:root{
  --ink:#17130e;
  --ink-2:#231d15;
  --ink-3:#33291c;
  --cream:#f5efe4;
  --paper:#fffdf8;
  --gold:#b2873a;
  --gold-2:#d4ae62;
  --gold-3:#7d5c22;
  --red:#8f2f24;
  --line:rgba(23,19,14,.12);
  --line-l:rgba(255,255,255,.16);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Microsoft YaHei UI","Helvetica Neue",Arial,sans-serif;
  --shadow:0 18px 48px rgba(23,19,14,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
  --maxw:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.85;
  letter-spacing:.02em;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
::selection{background:var(--gold);color:#fff}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:4px}
[id]{scroll-margin-top:96px}

.skip-link{
  position:fixed;top:10px;left:50%;transform:translate(-50%,-160%);z-index:1200;
  background:var(--gold);color:#fff;padding:12px 26px;border-radius:999px;
  font-size:14px;letter-spacing:.16em;transition:transform .3s var(--ease);
}
.skip-link:focus{transform:translate(-50%,0)}

.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:100%;z-index:1100;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold-3),var(--gold-2));
  will-change:transform;
}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--cream)}
::-webkit-scrollbar-thumb{background:var(--gold-3);border-radius:6px}

.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.serif{font-family:var(--serif)}

/* ---------- 品牌头部 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  transition:background .35s var(--ease),box-shadow .35s var(--ease),padding .35s var(--ease),transform .45s var(--ease);
  padding:18px 0;
  background:linear-gradient(rgba(23,19,14,.55),rgba(23,19,14,0));
}
.site-header.hidden{transform:translateY(-104%)}
.site-header.scrolled{
  background:rgba(23,19,14,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  padding:10px 0;
  box-shadow:0 10px 30px rgba(23,19,14,.22);
}
.site-header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;align-items:center;gap:12px;color:#fff}
.logo-mark{
  width:46px;height:46px;flex:0 0 46px;border-radius:50%;
  background:radial-gradient(circle at 30% 28%,var(--gold-2),var(--gold) 55%,var(--gold-3));
  display:flex;align-items:center;justify-content:center;
  font-family:var(--serif);font-size:22px;color:#fff;font-weight:700;
  box-shadow:0 6px 18px rgba(178,135,58,.5);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-family:var(--serif);font-size:21px;font-weight:700;letter-spacing:.16em}
.logo-text span{font-size:10px;letter-spacing:.34em;color:var(--gold-2);text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav a{
  color:rgba(255,255,255,.86);font-size:15px;letter-spacing:.14em;position:relative;
  padding:6px 0;transition:color .3s;
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--gold-2);transition:width .35s var(--ease);
}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.header-cta{
  padding:11px 26px;border:1px solid rgba(255,255,255,.55);color:#fff;
  font-size:14px;letter-spacing:.18em;border-radius:999px;
  transition:all .35s var(--ease);
}
.header-cta:hover{background:var(--gold);border-color:var(--gold);transform:translateY(-2px);box-shadow:0 12px 28px rgba(178,135,58,.4)}
.nav-toggle{display:none;width:40px;height:40px;position:relative;z-index:960}
.nav-toggle span{display:block;position:absolute;left:8px;right:8px;height:2px;background:#fff;transition:.35s var(--ease)}
.nav-toggle span:nth-child(1){top:12px}
.nav-toggle span:nth-child(2){top:19px}
.nav-toggle span:nth-child(3){top:26px}
.nav-toggle.open span:nth-child(1){top:19px;transform:rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){top:19px;transform:rotate(-45deg)}

