/* ============================================================
   ANCHORVA 全站共享样式（v3 深海夜航方向）
   规范：ANCHORVA_官网设计规范.md
   页面特有样式写在各页面 <style> 内，禁止在此加入页面私有类
   ============================================================ */

/* ---------- Design Tokens ---------- */
:root{
  --bg:#0A1826;
  --bg-deep:#071220;
  --surface:#102333;
  --surface-2:#152B3E;
  --text:#E9EFF5;
  --text-soft:rgba(233,239,245,.74);
  --text-faint:rgba(233,239,245,.56);
  --accent:#E4572E;
  --accent-soft:#FF9068;
  --line:rgba(255,255,255,.1);
  --line-strong:rgba(255,255,255,.2);
  --r-card:16px;
  --font-sans:'Noto Sans SC',system-ui,-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --font-serif:'Noto Serif SC','Songti SC','SimSun',serif;
  --font-latin:'Archivo','Noto Sans SC',sans-serif;
  --ease:cubic-bezier(.16,1,.3,1);
  --container:1240px;
}

/* ---------- Base ---------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-wrap:pretty;
  overflow-x:hidden;
}
::selection{background:var(--accent);color:#fff}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img{max-width:100%;display:block}
.container{max-width:var(--container);margin:0 auto;padding:0 28px}
.serif{font-family:var(--font-serif)}

/* 胶片颗粒（全站每页） */
body::after{
  content:"";position:fixed;inset:0;z-index:90;pointer-events:none;
  opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity 1s var(--ease),transform 1s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal-d1{transition-delay:.12s}
.reveal-d2{transition-delay:.24s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  border-radius:999px;padding:16px 34px;
  font-size:15px;font-weight:700;letter-spacing:.04em;
  cursor:pointer;border:none;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),background .4s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:scale(.98)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#F0693F;transform:translateY(-2px);box-shadow:0 18px 44px rgba(228,87,46,.34)}
.btn-ghost{background:transparent;color:var(--text);box-shadow:inset 0 0 0 1.5px rgba(255,255,255,.4)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}

/* ---------- 悬浮胶囊导航 ---------- */
.nav{
  position:fixed;top:22px;left:50%;transform:translateX(-50%);
  z-index:100;width:min(1100px,calc(100% - 32px));
  border-radius:999px;
  background:rgba(10,24,38,.55);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  box-shadow:0 12px 44px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.08);
  transition:background .4s var(--ease),box-shadow .4s var(--ease);
}
.nav.scrolled{background:rgba(7,18,32,.82)}
.nav-inner{
  height:62px;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:0 12px 0 26px;
}
.logo{
  font-family:var(--font-latin);font-weight:700;font-size:18px;
  letter-spacing:.08em;color:var(--text);
  display:flex;align-items:center;gap:9px;flex:none;
}
/* 正式 logo 图（白字 + 金色下划线，透明底，专为深色背景设计） */
.logo img{height:24px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:28px;font-size:14px;font-weight:500}
.nav-links a{color:var(--text-soft);transition:color .3s var(--ease)}
.nav-links a:hover{color:var(--text)}
.nav-links a.current{color:var(--accent-soft)}
.nav-cta .btn{padding:10px 24px;font-size:13.5px}
.nav-burger{display:none;background:none;border:none;cursor:pointer;padding:10px;margin-right:6px}
.nav-burger span{display:block;width:22px;height:2px;background:var(--text);margin:5px 0;transition:transform .4s var(--ease),opacity .4s var(--ease)}
.nav-burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger.open span:nth-child(2){opacity:0}
.nav-burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 全屏菜单 */
.menu-overlay{
  position:fixed;inset:0;z-index:99;
  background:rgba(7,18,32,.92);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  display:flex;align-items:center;
  opacity:0;visibility:hidden;
  transition:opacity .5s var(--ease),visibility .5s var(--ease);
}
.menu-overlay.open{opacity:1;visibility:visible}
.menu-list{padding:0 40px;width:100%;max-width:560px;margin:0 auto}
.menu-list a{
  display:block;
  font-family:var(--font-serif);font-weight:900;
  font-size:clamp(28px,6vw,44px);line-height:1.5;
  color:var(--text);
  padding:10px 0;border-bottom:1px solid var(--line);
  opacity:0;transform:translateY(24px);
  transition:opacity .6s var(--ease),transform .6s var(--ease),color .3s var(--ease);
}
.menu-list a:hover{color:var(--accent-soft)}
.menu-overlay.open .menu-list a{opacity:1;transform:none}
.menu-overlay.open .menu-list a:nth-child(1){transition-delay:.08s}
.menu-overlay.open .menu-list a:nth-child(2){transition-delay:.14s}
.menu-overlay.open .menu-list a:nth-child(3){transition-delay:.2s}
.menu-overlay.open .menu-list a:nth-child(4){transition-delay:.26s}
.menu-overlay.open .menu-list a:nth-child(5){transition-delay:.32s}
.menu-overlay.open .menu-list a:nth-child(6){transition-delay:.38s}
.menu-overlay.open .menu-list a:nth-child(7){transition-delay:.44s}
@media(max-width:1020px){
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:block}
}

