-points li{background:var(--primary-soft);color:var(--primary);font-size:.77rem;padding:4px 14px;border-radius:24px;letter-spacing:.05em}
.case-link{display:inline-flex;align-items:center;justify-content:space-between;gap:16px;color:var(--primary);font-weight:500;border-top:1px solid var(--line);padding-top:18px;margin-top:auto;font-size:.9rem;transition:color .3s}
.case-card:hover .case-link{color:var(--accent)}
.case-link .arrow-more{color:var(--accent)}

/* Season hint band */
.season-band{
  margin-top:80px;border-radius:14px;overflow:hidden;position:relative;
  background-image:url('/assets/images/backpic/back-2.jpg');
  background-size:cover;background-position:center;color:#fff;
}
.season-band .cover-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(9,31,27,.88) 10%,rgba(17,54,47,.66) 55%,rgba(27,60,55,.35) 100%);display:flex;align-items:center;padding:60px 64px}
.season-txt{position:relative;z-index:2;max-width:58%}
.season-txt h3{font-size:1.9rem;font-weight:600;font-family:"Noto Serif SC",serif;line-height:1.45;margin-bottom:12px}
.season-txt p{font-size:.95rem;color:rgba(255,255,255,.78);line-height:1.85;margin-bottom:22px}
.season-txt a{color:#f3c6a4;border-bottom:1px solid rgba(243,198,164,.5);padding-bottom:4px;font-size:.9rem;font-weight:500;display:inline-flex;align-items:center;gap:10px;transition:border-color .3s,color .3s}
.season-txt a:hover{border-color:#f3c6a4;color:#ffd9b8}

/* solution steps */
.solution-area{background:var(--bg)}
.solution-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:70px;align-items:center}
.solution-intro h2{font-size:clamp(1.85rem,3vw,2.5rem);line-height:1.35;color:var(--primary);margin-bottom:18px;font-weight:600}
.solution-intro p{font-size:.98rem;color:var(--gray);line-height:1.95;margin-bottom:22px}
.solution-intro .btn{margin-top:6px}
.steps{position:relative;padding-left:4px;display:flex;flex-direction:column}
.step-item{display:flex;gap:24px;position:relative;padding-bottom:36px}
.step-item:last-child{padding-bottom:0}
.step-item:not(:last-child)::before{content:"";position:absolute;left:24px;top:56px;bottom:6px;width:1px;background:var(--line-bright)}
.visual-step{position:relative;width:50px;height:50px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.step-node{width:44px;height:44px;background:var(--surface);border:1.5px solid var(--line-bright);border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-weight:600;color:var(--primary);transition:all .35s;z-index:2;font-size:1rem}
.step-item:hover .step-node{background:var(--primary);border-color:var(--primary);color:#f7efdf}
.step-node svg{width:18px;height:18px}
.step-content{padding-top:8px}
.step-content h3{font-size:1.18rem;color:var(--primary);font-weight:600;font-family:"Noto Serif SC",serif;margin-bottom:6px}
.step-content p{color:var(--gray);font-size:.9rem;line-height:1.85;max-width:38ch}

/* FAQ */
.faq-area{background:var(--surface)}
.faq-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:76px;align-items:start}
.faq-intro .head-kicker{margin-bottom:14px}
.faq-intro h2{font-size:clamp(1.7rem,3vw,2.2rem);color:var(--primary);line-height:1.35;font-weight:600;margin-bottom:18px}
.faq-intro p{color:var(--gray);font-size:.95rem;line-height:1.9;margin-bottom:22px}
.faq-intro .faq-contact{margin-top:26px;padding:20px;border:1px dashed var(--line-bright);border-radius:8px;color:var(--gray);font-size:.9rem}
.faq-intro .faq-contact strong{display:block;color:var(--primary);font-family:"Noto Serif SC",serif;font-size:1rem;margin-bottom:4px}
.accordion{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);position:relative}
.faq-item[open] .faq-q::after{transform:rotate(45deg);color:var(--accent)}
.faq-item[open] .faq-q{color:var(--primary)}
.faq-q{
  position:relative;width:100%;padding:26px 58px 26px 16px;font-family:"Noto Serif SC",serif;
  font-size:1.06rem;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:16px;text-align:left;
  transition:color .3s;border-radius:0;background:transparent;
}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq-q .faq-no{flex-shrink:0;font-size:.8rem;color:var(--accent);font-family:inherit;opacity:.8;line-height:1}
.faq-q::after{
  content:"+";position:absolute;right:18px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;font-weight:300;color:var(--gray);transition:all .3s;