/* ---------- 首页 Hero ---------- */
.hero{
  position:relative;min-height:100vh;min-height:100svh;
  display:flex;align-items:center;
  color:#fff;overflow:hidden;
  background:var(--ink);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-media{position:absolute;inset:0;object-fit:cover;width:100%;height:100%}
.hero-video{position:absolute;inset:0;object-fit:cover;width:100%;height:100%}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(23,19,14,.45) 0%,rgba(23,19,14,.28) 40%,rgba(23,19,14,.82) 100%);
}
.hero-inner{position:relative;z-index:2;width:100%;padding-top:120px;padding-bottom:90px}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.badge-chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.35);border-radius:999px;
  padding:8px 18px;font-size:13px;letter-spacing:.16em;color:rgba(255,255,255,.92);
  background:rgba(255,255,255,.06);backdrop-filter:blur(8px);
}
.badge-chip i{width:7px;height:7px;border-radius:50%;background:var(--gold-2);box-shadow:0 0 0 4px rgba(212,174,98,.18)}
.hero-title{
  font-family:var(--serif);
  font-size:clamp(44px,7.2vw,92px);
  font-weight:700;line-height:1.22;letter-spacing:.08em;
  text-shadow:0 6px 40px rgba(0,0,0,.45);
  margin-bottom:26px;
}
.hero-title em{font-style:normal;color:var(--gold-2)}
.hero-sub{
  max-width:640px;font-size:clamp(16px,1.6vw,19px);
  color:rgba(255,255,255,.88);letter-spacing:.08em;line-height:2;margin-bottom:44px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:18px;align-items:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:16px 42px;border-radius:999px;font-size:15px;letter-spacing:.22em;
  transition:all .35s var(--ease);border:1px solid transparent;
}
.btn-gold{background:linear-gradient(135deg,var(--gold-2),var(--gold) 55%,var(--gold-3));color:#fff;box-shadow:0 16px 36px rgba(178,135,58,.42)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 22px 44px rgba(178,135,58,.55)}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);transform:translateY(-3px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--ink-3);transform:translateY(-3px)}
.hero-scroll{
  position:absolute;bottom:34px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;color:rgba(255,255,255,.8);
  font-size:12px;letter-spacing:.3em;z-index:2;
}
.hero-scroll .line{width:1px;height:52px;background:linear-gradient(rgba(255,255,255,.8),transparent);position:relative;overflow:hidden}
.hero-scroll .line::after{
  content:"";position:absolute;top:-50%;left:0;width:100%;height:50%;
  background:var(--gold-2);animation:scrollLine 1.8s infinite;
}
@keyframes scrollLine{0%{top:-50%}100%{top:110%}}

.hero-bg{
  background-image:url("/assets/img/hero-poster.jpg");
  background-size:cover;background-position:center;
}
.hero-video{opacity:0;transition:opacity 1.2s var(--ease)}
.hero-video.ready{opacity:1}
.video-toggle{
  position:absolute;right:28px;bottom:34px;z-index:3;
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 20px;border-radius:999px;
  border:1px solid rgba(255,255,255,.4);background:rgba(23,19,14,.42);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  color:#fff;font-size:12px;letter-spacing:.18em;
  opacity:0;visibility:hidden;transition:.35s var(--ease);
}
.video-toggle.show{opacity:1;visibility:visible}
.video-toggle:hover{background:rgba(23,19,14,.7);border-color:var(--gold-2)}
.video-toggle .ico{width:0;height:0;display:inline-block}
.video-toggle[data-state="playing"] .ico{
  border-left:9px solid #fff;border-top:6px solid transparent;border-bottom:6px solid transparent;
}
.video-toggle[data-state="paused"] .ico{
  width:9px;height:11px;border-left:3px solid #fff;border-right:3px solid #fff;
}

/* ---------- 区块通用 ---------- */
.section{padding:110px 0}
.section.tint{background:var(--cream)}
.section.dark{background:var(--ink);color:#fff}
.sec-head{text-align:center;max-width:760px;margin:0 auto 64px}
.eyebrow{
  display:inline-flex;align-items:center;gap:14px;
  color:var(--gold);font-size:13px;letter-spacing:.42em;text-transform:uppercase;margin-bottom:18px;
}
.eyebrow::before,.eyebrow::after{content:"";width:34px;height:1px;background:var(--gold)}
.sec-head h2{
  font-family:var(--serif);font-size:clamp(30px,4vw,46px);font-weight:700;
  letter-spacing:.1em;line-height:1.4;margin-bottom:18px;
}
.sec-head p{color:#6b6357;font-size:16px;letter-spacing:.06em}
.dark .sec-head p{color:rgba(255,255,255,.68)}
.dark .sec-head h2{color:#fff}

