:root{
  --ink:#211c18;
  --ink-soft:#4a4139;
  --ink-faint:#8a7f72;
  --paper:#f4eee2;
  --paper-2:#ece2d1;
  --paper-3:#e2d7c2;
  /* 五行喜用神：水（墨蓝）+ 金（暗金）为主调 */
  --water:#16263a;
  --water-2:#0f1c2e;
  --water-light:#2b4866;
  --cinnabar:#b23a2e;
  --cinnabar-deep:#8f2c22;
  --gold:#b08d57;
  --gold-light:#cdab6f;
  --jade:#5a6b5d;
  --line:rgba(31,28,24,.14);
  --serif:'Noto Serif SC',serif;
  --sans:'Noto Sans SC',system-ui,sans-serif;
  --brush:'Ma Shan Zheng',cursive;
  /* 印章楷体：端正楷书带笔锋，跟朱砂印章同调（霞鹜文楷=开源可商用，零版权风险） */
  --kai:'LXGW WenKai','Kaiti SC','STKaiti','KaiTi','楷体',serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--sans);color:var(--ink);
  background-color:var(--paper);
  /* 极淡墨晕散点：呼应横幅视频雾漂，把动态水墨化进静态宣纸（透明度<0.04，仅背景层，文字零受扰） */
  background-image:
    radial-gradient(circle at 16% 20%, rgba(33,28,24,.03) 0, transparent 36%),
    radial-gradient(circle at 84% 14%, rgba(22,38,58,.027) 0, transparent 32%),
    radial-gradient(circle at 70% 76%, rgba(33,28,24,.026) 0, transparent 40%),
    radial-gradient(circle at 28% 90%, rgba(22,38,58,.022) 0, transparent 36%),
    radial-gradient(circle at 50% 52%, rgba(176,141,87,.016) 0, transparent 60%);
  line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--cinnabar);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ===== NAV ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:18px 6vw;transition:all .5s ease;background:transparent}
.nav.scrolled{background:rgba(244,238,226,.94);backdrop-filter:blur(12px);box-shadow:0 1px 0 var(--line);padding:12px 6vw}
/* 默认导航适合深色背景（子页） */
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-weight:700;font-size:20px;color:#fff;transition:color .5s}
.nav.scrolled .brand{color:var(--ink)}
.brand .logo-mark{height:58px;width:auto;flex:0 0 auto;display:block;border-radius:0;object-fit:contain;background:transparent;filter:drop-shadow(0 0 6px rgba(255,246,225,.55)) drop-shadow(0 0 2px rgba(178,58,46,.25));transition:transform .35s ease,filter .35s ease}
.brand:hover .logo-mark{transform:translateY(-1px);filter:drop-shadow(0 0 10px rgba(255,246,225,.8)) drop-shadow(0 0 3px rgba(178,58,46,.35))}
.brand-name{display:flex;flex-direction:column;line-height:1.05;width:fit-content;align-items:center;text-align:center}
.brand-name b{font-size:17px;font-weight:700;letter-spacing:6px;padding-left:6px}
/* 横杠改为跟英文整行同宽、居中压在英文正中上方：中间实、两端羽化淡出 */
.brand-name i::before{content:'';display:block;width:100%;height:1px;margin:0 auto 4px;background:linear-gradient(90deg,transparent,currentColor 32%,currentColor 68%,transparent);opacity:.5}
/* 英文：绝对不折行 + 字号加大保证看得清；与中文居中对称 */
.brand-name i{display:block;font-style:normal;font-weight:400;font-size:9.5px;letter-spacing:1.8px;white-space:nowrap;margin-top:4px;opacity:.78}
.brand .logo-mark{transition:transform .35s ease}
.brand:hover .logo-mark{transform:translateY(-1px)}
.menu{display:flex;gap:32px;font-size:15px}
.menu a{color:rgba(255,255,255,.85);transition:color .3s;position:relative;padding:4px 0}
.nav.scrolled .menu a{color:var(--ink-soft)}
.menu a::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--gold);transition:width .3s}
.menu a:hover::after,.menu a.active::after{width:100%}
.menu a:hover,.menu a.active{color:var(--cinnabar)}
.nav-toggle{display:none;color:#fff;font-size:24px;cursor:pointer}
.nav.scrolled .nav-toggle{color:var(--ink)}
/* 首页浅色水墨背景用深色导航 */
.home .brand,.home .nav-toggle{color:var(--ink)}