}
.faq-q:hover{color:var(--primary)}
details.faq-item summary::-webkit-details-marker{display:none}
.faq-a{padding:0 58px 26px 46px;color:var(--gray);font-size:.94rem;line-height:1.95}
.faq-a p{margin-bottom:8px}
.faq-a p:last-child{margin-bottom:0}
.faq-a strong{color:var(--primary);font-weight:600}

/* contact & CTA */
.contact-area{
  position:relative;background:var(--primary);color:#f6f2eb;overflow:hidden;border-radius:0;
}
.contact-area::before{content:"";position:absolute;right:0;top:0;width:58%;height:100%;background-image:url('/assets/images/backpic/back-6.jpg');background-size:cover;background-position:center;opacity:.15;mask-image:linear-gradient(to left,black 60%,transparent 100%);-webkit-mask-image:linear-gradient(to left,black 60%,transparent 100%)}
.contact-area .coverpic-corner{position:absolute;right:4%;bottom:0;width:190px;height:190px;object-fit:cover;object-position:center;border-radius:50% 50% 0 0;opacity:.55;border:1px solid rgba(255,255,255,.2)}
.contact-layout{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1.15fr;gap:80px}
.contact-info h2{font-size:clamp(2rem,3.4vw,2.9rem);color:#fbeeda;font-weight:600;line-height:1.35;margin-bottom:24px}
.contact-info>p{font-size:1rem;color:rgba(255,255,255,.72);line-height:2;max-width:46ch;margin-bottom:34px}
.contact-channels{display:flex;flex-direction:column;gap:14px;margin-bottom:34px}
.channel-line{display:flex;align-items:center;gap:14px;font-size:.94rem;color:rgba(255,255,255,.8)}
.channel-line .ci{width:38px;height:38px;border:1px solid rgba(255,255,255,.3);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#f5c9a8;font-size:1rem;flex-shrink:0}
.channel-line a{color:#ffe3c9;border-bottom:1px dotted rgba(255,227,201,.5);transition:border-color .3s,border-bottom-style .3s}
.channel-line a:hover{border-bottom-style:solid;border-color:#ffe3c9}
.contact-note{font-size:.82rem;color:rgba(255,255,255,.42)}
.contact-form{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:14px;
  padding:42px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 36px 88px -60px rgba(0,0,0,.5);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-group{display:flex;flex-direction:column}
.form-group label{font-size:.8rem;font-weight:500;letter-spacing:.06em;margin-bottom:8px;color:rgba(255,255,255,.66)}
.form-group input,.form-group select,.form-group textarea{
  background:rgba(250,247,242,.1);border:1px solid rgba(255,255,255,.2);border-radius:6px;
  color:#fff;outline:none;min-height:44px;padding:0 14px;width:100%;
  transition:border-color .3s,background .3s,box-shadow .3s;
  appearance:none;-webkit-appearance:none;
}
.form-group select{cursor:pointer;background-image:linear-gradient(45deg,transparent 50%,#fff 50%),linear-gradient(135deg,#fff 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.form-group select option{color:var(--ink);background:#fff}
.form-group option:first-child{color:rgba(0,0,0,.4)}
.form-group input::placeholder,.form-group textarea::placeholder{color:rgba(255,255,255,.3)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.16);box-shadow:0 0 0 3px rgba(255,255,255,.08)}
.form-group textarea{min-height:86px;padding:12px 14px;resize:vertical}
.form-reason{font-size:.77rem;color:rgba(255,255,255,.4);margin-top:12px;letter-spacing:.04em}
.form-submit-row{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:22px}
.btn-submit{background:var(--accent);color:#fff;min-height:50px;padding:0 30px;border-radius:40px;font-weight:600;letter-spacing:.03em;flex-shrink:0;transition:all .3s}
.btn-submit:hover{background:#cf8668;transform:translateY(-2px);box-shadow:0 14px 26px -14px rgba(181,106,78,.7)}
.btn-submit:active{transform:translateY(1px)}
.form-privacy{font-size:.75rem;color:rgba(255,255,255,.4);line-height:1.7}

/* footer */
.site-footer{background:#0e2c27;color:rgba(255,255,255,.72);position:relative}
.footer-cta-strip{border-bottom:1px solid rgba(255,255,255,.08);padding:56px 0 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px}
.footer-cta-strip h2{font-family:"Noto Serif SC",serif;font-size:clamp(1.4rem,2.4vw,1.9rem);color:#f6e7d4;font-weight:600;line-height:1.6}
.footer-cta-strip p{color:rgba(255,255,255,.45);font-size:.88rem;margin-top:6px}