/* ---------- 跑马灯荣誉带 ---------- */
.marquee{
  background:var(--ink);color:#fff;overflow:hidden;padding:20px 0;
  border-top:1px solid var(--line-l);border-bottom:1px solid var(--line-l);
}
.marquee-track{display:flex;gap:0;white-space:nowrap;animation:marquee 30s linear infinite;width:max-content}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:inline-flex;align-items:center;gap:16px;padding:0 36px;font-size:14px;letter-spacing:.3em;color:rgba(255,255,255,.82)}
.marquee-item i{width:6px;height:6px;border-radius:50%;background:var(--gold-2)}
@keyframes marquee{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ---------- 品牌引言 ---------- */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:center}
.intro-media{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);position:relative}
.intro-media .ph{aspect-ratio:4/5}
.intro-copy h2{font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);line-height:1.5;letter-spacing:.08em;margin-bottom:24px}
.intro-copy h2 em{font-style:normal;color:var(--gold)}
.intro-copy p{color:#5c5347;margin-bottom:18px;font-size:16px}
.intro-copy .dropcap::first-letter{
  font-family:var(--serif);font-size:56px;float:left;line-height:1;
  color:var(--gold);padding-right:12px;margin-top:4px;font-weight:700;
}
.intro-link{
  display:inline-flex;align-items:center;gap:10px;margin-top:14px;
  color:var(--ink);font-size:15px;letter-spacing:.18em;font-weight:600;position:relative;
}
.intro-link::after{content:"";position:absolute;left:0;bottom:-4px;width:100%;height:1px;background:var(--gold)}
.intro-link:hover{color:var(--gold-3)}

/* ---------- 数据带 ---------- */
.stats-band{background:linear-gradient(135deg,var(--ink-2),var(--ink))}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center}
.stat-item{position:relative}
.stat-item+.stat-item::before{
  content:"";position:absolute;left:-20px;top:15%;height:70%;width:1px;background:rgba(255,255,255,.12);
}
.stat-num{font-family:var(--serif);font-size:clamp(38px,4.6vw,58px);font-weight:700;color:var(--gold-2);line-height:1.2}
.stat-num small{font-size:.45em;letter-spacing:.1em;color:#fff;font-family:var(--sans)}
.stat-label{margin-top:10px;color:rgba(255,255,255,.72);font-size:14px;letter-spacing:.24em}

/* ---------- 产品卡片 ---------- */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.product-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:transform .45s var(--ease),box-shadow .45s var(--ease);
}
.product-card:hover{transform:translateY(-10px);box-shadow:var(--shadow)}
.product-media .ph{aspect-ratio:1/1}
.product-body{padding:26px 24px 28px}
.product-tag{
  display:inline-block;font-size:11px;letter-spacing:.2em;color:var(--gold-3);
  border:1px solid var(--gold);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.product-body h3{font-family:var(--serif);font-size:21px;letter-spacing:.06em;margin-bottom:10px}
.product-body p{font-size:14px;color:#6b6357;line-height:1.9}
.product-price{margin-top:16px;font-family:var(--serif);color:var(--red);font-size:19px;letter-spacing:.04em}
.product-price small{font-size:12px;color:#8c8273;font-family:var(--sans);letter-spacing:.06em}
.product-more{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;
  color:var(--ink);letter-spacing:.18em;border-bottom:1px solid var(--gold);padding-bottom:3px;transition:.3s;
}
.product-more:hover{color:var(--gold-3)}

/* ---------- 工艺流程 ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:proc}
.process-item{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:38px 28px;transition:.4s var(--ease)}
.process-item:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--gold-2)}
.process-item::before{
  counter-increment:proc;content:counter(proc,decimal-leading-zero);
  font-family:var(--serif);font-size:44px;color:transparent;
  -webkit-text-stroke:1px var(--gold);
  display:block;margin-bottom:18px;line-height:1;
}
.process-item h3{font-family:var(--serif);font-size:19px;letter-spacing:.08em;margin-bottom:12px}
.process-item p{font-size:14px;color:#6b6357;line-height:1.9}