/* ---------- Section 基础 ---------- */
section{padding:150px 0}
.sec-label{
  display:inline-flex;align-items:center;gap:14px;
  font-size:13px;font-weight:700;letter-spacing:.3em;
  color:var(--accent-soft);margin-bottom:28px;
}
.sec-label::before{content:"";width:36px;height:1px;background:var(--accent)}
.sec-title{
  font-family:var(--font-serif);font-weight:900;
  font-size:clamp(30px,3.8vw,52px);
  line-height:1.42;letter-spacing:.01em;
}
.sec-sub{margin-top:20px;color:var(--text-soft);font-size:16.5px;max-width:42em}
@media(max-width:900px){section{padding:100px 0}}

/* ---------- 内页 Hero（B 模式：纯排印） ---------- */
.page-hero{
  padding:210px 0 110px;
  position:relative;overflow:hidden;
}
.page-hero .sec-title{font-size:clamp(36px,5vw,72px);max-width:16em}
.page-hero .hero-sub{
  margin-top:26px;font-size:17px;line-height:2.05;
  color:var(--text-soft);max-width:36em;
}
.page-hero .hero-ctas{margin-top:44px;display:flex;gap:14px;flex-wrap:wrap}
/* 背景描边装饰字 */
.page-hero .hero-ghost{
  position:absolute;right:-2%;top:120px;z-index:-1;
  font-family:var(--font-latin);font-weight:700;
  font-size:clamp(120px,20vw,300px);line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.06);
  user-select:none;pointer-events:none;white-space:nowrap;
}
@media(max-width:900px){.page-hero{padding:170px 0 80px}}
/* 照片 banner 变体：<section class="page-hero has-media"> + .hero-media img + .hero-scrim */
.page-hero .container{position:relative;z-index:2}
.page-hero.has-media{
  min-height:62vh;
  display:flex;align-items:flex-end;
  padding:210px 0 96px;
}
.page-hero.has-media .hero-ghost{display:none}
.page-hero .hero-media{position:absolute;inset:0;z-index:0}
.page-hero .hero-media img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.85);
}
.page-hero .hero-scrim{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,18,32,.7) 0%,rgba(7,18,32,.42) 45%,var(--bg) 97%);
}
/* 区块照片背景（深色带用）：<section class="photo-band"> */
.photo-band{position:relative;overflow:hidden}
.photo-band>.container{position:relative;z-index:2}
.photo-band .band-media{position:absolute;inset:0;z-index:0}
.photo-band .band-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.photo-band .band-scrim{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,18,32,.94),rgba(7,18,32,.88));
}
/* 通用配图卡 */
.photo-card{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);
  box-shadow:0 34px 80px rgba(0,0,0,.4);
}
.photo-card img{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.85);
  transition:transform 1.2s var(--ease);
}
.photo-card:hover img{transform:scale(1.03)}