.footer-main{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:50px;padding:60px 0 46px}
.footer-brand .logo-name{color:#fbf2e6}
.footer-brand .logo-name span{color:#ddb287}
.footer-brand-text{max-width:35ch;margin-top:14px;font-size:.88rem;line-height:1.9;color:rgba(255,255,255,.5)}
.footer-col h4{color:#f6e7d4;font-size:1rem;font-weight:600;font-family:"Noto Serif SC",serif;margin-bottom:18px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:rgba(255,255,255,.58);font-size:.89rem;transition:color .3s,padding-left .3s}
.footer-col a:hover{color:#edba95;padding-left:5px}
.footer-col li{display:flex;align-items:flex-start;gap:8px;font-size:.88rem;color:rgba(255,255,255,.5);line-height:1.7}
.footer-col li i{color:#ddb287;font-style:normal}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:22px 0 26px;gap:14px}
.footer-copy{font-size:.78rem;color:rgba(255,255,255,.32)}
.footer-cert{font-size:.78rem;color:rgba(255,255,255,.3)}
.backtop{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border:1px solid var(--line);
  border-radius:50%;background:rgba(255,255,255,.86);backdrop-filter:blur(8px);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:1.1rem;z-index:800;
  opacity:0;visibility:hidden;transform:translateY(10px);transition:all .35s;
}
.backtop.show{opacity:1;visibility:visible;transform:translateY(0)}
.backtop:hover{border-color:var(--primary);background:#fff;box-shadow:var(--shadow-sm)}
.backtop:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .75s ease,transform .75s ease}
.reveal.in-view{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .service-row{transform:none!important}
  html{scroll-behavior:auto}
}

/* responsive tablets */
@media (max-width:1024px){
  .service-row-wrap,.data-layout,.solution-grid,.faq-layout,.contact-layout{gap:44px;grid-template-columns:1fr}
  .service-row{grid-template-columns:60px 1fr 1.4fr;row-gap:10px}
  .svc-link{grid-column:2/5}
  .data-item{padding:26px 22px}
  .season-txt{max-width:72%}
  .case-body{padding:38px 30px}
  .contact-area::before{width:100%;opacity:.08}
  .coverpic-corner{display:none}
  .form-row{grid-template-columns:1fr 1fr}
  .head-more{width:100%}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:68px 0}
  .trust-inner{padding:14px 20px;gap:8px;justify-content:flex-start}
  .header-inner{height:66px}
  .site-header.is-scrolled .header-inner{height:62px}
  .mobile-toggle{display:flex}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:min(360px,86vw);margin:0;
    background:#fbf8f3;box-shadow:-34px 0 70px -20px rgba(0,0,0,.26);
    flex-direction:column;align-items:flex-start;justify-content:flex-start;
    gap:6px;padding:92px 34px 34px;z-index:990;
    transform:translateX(105%);transition:transform .4s cubic-bezier(.22,.61,.36,1);
    border-left:1px solid var(--line);
  }
  .site-header.nav-open .main-nav{transform:none}
  body.nav-lock{overflow:hidden}
  .site-header.nav-open .mobile-toggle{position:relative;z-index:995;border-color:var(--primary)}
  .mobile-toggle .ic{width:20px;height:16px;position:relative}
  .mobile-toggle .ic span{position:absolute;left:0;width:100%;height:2px;background:var(--primary);border-radius:2px;transition:all .3s}
  .mobile-toggle .ic span:nth-child(1){top:0}
  .mobile-toggle .ic span:nth-child(2){top:7px}
  .mobile-toggle .ic span:nth-child(3){top:14px}
  .site-header.nav-open .mobile-toggle .ic span:nth-child(1){top:7px;transform:rotate(45deg)}
  .site-header.nav-open .mobile-toggle .ic span:nth-child(2){opacity:0}
  .site-header.nav-open .mobile-toggle .ic span:nth-child(3){top:7px;transform:rotate(-45deg)}
  .main-nav a,.main-nav .nav-cta{display:flex;width:100%;font-size:1.06rem;padding:12px 0;border-bottom:1px solid var(--line);border-radius:0}
  .main-nav .nav-cta{justify-content:center;margin-top:10px;height:50px;color:#fff !important;border-bottom:none;font-size:.96rem}
  .main-nav a::before{display:none}
  .main-nav .nav-cta-mobile{display:flex}
  .nav-cta-desktop{display:none}
  .hero{min-height:auto;background-position:center;background-attachment:scroll}
  .hero{background-image:linear-gradient(0deg,rgba(5,24,21,.94),rgba(18,52,46,.78)),url('/assets/images/backpic/back-1.jpg')}
  .hero-inner{width:100%}
  .hero-tag{font-size:.66rem;padding:6px 12px}
  .hero h1{font-size:clamp(2.2rem,8.4vw,3.3rem)}