/* ---------- 认证 ---------- */
.cert-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.cert-card{
  border:1px solid var(--line);border-radius:16px;padding:40px 34px;background:#fff;
  display:flex;gap:22px;align-items:flex-start;transition:.4s var(--ease);
}
.cert-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.cert-ico{
  flex:0 0 56px;width:56px;height:56px;border-radius:50%;
  background:var(--cream);border:1px solid var(--gold);
  display:flex;align-items:center;justify-content:center;font-size:24px;color:var(--gold);
}
.cert-card h3{font-family:var(--serif);font-size:18px;letter-spacing:.06em;margin-bottom:8px}
.cert-card p{font-size:14px;color:#6b6357;line-height:1.9}

/* ---------- 引语 / 客户评价 ---------- */
.quote-band{background:var(--ink);position:relative;overflow:hidden}
.quote-band::before{
  content:"“";position:absolute;left:4%;top:-60px;font-family:var(--serif);
  font-size:340px;color:rgba(178,135,58,.12);line-height:1;
}
.talk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative;z-index:1}
.talk-card{background:rgba(255,255,255,.05);border:1px solid var(--line-l);border-radius:16px;padding:38px 32px;backdrop-filter:blur(6px)}
.talk-stars{color:var(--gold-2);letter-spacing:4px;margin-bottom:18px;font-size:15px}
.talk-card p{color:rgba(255,255,255,.86);font-size:15px;line-height:2;letter-spacing:.05em;margin-bottom:24px}
.talk-who{display:flex;align-items:center;gap:14px}
.talk-avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(135deg,var(--gold-2),var(--gold-3));display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;color:#fff}
.talk-who b{color:#fff;font-size:15px;letter-spacing:.1em;display:block}
.talk-who span{font-size:12px;color:rgba(255,255,255,.55);letter-spacing:.14em}

/* ---------- 博客预览 ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.blog-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.45s var(--ease)}
.blog-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.blog-media .ph{aspect-ratio:16/10}
.blog-body{padding:26px 26px 30px}
.blog-meta{font-size:12px;color:#9a8f7e;letter-spacing:.16em;margin-bottom:10px;display:flex;gap:16px}
.blog-body h3{font-family:var(--serif);font-size:19px;line-height:1.6;letter-spacing:.04em;margin-bottom:12px;transition:color .3s}
.blog-card:hover h3{color:var(--gold-3)}
.blog-body p{font-size:14px;color:#6b6357;line-height:1.9}
.blog-more{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;letter-spacing:.18em;color:var(--gold-3)}

/* ---------- 常见问题 ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:26px 6px;text-align:left;font-family:var(--serif);font-size:18px;letter-spacing:.06em;
  color:var(--ink);transition:color .3s;
}
.faq-q:hover{color:var(--gold-3)}
.faq-q .plus{flex:0 0 30px;width:30px;height:30px;border:1px solid var(--gold);border-radius:50%;position:relative;transition:.4s var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--gold);left:50%;top:50%;transform:translate(-50%,-50%)}
.faq-q .plus::before{width:12px;height:1px}
.faq-q .plus::after{width:1px;height:12px}
.faq-item.open .plus{transform:rotate(135deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .45s var(--ease)}
.faq-a p{padding:0 6px 26px;color:#5c5347;font-size:15px;line-height:2}

/* ---------- 行动号召 ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--ink-2),var(--ink))}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(178,135,58,.28),transparent 70%);
}
.cta-inner{position:relative;z-index:1;text-align:center;padding:90px 28px}
.cta-inner h2{font-family:var(--serif);color:#fff;font-size:clamp(28px,3.6vw,44px);letter-spacing:.1em;margin-bottom:20px;line-height:1.5}
.cta-inner p{color:rgba(255,255,255,.7);letter-spacing:.14em;margin-bottom:40px;font-size:15px}