/* ---------- 通用组件 ---------- */
/* 细线行清单（橙点） */
.dot-list li{
  display:flex;gap:18px;align-items:baseline;
  padding:18px 0;border-top:1px solid var(--line);
  font-size:16.5px;font-weight:500;
  transition:padding-left .4s var(--ease);
}
.dot-list li:hover{padding-left:10px}
.dot-list li:last-child{border-bottom:1px solid var(--line)}
.dot-list li .dot{
  flex:none;width:8px;height:8px;border-radius:999px;
  background:var(--accent);transform:translateY(-2px);
}

/* 顶线内容块（细线三栏那种） */
.rule-block{border-top:1px solid var(--line-strong);padding-top:28px;transition:border-color .5s var(--ease)}
.rule-block:hover{border-top-color:var(--accent)}
.rule-block .en{
  font-family:var(--font-latin);font-weight:600;font-size:12.5px;
  letter-spacing:.22em;color:var(--accent-soft);text-transform:uppercase;
}
.rule-block h3{
  font-family:var(--font-serif);font-weight:900;font-size:23px;
  margin-top:10px;
}
.rule-block p{margin-top:12px;font-size:14.5px;color:var(--text-soft);line-height:2}

/* 描边大字工具类 */
.stroke-text{
  color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.42);
  font-family:var(--font-serif);font-weight:900;
}

/* 宋体引言 */
.quote{
  border-left:2px solid var(--accent);
  padding:6px 0 6px 26px;
  font-family:var(--font-serif);font-weight:700;
  font-size:19px;line-height:2;color:var(--text);
}

/* 标签词行（用 ｜ 分隔的动作/标签） */
.tag-row{font-size:14px;color:var(--text-soft);line-height:2.2}
.tag-row strong{color:var(--accent-soft);font-weight:700;margin-right:12px}

/* 深色卡片 */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:34px 32px;
  transition:transform .5s var(--ease),border-color .5s var(--ease),background .5s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);background:var(--surface-2)}

/* ---------- CTA 照片收束带 ---------- */
.cta{
  position:relative;overflow:hidden;
  padding:190px 0;text-align:center;
}
.cta-media{position:absolute;inset:0;z-index:0}
.cta-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.85)}
.cta-scrim{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,var(--bg) 0%,rgba(7,18,32,.72) 22%,rgba(7,18,32,.72) 78%,var(--bg-deep) 100%);
}
.cta-inner{position:relative;z-index:2;max-width:860px;margin:0 auto;padding:0 28px}
.cta h2{
  font-family:var(--font-serif);font-weight:900;
  font-size:clamp(32px,4.6vw,62px);line-height:1.45;
}
.cta h2 em{font-style:normal;color:var(--accent-soft)}
.cta p{margin-top:26px;color:var(--text-soft);font-size:17px;max-width:31em;margin-left:auto;margin-right:auto}
.cta-btns{margin-top:54px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:26px;font-size:13px;color:var(--text-faint)}

/* ---------- Footer ---------- */
footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:84px 0 46px;color:var(--text-soft)}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:44px;
  padding-bottom:58px;border-bottom:1px solid var(--line);
}
.foot-brand .logo{margin-bottom:18px;font-size:19px}
.foot-brand .logo img{height:28px}
.foot-brand p{font-size:14px;line-height:2;max-width:24em;color:var(--text-faint)}
footer h4{color:var(--text);font-size:14px;font-weight:700;margin-bottom:18px;letter-spacing:.06em}
footer li{margin-bottom:11px}
footer li a{font-size:13.5px;color:var(--text-faint);transition:color .3s var(--ease)}
footer li a:hover{color:var(--text)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  padding-top:30px;font-size:13px;color:var(--text-faint);
}
@media(max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.foot-grid{grid-template-columns:1fr}}