  .hero-sub{font-size:1rem}
  .hero-meta-break{display:none}
  .hero-meta{gap:18px;padding-top:18px}
  .hero-meta-item strong{font-size:1.05rem}
  .section-head{margin-bottom:40px}
  .head-box h2{font-size:1.72rem}
  .service-list{margin-top:0}
  .service-row{grid-template-columns:42px 1fr;padding:26px 4px;gap:10px 14px}
  .svc-order{order:2}
  .service-row:hover{transform:none;padding-left:4px}
  .service-row:hover .svc-no{color:var(--accent)}
  .svc-title,.svc-num{grid-column:1/3}
  .svc-no{font-size:1.3rem}
  .svc-title{font-size:1.2rem;grid-column:2/4}
  .svc-desc{grid-column:2/4;font-size:.89rem;max-width:none}
  .svc-link{grid-column:2/4;margin-top:2px}
  .service-insight{position:static;margin-bottom:30px}
  .service-media img{height:220px}
  .case-card{grid-template-columns:1fr}
  .case-vertical-flip .case-visual{order:1}
  .case-vertical-flip .case-body{order:2}
  .case-visual{min-height:220px;height:260px}
  .case-body{padding:30px 24px}
  .case-card.flip .case-visual{order:0}
  .case-card.flip .case-body{order:1}
  .season-band .cover-mask{padding:38px 24px}
  .season-txt{max-width:100%}
  .season-txt h3{font-size:1.35rem}
  .case-stack{gap:40px}
  .data-layout{gap:36px}
  .data-numbers{gap:14px}
  .data-grid{grid-template-columns:1fr 1fr}
  .data-num{font-size:2rem}
  .data-item{padding:24px 18px}
  .faq-layout{gap:30px}
  .faq-a{padding:0 44px 22px 30px}
  .faq-q{padding-left:4px}
  .contact-form{padding:28px 22px}
  .contact-layout{gap:34px}
  .contact-channels{gap:12px}
  .footer-main{grid-template-columns:1fr 1fr;gap:32px 24px;padding:46px 0 34px}
  .footer-cta-strip h2{font-size:1.4rem}
}
@media (max-width:520px){
  .ui-form-row,.form-row{grid-template-columns:1fr}
  .header-logo-text .logo-sub{display:none}
  .logo-name{font-size:1.12rem}
  .nav-cta{width:100%;max-width:none}
  .nav-cta-mobile{height:48px}
  .section{padding:56px 0}
  .container{padding:0 18px}
  .hero{padding-top:120px;padding-bottom:48px}
  .hero-sub{margin-bottom:30px}
  .hero-cta-wrap{flex-direction:column;display:flex;gap:16px;margin-bottom:34px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-actions .btn-outline{margin-left:0}
  .hero-meta-items{flex-wrap:wrap;gap:14px 16px}
  .hero-meta-item strong{font-size:.95rem}
  .data-grid{grid-template-columns:1fr}
  .data-label{font-size:.82rem}
  .stats-display{grid-template-columns:1fr}
  .text-2col{display:block}
  .footer-main{grid-template-columns:1fr;gap:28px;padding:40px 0 26px}
  .footer-col{order:2}
  .footer-brand{order:0}
  .backtop{bottom:16px;right:16px;width:42px;height:42px}
  .service-row{grid-template-columns:1fr}
  .svc-title{grid-column:1/2}
  .svc-desc{grid-column:1/2}
  .svc-link{grid-column:1/2}
  .svc-no{display:none}
}

/* roulang page: category1 */
:root{
  --primary:#1b3c37;
  --primary-2:#224b44;
  --primary-soft:#e5ece8;
  --accent:#b56a4e;
  --accent-soft:#c77b60;
  --bg:#faf7f2;
  --surface:#ffffff;
  --ink:#1f2321;
  --gray:#5d6a66;
  --line:rgba(27,60,55,0.12);
  --line-bright:rgba(27,60,55,0.2);
  --radius:6px;
  --radius-sm:4px;
  --shadow-sm:0 6px 16px -10px rgba(10,40,32,.14);
  --shadow-lg:0 24px 48px -28px rgba(10,40,32,.38);
  --container:1240px;
  --duration:.35s;
  font-size:16px;
}
html{scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
section[id],div[id],span[id]{scroll-margin-top:100px}
/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:rgba(250,247,242,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(250,247,242,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -24px rgba(10,40,32,.2);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .3s}
.site-header.is-scrolled .header-inner{height:64px}
.logo{flex-shrink:0;display:flex;align-items:center;gap:10px}
.logo-mark{width:34px;height:34px;flex-shrink:0;color:var(--primary)}
.logo-mark svg{width:100%;height:100%;display:block}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-name{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;font-size:1.3rem;font-weight:700;color:var(--primary);letter-spacing:.02em;white-space:nowrap}
.logo-name span{color:var(--accent)}
.logo-sub{font-size:.68rem;color:var(--gray);letter-spacing:.16em;text-transform:uppercase;margin-top:2px}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.main-nav a{