/* ---------- 联系区块 ---------- */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
.contact-info h3{font-family:var(--serif);font-size:24px;letter-spacing:.08em;margin-bottom:28px}
.contact-list{display:grid;gap:22px}
.contact-line{display:flex;gap:16px;align-items:flex-start}
.contact-line i{flex:0 0 40px;width:40px;height:40px;border-radius:50%;background:var(--cream);border:1px solid var(--gold);display:flex;align-items:center;justify-content:center;font-style:normal;color:var(--gold-3);font-size:15px}
.contact-line b{display:block;font-size:14px;letter-spacing:.14em;color:#8c8273;font-weight:500;margin-bottom:4px}
.contact-line a,.contact-line span{font-family:var(--serif);font-size:18px;color:var(--ink);letter-spacing:.04em}
.contact-form{background:#fff;border:1px solid var(--line);border-radius:18px;padding:44px 40px;box-shadow:var(--shadow)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-item{margin-bottom:22px}
.form-item label{display:block;font-size:13px;letter-spacing:.18em;color:#8c8273;margin-bottom:10px}
.form-item input,.form-item select,.form-item textarea{
  width:100%;padding:14px 18px;border:1px solid var(--line);border-radius:10px;
  font-family:var(--sans);font-size:15px;color:var(--ink);background:var(--paper);
  transition:border .3s,box-shadow .3s;outline:none;
}
.form-item input:focus,.form-item select:focus,.form-item textarea:focus{
  border-color:var(--gold);box-shadow:0 0 0 4px rgba(178,135,58,.12);
}
.form-item textarea{resize:vertical;min-height:120px}
.form-item select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b2873a' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 18px center}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.7);padding-top:80px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:46px;padding-bottom:56px;border-bottom:1px solid var(--line-l)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.62);line-height:2;margin-top:20px;max-width:320px}
.footer-col h4{color:#fff;font-family:var(--serif);font-size:17px;letter-spacing:.14em;margin-bottom:24px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:30px;height:1px;background:var(--gold)}
.footer-col ul{display:grid;gap:14px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.62);transition:.3s;letter-spacing:.06em}
.footer-col a:hover{color:var(--gold-2);padding-left:6px}
.footer-seo{
  padding:44px 0;border-bottom:1px solid var(--line-l);font-size:13px;
  color:rgba(255,255,255,.45);line-height:2.1;letter-spacing:.04em;
}
.footer-seo b{color:rgba(255,255,255,.7);font-weight:600}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;padding:26px 0;font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--gold-2)}

/* ---------- 子页 Hero ---------- */
.page-hero{
  position:relative;padding:190px 0 110px;color:#fff;overflow:hidden;background:var(--ink);
}
.page-hero-bg{position:absolute;inset:0}
.page-hero-bg .ph::after{color:rgba(255,255,255,.5)}
.page-hero-veil{position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,19,14,.6),rgba(23,19,14,.86))}
.page-hero-inner{position:relative;z-index:2;text-align:center}
.page-hero h1{font-family:var(--serif);font-size:clamp(34px,5vw,58px);font-weight:700;letter-spacing:.12em;line-height:1.4;margin-bottom:20px}
.breadcrumb{display:flex;justify-content:center;align-items:center;gap:12px;font-size:13px;letter-spacing:.2em;color:rgba(255,255,255,.66)}
.breadcrumb a:hover{color:var(--gold-2)}
.breadcrumb i{font-style:normal;color:var(--gold-2)}

/* ---------- 文章 ---------- */
.article-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:38px 34px;transition:.4s var(--ease)}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.article-card .blog-meta{margin-bottom:14px}
.article-card h3{font-family:var(--serif);font-size:22px;letter-spacing:.06em;margin-bottom:14px;line-height:1.6}
.article-card p{color:#6b6357;font-size:15px;line-height:2}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.article-tags a{font-size:12px;letter-spacing:.12em;border:1px solid var(--gold);color:var(--gold-3);border-radius:999px;padding:4px 14px;transition:.3s}
.article-tags a:hover{background:var(--gold);color:#fff}