.home .menu a{color:var(--ink-soft)}
.home .menu a:hover,.home .menu a.active{color:var(--cinnabar)}

/* ===== HERO (home) - 水墨视频背景（传洲原图本地渲染，零版权风险） ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden}
/* 动态水墨视频背景（清淡留白版） */
.hero-video{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.2s ease}
.hero--video .hero-video{opacity:1}
/* ===== 高清原图 + CSS 确定性动效（替代自动生成的视频：清晰度=原图） ===== */
.hero-art{position:absolute;inset:0;z-index:0;overflow:hidden}
.hero-art-zoom{position:absolute;inset:0;animation:heroZoom 46s ease-in-out infinite alternate;will-change:transform}
.hero-art-base{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
@keyframes heroZoom{
  0%{transform:scale(1)}
  100%{transform:scale(1.05) translate(-0.5%,-0.4%)}
}
.hero-art-boat{position:absolute;left:49.5%;top:55%;width:2.7%;
  transform:translate(-50%,-50%);animation:boatBob 7s ease-in-out infinite alternate;will-change:transform}
@keyframes boatBob{
  0%{transform:translate(-50%,-50%) rotate(-.5deg)}
  100%{transform:translate(-50%,-52%) rotate(.5deg)}
}
.hero-art-geese{position:absolute;left:0;top:9%;width:11%;opacity:.9;
  transform:translateX(18vw);animation:geeseFly 85s linear infinite;animation-delay:-32s;will-change:transform}
@keyframes geeseFly{
  0%{transform:translateX(108vw)}
  100%{transform:translateX(-16vw)}
}
.hero-art-fog{position:absolute;left:-8%;width:116%;pointer-events:none;
  background-repeat:no-repeat;background-size:100% 100%}
.hero-art-fog.f1{top:50%;height:11%;background-image:url('images/_ai_gen/hero_fog1.png');
  opacity:.8;animation:fogDrift1 38s ease-in-out infinite alternate}
.hero-art-fog.f2{top:56%;height:14%;background-image:url('images/_ai_gen/hero_fog2.png');
  opacity:.55;animation:fogDrift2 55s ease-in-out infinite alternate}
@keyframes fogDrift1{0%{transform:translateX(-2.2%)}100%{transform:translateX(2.2%)}}
@keyframes fogDrift2{0%{transform:translateX(1.8%)}100%{transform:translateX(-1.8%)}}
/* 视频上叠极淡宣纸蒙版：左+下压清，保证深墨文字始终可读、画面不刺眼 */
.hero--video::before{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(90deg,rgba(244,238,226,.40) 0%,rgba(244,238,226,.14) 50%,rgba(244,238,226,0) 72%),
             linear-gradient(180deg,rgba(244,238,226,.08) 0%,rgba(244,238,226,.26) 80%,rgba(244,238,226,.52) 100%)}
/* 晕动症/关闭动效用户：动态特效停掉，但保留高清静态画面（视频定格首帧，不整块藏掉） */
@media (prefers-reduced-motion: reduce){
  .hero-art-zoom,.hero-art-boat,.hero-art-geese,.hero-art-fog{animation:none}
  .hero-art-fog{opacity:.4}
}
/* 背景动画播放/暂停开关：右下角低调小按钮 */
.hero-video-toggle{position:absolute;right:18px;bottom:18px;z-index:5;width:34px;height:34px;
  border:1px solid rgba(43,36,30,.28);border-radius:50%;background:rgba(244,238,226,.66);
  color:#2b241e;font-size:11px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(2px);transition:background .3s ease,transform .3s ease}
.hero-video-toggle:hover{background:rgba(244,238,226,.92);transform:scale(1.08)}
.hero-video-toggle.is-paused{color:#8a2a1e}
/* 中央播放提示：视频被拦自动播时显式提示用户点击（不挡画面，半透明圆钮） */
.hero-play{position:absolute;left:50%;top:54%;transform:translate(-50%,-50%);z-index:4;
  width:76px;height:76px;border-radius:50%;border:1px solid rgba(244,238,226,.85);
  background:rgba(22,38,58,.42);color:#f4eee2;font-size:26px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;padding-left:6px;
  -webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);