  position:relative;font-size:.93rem;font-weight:500;color:var(--ink);
  padding:8px 2px;white-space:nowrap;line-height:1.4;transition:color .25s;
}
.main-nav a::before{
  content:"";position:absolute;left:0;right:100%;bottom:3px;height:2px;
  background:var(--accent);transition:right .28s ease;border-radius:2px;
}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::before{right:0}
.main-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:6px;border-radius:2px}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::before{right:0}
.nav-cta{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);color:#f8f5ef !important;border-radius:40px;
  padding:0 22px;height:42px;font-weight:600;font-size:.9rem;
  transition:background .3s,transform .25s,box-shadow .3s;
  box-shadow:0 4px 12px -4px rgba(27,60,55,.24);
}
.main-nav .nav-cta::before{display:none}
.nav-cta i{font-style:normal;font-size:1.05rem;line-height:1}
.nav-cta:hover{background:var(--accent);color:#fff !important;transform:translateY(-1px);box-shadow:0 12px 24px -12px rgba(181,106,78,.55)}
.nav-cta:active{transform:translateY(0);box-shadow:none}
.nav-cta:focus-visible{outline:2px dotted #fff;outline-offset:3px}
.mobile-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:6px;background:transparent;color:var(--primary);
}
.mobile-toggle:hover{border-color:var(--line-bright);background:var(--primary-soft)}
.mobile-toggle:focus-visible{outline:2px solid var(--accent)}
.mobile-nav{
  display:none;position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);
  background:var(--bg);z-index:1200;padding:30px 24px;flex-direction:column;
  box-shadow:var(--shadow-lg);transform:translateX(105%);transition:transform .35s cubic-bezier(.22,.9,.34,1);
}
.mobile-nav.open{transform:translateX(0)}
.mobile-nav a{display:block;padding:13px 4px;font-size:1.02rem;border-bottom:1px solid var(--line);color:var(--ink)}
.mobile-nav a:hover, .mobile-nav a.active{color:var(--accent)}
.mobile-nav .nav-cta{display:inline-flex;width:auto;margin-top:18px;justify-content:center}
.mobile-nav-close{
  align-self:flex-end;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;color:var(--gray);margin-bottom:8px;
}
.mobile-nav-close:focus-visible{outline:2px solid var(--accent)}
.mobile-nav-backdrop{
  position:fixed;inset:0;background:rgba(15,28,24,.4);backdrop-filter:blur(2px);z-index:1150;opacity:0;pointer-events:none;transition:opacity .3s;
}
.mobile-nav-backdrop.open{opacity:1;pointer-events:auto}
/* shared btn */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-weight:600;line-height:1.2;border-radius:40px;
  transition:background .3s,transform .25s,box-shadow .3s,color .3s,border-color .3s;
  position:relative;white-space:nowrap;font-size:1rem;
}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff;height:52px;padding:0 32px;box-shadow:0 14px 30px -14px rgba(181,106,78,.5)}
.btn-primary:hover{background:#cf8668;transform:translateY(-3px);box-shadow:0 22px 38px -18px rgba(181,106,78,.6);color:#fff}
.btn-outline{
  background:transparent;color:var(--primary);border:1px solid var(--line-bright);
  height:50px;padding:0 28px;font-size:.95rem;
}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);transform:translateY(-2px)}
/* category hero */
.page-hero{
  background:linear-gradient(120deg,#f0ede4 0%,#faf7f2 62%,#e5ece8 100%);
  padding:150px 0 58px;
  border-bottom:1px solid var(--line);
}
.cat-breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:.85rem;color:var(--gray);margin-bottom:30px}
.cat-breadcrumb a{transition:color .2s}
.cat-breadcrumb a:hover{color:var(--accent)}
.cat-breadcrumb span{margin:0 3px;color:var(--line-bright)}
.cat-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:54px;align-items:center}
.cat-kicker{display:inline-block;font-size:.78rem;letter-spacing:.18em;color:var(--accent);margin-bottom:18px;border:1px solid rgba(181,106,78,.35);padding:6px 16px;border-radius:40px;background:rgba(255,255,255,.36)}
.cat-hero-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  font-size:clamp(2rem,4vw,3.3rem);
  line-height:1.28;color:var(--primary);font-weight:700;
  letter-spacing:.01em;text-wrap:balance;
  margin-bottom:20px;
}
.cat-hero-title em{font-style:normal;color:var(--accent);position:relative}