/* ---------- 产品详情 ---------- */
.prod-detail{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.prod-detail .ph{aspect-ratio:4/3;border-radius:18px}
.prod-detail h3{font-family:var(--serif);font-size:30px;letter-spacing:.08em;margin-bottom:16px;line-height:1.5}
.prod-detail .price-big{font-family:var(--serif);font-size:34px;color:var(--red);margin-bottom:22px}
.prod-detail .price-big small{font-size:14px;color:#8c8273;font-family:var(--sans)}
.prod-detail ul{display:grid;gap:12px;margin-bottom:26px}
.prod-detail li{display:flex;gap:12px;font-size:15px;color:#5c5347}
.prod-detail li::before{content:"✓";color:var(--gold);font-weight:700}

/* ---------- 对比表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff}
.table-wrap table{width:100%;border-collapse:collapse;min-width:680px}
.table-wrap th,.table-wrap td{padding:18px 22px;text-align:left;font-size:14px;letter-spacing:.04em;border-bottom:1px solid var(--line)}
.table-wrap th{background:var(--ink);color:#fff;font-family:var(--serif);font-size:15px;letter-spacing:.1em}
.table-wrap tr:last-child td{border-bottom:none}
.table-wrap td:first-child{font-weight:600;color:var(--ink)}

/* ---------- 时间线 ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:40px}
.timeline::before{content:"";position:absolute;left:12px;top:0;bottom:0;width:1px;background:var(--gold)}
.timeline-item{position:relative;padding:0 0 52px 34px}
.timeline-item::before{
  content:"";position:absolute;left:-33px;top:6px;width:15px;height:15px;border-radius:50%;
  background:var(--paper);border:3px solid var(--gold);box-shadow:0 0 0 6px var(--cream);
}
.timeline-item:last-child{padding-bottom:0}
.timeline-year{font-family:var(--serif);font-size:22px;color:var(--gold-3);font-weight:700;letter-spacing:.06em;margin-bottom:8px}
.timeline-item h3{font-family:var(--serif);font-size:19px;letter-spacing:.06em;margin-bottom:8px}
.timeline-item p{color:#5c5347;font-size:15px;line-height:2}

/* ---------- 搜索/知识工具条 ---------- */
.know-tools{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:56px}
.know-tools a{
  border:1px solid var(--line);border-radius:999px;padding:10px 24px;font-size:14px;
  letter-spacing:.14em;transition:.3s;color:var(--ink);
}
.know-tools a:hover{border-color:var(--gold);color:var(--gold-3);background:var(--cream)}

/* ---------- 产地区位图 ---------- */
.map-frame{border-radius:18px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.map-frame .ph{aspect-ratio:8/3;background:#f5efe4}
.map-frame .ph::before{display:none}
.map-frame .ph img{object-fit:contain;background:#f5efe4}

/* ---------- 图片占位系统 ---------- */
.ph{position:relative;background:#e9e2d4;overflow:hidden;display:block}
.ph::before{
  content:"";position:absolute;inset:0;
  background:
    repeating-linear-gradient(45deg,rgba(178,135,58,.05) 0 14px,transparent 14px 28px),
    linear-gradient(135deg,#efe9dc,#e2d9c6);
}
.ph::after{
  content:attr(data-ph);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:20px;font-size:13px;letter-spacing:.12em;color:#8c8273;line-height:1.9;
}
.ph img{position:relative;z-index:2;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .8s var(--ease)}
.ph img.loaded{opacity:1}
.ph.dark::after{color:rgba(255,255,255,.75)}

/* ---------- 滚动出现 ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.12s}
.reveal.d2{transition-delay:.24s}
.reveal.d3{transition-delay:.36s}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:30px;z-index:800;width:46px;height:46px;border-radius:50%;
  background:var(--gold);color:#fff;font-size:18px;display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(14px);transition:.4s var(--ease);box-shadow:0 12px 28px rgba(178,135,58,.4);
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--gold-3)}

/* ---------- 404 ---------- */
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--ink);color:#fff;text-align:center;padding:40px 20px}
.error-page .code{font-family:var(--serif);font-size:clamp(90px,18vw,200px);color:var(--gold-2);line-height:1;text-shadow:0 20px 60px rgba(178,135,58,.4)}
.error-page h1{font-family:var(--serif);font-size:clamp(22px,3vw,32px);letter-spacing:.16em;margin:24px 0 16px}
.error-page p{color:rgba(255,255,255,.65);margin-bottom:36px;letter-spacing:.1em}
.error-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- 文章正文 ---------- */
.article-layout{display:grid;grid-template-columns:1fr 320px;gap:56px;align-items:start}
.article-body{background:#fff;border:1px solid var(--line);border-radius:18px;padding:56px 52px;box-shadow:var(--shadow)}
.article-body h1{font-family:var(--serif);font-size:clamp(26px,3vw,36px);letter-spacing:.06em;line-height:1.6;margin-bottom:20px}
.article-body .blog-meta{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:32px}
.article-body h2{font-family:var(--serif);font-size:24px;letter-spacing:.06em;margin:44px 0 18px;padding-left:18px;border-left:4px solid var(--gold)}
.article-body h3{font-family:var(--serif);font-size:19px;letter-spacing:.05em;margin:32px 0 14px}
.article-body p{color:#4d453b;font-size:16px;line-height:2.1;margin-bottom:20px}
.article-body ul,.article-body ol{margin:0 0 24px 24px}
.article-body li{color:#4d453b;font-size:16px;line-height:2.1;margin-bottom:8px}
.article-body li::marker{color:var(--gold)}
.article-body blockquote{
  border-left:4px solid var(--gold);background:var(--cream);padding:26px 30px;
  margin:32px 0;border-radius:0 14px 14px 0;
}
.article-body blockquote p{font-family:var(--serif);font-size:17px;color:var(--ink);margin:0;letter-spacing:.05em}
.article-body table{border-collapse:collapse;width:100%;margin:28px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 16px;font-size:15px;text-align:left}
.article-body th{background:var(--cream);font-family:var(--serif);letter-spacing:.06em}
.article-aside{position:sticky;top:110px;display:grid;gap:28px}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px 26px}
.aside-card h4{font-family:var(--serif);font-size:17px;letter-spacing:.1em;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.aside-card ul{display:grid;gap:14px}
.aside-card li a{font-size:14px;color:#5c5347;line-height:1.7;transition:.3s;display:block}
.aside-card li a:hover{color:var(--gold-3)}
.aside-card .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
.aside-card .tag-cloud a{font-size:12px;border:1px solid var(--line);border-radius:999px;padding:5px 14px;color:#6b6357;letter-spacing:.08em;transition:.3s}
.aside-card .tag-cloud a:hover{border-color:var(--gold);color:var(--gold-3)}

/* ---------- 文章阅读进度 / 目录 ---------- */
.reading-bar{position:fixed;top:0;left:0;height:3px;width:100%;z-index:1100;transform:scaleX(0);transform-origin:0 50%;background:linear-gradient(90deg,var(--gold-3),var(--gold-2));will-change:transform}
.toc-nav{display:grid;gap:2px}
.toc-nav a{
  font-size:14px;line-height:1.6;color:#6b6357;padding:9px 0 9px 16px;
  border-left:2px solid var(--line);transition:.28s var(--ease);
}
.toc-nav a:hover{color:var(--gold-3);border-left-color:var(--gold-2)}
.toc-nav a.active{color:var(--gold-3);border-left-color:var(--gold);font-weight:600;background:linear-gradient(90deg,rgba(178,135,58,.10),transparent)}
.toc-progress-wrap{height:2px;background:var(--line);border-radius:2px;margin-bottom:20px;overflow:hidden}
.toc-progress{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold-3),var(--gold-2));transition:width .2s linear}