.cat-hero-desc{max-width:60ch;font-size:1.04rem;line-height:1.95;color:#3d4843;margin-bottom:28px}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta-line{margin-top:34px;display:flex;flex-wrap:wrap;gap:18px 30px;color:var(--gray);font-size:.86rem}
.hero-meta-line i{display:inline-block;margin-right:7px;color:var(--accent);font-style:normal}
.cat-hero-media{position:relative}
.cat-hero-media-fig{
  background:#fff;border:1px solid var(--line);padding:12px;
  transform:rotate(1.8deg);box-shadow:var(--shadow-lg);
  transition:transform .4s ease;
}
.cat-hero-media-fig:hover{transform:rotate(.4deg) scale(1.01)}
.cat-hero-media-fig img{width:100%;height:360px;object-fit:cover;border-radius:2px;filter:saturate(.94)}
.cat-hero-media-fig figcaption{font-size:.85rem;color:var(--gray);text-align:center;padding:12px 6px 4px;line-height:1.6}
.cat-hero-media .stamp{
  position:absolute;right:-8px;bottom:34px;width:96px;height:96px;border-radius:50%;
  background:var(--accent);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:.73rem;line-height:1.5;box-shadow:var(--shadow-lg);border:4px solid #faf7f2;text-align:center;
}
/* filter strip */
.cat-filter-strip{
  background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:76px;z-index:80;
  box-shadow:0 12px 24px -32px rgba(10,40,32,.16);
}
.cat-filter-inner{display:flex;align-items:center;gap:12px;min-height:66px;overflow-x:auto;scrollbar-width:none}
.cat-filter-inner::-webkit-scrollbar{display:none}
.cat-filter-label{color:var(--gray);font-size:.9rem;flex-shrink:0;padding-right:8px}
.cat-filter-inner a{
  flex-shrink:0;font-size:.9rem;font-weight:500;color:var(--ink);
  border:1px solid var(--line-bright);border-radius:40px;padding:8px 18px;
  transition:all .25s;
}
.cat-filter-inner a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
.cat-filter-inner a:focus-visible{outline:2px solid var(--accent)}
.cat-filter-inner a.filter-current{background:var(--primary);color:#fff;border-color:var(--primary)}
/* main catalog section */
.catalog-main{padding:110px 0 80px;background:var(--bg)}
.catalog-intro{
  display:grid;grid-template-columns:.85fr 1.15fr;gap:44px;align-items:end;
  margin-bottom:72px;
}
.catalog-intro h2{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.3;color:var(--primary);font-weight:700;
}
.catalog-intro h2 span{display:block;font-size:1.05rem;font-family:inherit;color:var(--accent);letter-spacing:.1em;margin-bottom:14px;font-weight:500}
.catalog-intro p{max-width:62ch;color:var(--gray);line-height:1.95}
/* alternating product block */
.focus-row{
  display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:stretch;
  margin-bottom:90px;
}
.focus-media{
  position:relative;border-radius:var(--radius);overflow:hidden;min-height:330px;
  border:1px solid var(--line);
}
.focus-media img{width:100%;height:100%;min-height:380px;object-fit:cover;transition:transform .55s cubic-bezier(.23,1,.32,1);filter:saturate(.9)}
.focus-row:hover .focus-media img{transform:scale(1.03)}
.focus-media .media-tag{
  position:absolute;left:18px;top:18px;z-index:2;background:rgba(250,247,242,.9);
  border-radius:40px;font-size:.78rem;padding:5px 16px;color:var(--primary);
  border:1px solid rgba(255,255,255,.7);backdrop-filter:blur(6px);
}
.focus-body{
  display:flex;flex-direction:column;justify-content:center;
  padding:20px 0 24px;
}
.focus-body .f-label{
  display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-weight:600;
  font-size:.86rem;letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase;
}
.focus-body .f-label i{width:26px;height:1.6px;background:var(--accent);display:inline-block}
.focus-body h3{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  font-size:clamp(1.5rem,2.4vw,2.1rem);
  line-height:1.36;color:var(--primary);margin-bottom:14px;
}
.focus-lead{
  color:var(--ink);font-size:1rem;line-height:1.9;margin-bottom:18px;
}
.focus-lead strong{color:var(--accent);font-weight:600}
.focus-desc{
  color:var(--gray);line-height:1.95;margin-bottom:20px;font-size:.94rem;
}
.focus-feature{
  display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;
}
.focus-feature li{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--primary-soft);border:1px solid rgba(27,60,55,.05);
  border-radius:40px;padding:5px 14px;font-size:.85rem;color:#2c4943;
}
.focus-feature li::before{content:"﹡";color:var(--accent);font-size:1rem}
.focus-cta-row{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.focus-cta-row .link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;color:var(--primary);font-size:.88rem;
  transition:gap .25s,color .25s;
}
.focus-cta-row .link-arrow:hover{gap:12px;color:var(--accent)}
.focus-row.b{grid-template-columns:1fr 1fr}
.focus-row.b .focus-body{order:1}
.focus-row.b .focus-media{order:2}
/* spec table */
.spec-table-wrap{
  background:#fff;border:1px solid var(--line);border-radius:10px;
  box-shadow:var(--shadow-sm);padding:34px;
  margin:90px 0 20px;
}
.graph-badge{
  display:inline-flex;gap:8px;align-items:center;
  color:var(--accent);font-size:.84rem;font-weight:600;margin-bottom:38px;
}
.graph-badge::before{content:"";width:14px;height:2px;background:var(--accent)}
.spec-table-title{font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;font-size:clamp(1.35rem,2.3vw,2rem);color:var(--primary);line-height:1.4;margin-bottom:14px}
.spec-table-desc{color:var(--gray);line-height:1.9;max-width:68ch;margin-bottom:28px}
.table-scroll{overflow-x:auto;border-radius:6px;border:1px solid var(--line)}
.spec-table{width:100%;border-collapse:collapse;min-width:760px;font-size:.96rem;background:#fff}
.spec-table th{
  background:var(--primary);color:#fff;text-align:left;font-weight:600;
  padding:14px 18px;white-space:nowrap;border-right:1px solid rgba(255,255,255,.08);
}
.spec-table td{padding:15px 18px;border-bottom:1px solid var(--line);color:var(--ink);line-height:1.75;vertical-align:top}
.spec-table tr:nth-child(even) td{background:#f9f8f4}
.spec-table tr:hover td{background:rgba(229,236,232,.5)}
.spec-note{font-size:.84rem;color:var(--gray);margin-top:16px;line-height:1.8}
/* faq */
.faq-section{background:var(--surface);padding:105px 0;border-top:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:56px}
.faq-intro h2{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  font-size:clamp(1.8rem,3vw,2.5rem);color:var(--primary);line-height:1.3;
  margin-bottom:18px;
}
.faq-intro p{color:var(--gray);line-height:1.9}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;gap:20px;justify-content:space-between;align-items:center;text-align:left;
  padding:22px 0;font-size:1rem;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .25s;
}
.faq-q:hover{color:var(--accent)}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.faq-q .faq-indicator{
  flex-shrink:0;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line-bright);transition:transform .35s,background .3s,border-color .3s;
}
.faq-q .faq-indicator svg{width:16px;height:16px}
.faq-q[aria-expanded="true"] .faq-indicator{transform:rotate(180deg);background:var(--primary-soft)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s cubic-bezier(.4,0,.2,1);padding-right:34px}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 0 24px;color:var(--gray);line-height:1.9;font-size:.95rem}
.faq-a p + p{padding-top:0}
/* contact */
.contact-section{
  background:linear-gradient(150deg,#142f2b 0%,#1d4039 60%,#2a584d 100%);
  color:#f2eee6;padding:110px 0 60px;position:relative;overflow:hidden;
}
.contact-section::before{
  content:"";position:absolute;right:-90px;top:-20px;width:420px;height:420px;
  background:url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  opacity:.08;border-radius:50%;filter:grayscale(.8);
}
.contact-heading h2{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  font-size:clamp(1.8rem,3vw,2.8rem);line-height:1.35;margin-bottom:16px;
}
.contact-heading p{color:rgba(242,238,230,.78);line-height:1.9;max-width:62ch}
.contact-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;margin-top:54px;align-items:start}
.contact-form{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  padding:30px;border-radius:10px;backdrop-filter:blur(8px);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:.86rem;font-weight:500;color:rgba(250,247,242,.8);margin-bottom:8px}
.form-control{
  width:100%;height:48px;background:rgba(250,247,242,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:7px;color:#f4f1ea;padding:0 16px;transition:border-color .2s,background .2s,box-shadow .2s;
}
textarea.form-control{height:112px;padding:13px 16px;resize:vertical;line-height:1.7}
.form-control::placeholder{color:rgba(235,240,236,.4)}