/* ---------- 图片灯箱 ---------- */
.lightbox{
  position:fixed;inset:0;z-index:2000;display:flex;align-items:center;justify-content:center;
  background:rgba(12,9,6,.94);padding:40px;
  opacity:0;visibility:hidden;transition:opacity .35s var(--ease);
  cursor:zoom-out;
}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{
  max-width:min(1200px,92vw);max-height:86vh;object-fit:contain;
  border-radius:10px;box-shadow:0 40px 90px rgba(0,0,0,.6);
  transform:scale(.94);transition:transform .35s var(--ease);
}
.lightbox.open img{transform:scale(1)}
.lightbox-cap{
  position:absolute;left:0;right:0;bottom:26px;text-align:center;
  color:rgba(255,255,255,.72);font-size:13px;letter-spacing:.12em;padding:0 24px;
}
.lightbox-close{
  position:absolute;top:22px;right:26px;width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(255,255,255,.3);color:#fff;font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;transition:.3s;
}
.lightbox-close:hover{background:rgba(255,255,255,.14);transform:rotate(90deg)}
.zoomable{cursor:zoom-in}
.zoomable::before{
  content:"⤢";position:absolute;right:14px;top:14px;z-index:3;
  width:34px;height:34px;border-radius:50%;
  background:rgba(23,19,14,.55);backdrop-filter:blur(6px);
  color:#fff;font-size:15px;display:flex;align-items:center;justify-content:center;
  opacity:0;transform:scale(.8);transition:.35s var(--ease);
}
.zoomable:hover::before{opacity:1;transform:scale(1)}
html.lightbox-open,html.lightbox-open body{overflow:hidden}

/* ---------- 表单反馈 ---------- */
.form-toast{
  margin-top:16px;padding:14px 18px;border-radius:12px;font-size:14px;letter-spacing:.06em;
  display:none;align-items:flex-start;gap:10px;line-height:1.8;
}
.form-toast.show{display:flex;animation:toastIn .45s var(--ease)}
.form-toast.ok{background:rgba(178,135,58,.12);border:1px solid var(--gold);color:var(--gold-3)}
.form-toast.err{background:rgba(143,47,36,.08);border:1px solid rgba(143,47,36,.4);color:var(--red)}
.form-toast b{flex:0 0 auto}
@keyframes toastIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.field-error{border-color:var(--red) !important;box-shadow:0 0 0 4px rgba(143,47,36,.10) !important}

/* ---------- 一键复制 ---------- */
.copy-hint{
  margin-left:10px;font-size:11px;letter-spacing:.1em;color:var(--gold-3);
  border:1px solid var(--gold);border-radius:999px;padding:2px 10px;
  opacity:0;transition:.3s;vertical-align:middle;
}
.contact-line a:hover .copy-hint{opacity:1}
.copy-hint.done{background:var(--gold);color:#fff;opacity:1}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .product-grid,.process,.talk-grid,.blog-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3)::before{display:none}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .article-layout{grid-template-columns:1fr}
  .article-aside{position:static}
  .contact-grid,.prod-detail,.intro-grid{grid-template-columns:1fr}
}
@media (max-width:760px){
  .section{padding:80px 0}
  .main-nav{
    position:fixed;inset:0;background:rgba(23,19,14,.98);flex-direction:column;justify-content:center;
    gap:30px;transform:translateY(-102%);transition:transform .45s var(--ease);z-index:950;
  }
  .main-nav.open{transform:none}
  .main-nav a{font-size:20px;letter-spacing:.24em}
  .nav-toggle{display:block}
  .header-cta{display:none}
  .product-grid,.process,.talk-grid,.blog-grid,.cert-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:34px 20px}
  .stat-item::before{display:none}
  .form-row{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .article-body{padding:32px 24px}
  .marquee-item{padding:0 22px}
  .video-toggle{right:18px;bottom:74px;padding:8px 16px;font-size:11px}
  .lightbox{padding:16px}
  .lightbox img{max-height:74vh}
  .lightbox-cap{bottom:14px;font-size:12px}
  .toc-nav a{font-size:13px;padding:8px 0 8px 14px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.01ms !important;animation-iteration-count:1 !important}
}