.form-control:focus{
  outline:none;border-color:#d99b7e;background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(181,106,78,.18);
}
.form-control:focus-visible{border-color:#d99b7e}
select.form-control{appearance:none;background-image:linear-gradient(45deg,transparent 50%,#c77b60 50%),linear-gradient(135deg,#c77b60 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px;background-repeat:no-repeat}
select.form-control option{color:var(--ink);background:#fff}
.form-message{
  display:none;margin-top:14px;padding:10px 14px;border-radius:6px;
  font-size:.88rem;line-height:1.7;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);color:#f1d5c0;
}
.form-message.show{display:block}
.contact-side{display:flex;flex-direction:column;gap:26px}
.contact-side-title{font-size:1.02rem;color:#f4e2c8;letter-spacing:.08em;font-weight:600;margin-bottom:12px}
.contact-side-list li{
  display:flex;gap:14px;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.1);
  color:rgba(242,238,230,.82);font-size:.96rem;line-height:1.75;
}
.contact-side-list li .ico{flex-shrink:0;color:#d99b7e;width:22px;text-align:center;font-style:normal}
.contact-side-note{
  background:rgba(255,255,255,.05);border:1px dashed rgba(255,255,255,.2);
  padding:16px 18px;border-radius:8px;color:rgba(242,238,230,.72);
  line-height:1.9;font-size:.89rem;
}
/* footer */
.site-footer{background:#142e29;color:#d8ded9;padding-top:64px;position:relative}
.footer-cta-strip{
  display:flex;justify-content:space-between;align-items:center;gap:32px;
  border-bottom:1px solid rgba(255,255,255,.12);padding-bottom:48px;margin-bottom:48px;
}
.footer-cta-strip h2{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  color:#f4eee5;line-height:1.5;font-size:clamp(1.4rem,2.2vw,1.9rem);margin-bottom:8px;
}
.footer-cta-strip p{color:rgba(216,222,217,.72)}
.footer-main{display:grid;grid-template-columns:2fr 1fr 1.2fr 1fr;gap:40px;margin-bottom:52px}
.footer-brand-text{color:rgba(216,222,217,.7);margin-top:18px;font-size:.92rem;line-height:1.9;max-width:34ch}
.footer-col h4{
  color:#f4eee5;font-size:.96rem;margin-bottom:18px;
  padding-bottom:10px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-col li{margin-bottom:11px;color:rgba(216,222,217,.76);line-height:1.6}
.footer-col li a:hover{color:#f1c9a8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:rgba(216,222,217,.5);font-size:.84rem;
}
.footer-backtop{
  width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.35);
  color:#d8ded9;display:flex;align-items:center;justify-content:center;
  transition:all .3s;position:absolute;right:24px;bottom:86px;
}
.footer-backtop:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-4px)}
.footer-backtop:focus-visible{outline:2px solid var(--accent)}
/* revealed animation */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none;transition:none}
}
/* responsive */
@media (max-width:1024px){
  .cat-hero-grid{grid-template-columns:1fr;gap:40px}
  .cat-hero-media{max-width:560px}
  .catalog-intro{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr 1fr}
  .main-nav{display:none}
  .mobile-toggle{display:flex}
  .mobile-nav{display:flex}
  .mobile-nav .nav-cta{display:inline-flex}
}
@media (max-width:820px){
  .focus-row,.focus-row.b{grid-template-columns:1fr}
  .focus-row{margin-bottom:70px}
  .focus-row.b .focus-body{order:1}
  .focus-row.b .focus-media{order:2}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .contact-layout{grid-template-columns:1fr}
  .spec-table-wrap{padding:28px 18px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .header-inner{height:66px}
  .logo-name{font-size:1.02rem}
  .logo-sub{display:none}
  .nav-cta{padding:0 22px;font-size:.86rem}
  .cat-filter-strip{top:67px}
  .page-hero{padding:120px 0 44px}
  .cat-hero-title{font-size:1.9rem;line-height:1.36}
  .cat-hero-media-fig img{height:240px}
  .cat-hero-media .stamp{width:78px;height:78px;font-size:.64rem;border-width:3px}
  .catalog-main{padding:80px 0 48px}
  .focus-media img,.focus-media{min-height:280px}
  .form-row{grid-template-columns:1fr}
  .footer-cta-strip{flex-direction:column;align-items:flex-start}
  .footer-main{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column}
  .footer-backtop{right:16px;bottom:110px}
  .contact-heading p{font-size:.95rem}
}