  box-shadow:0 6px 22px rgba(0,0,0,.28);transition:opacity .4s ease,transform .3s ease,background .3s ease}
.hero-play:hover{background:rgba(22,38,58,.62);transform:translate(-50%,-50%) scale(1.06)}
.hero-play.hidden{opacity:0;pointer-events:none}
/* 背景乐开关：放在播放键左侧，同款低调样式 */
.hero-sound-toggle{position:absolute;right:60px;bottom:18px;z-index:5;width:34px;height:34px;
  border:1px solid rgba(43,36,30,.28);border-radius:50%;background:rgba(244,238,226,.66);
  color:#2b241e;font-size:13px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;
  backdrop-filter:blur(2px);transition:background .3s ease,transform .3s ease}
.hero-sound-toggle:hover{background:rgba(244,238,226,.92);transform:scale(1.08)}
.hero-sound-toggle.is-on{color:#b23a2e;border-color:rgba(178,58,46,.5);background:rgba(244,238,226,.9)}
/* 右下角淡红"傳洲文化"竖排水印已删（传洲 2026-10-05 定：去掉更清爽） */
/* 底部暗角蒙版：让底部文字在山水亮部也能读 */
.hero::before{content:'';position:absolute;inset:0;pointer-events:none;z-index:1;
  background:linear-gradient(180deg,rgba(244,238,226,0) 0%,rgba(244,238,226,.25) 70%,rgba(244,238,226,.55) 100%)}
/* 左侧轻蒙版：标题放在画面较空处，微微压暗增加可读性 */
.hero::after{content:'';position:absolute;inset:0;pointer-events:none;z-index:1;
  background:linear-gradient(90deg,rgba(244,238,226,.38) 0%,rgba(244,238,226,.12) 45%,transparent 65%)}
.hero-texture{position:absolute;inset:0;opacity:.22;mix-blend-mode:multiply;pointer-events:none;z-index:2}
.hero-inner{position:relative;z-index:3;padding:0 6vw;max-width:1000px;
  /* 整块标题位置：红"根"字中心对准古树树根（传洲红圈指定，2026-10-05 二轮校正） */
  transform:translate(9.4vw,12vh)}
.hero-tag{display:inline-flex;align-items:center;gap:10px;color:var(--cinnabar);font-family:var(--serif);
  font-size:22px;font-weight:600;letter-spacing:.3em;margin-bottom:28px;opacity:0;animation:rise 1s .2s forwards;
  position:relative;left:-52px; /* 传洲 10-05：整行左移约两个字 */
  text-shadow:0 1px 3px rgba(244,238,226,.95),0 0 12px rgba(244,238,226,.8)}
.hero-tag::before{content:'';width:46px;height:1px;background:var(--cinnabar)}
.hero h1{font-family:var(--serif);font-weight:900;color:var(--ink);font-size:clamp(32px,4.2vw,56px);line-height:1.18;
  letter-spacing:.02em;opacity:0;animation:rise 1s .4s forwards;
  text-shadow:0 2px 18px rgba(244,238,226,.55),0 1px 4px rgba(244,238,226,.75)}
/* "根"字保持原大原色（传洲 2026-10-05 定：其余字缩小，唯根不变） */
.hero h1 .accent{color:var(--cinnabar);position:relative;font-size:1.4em}
.hero h1 .accent::after{content:'';position:absolute;left:0;right:0;bottom:.08em;height:.12em;background:var(--cinnabar);opacity:.25;border-radius:2px}
.hero-sub{margin-top:46px;color:var(--ink);font-size:clamp(15px,1.8vw,19px);font-weight:500;
  max-width:620px;text-indent:2em;opacity:0;animation:rise 1s .7s forwards;
  text-shadow:0 1px 2px rgba(244,238,226,.9),0 0 14px rgba(244,238,226,.45)}
/* 按钮块：移到画面右侧（传洲 2026-10-05 定），脱离标题流、绝对定位于 hero */
.hero-cta{position:absolute;right:7vw;bottom:30vh;z-index:3;display:flex;gap:18px;flex-wrap:wrap;
  justify-content:flex-end;opacity:0;animation:rise 1s .95s forwards}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:2px;font-size:15px;font-weight:500;transition:all .3s;cursor:pointer}
.btn-primary{background:var(--cinnabar);color:#fff}
.btn-primary:hover{background:var(--cinnabar-deep);transform:translateY(-2px)}
.btn-ghost{border:1px solid rgba(33,28,24,.35);color:var(--ink)}
.btn-ghost:hover{border-color:var(--cinnabar);color:var(--cinnabar)}
.btn-ink{background:var(--water);color:var(--paper)}
.btn-ink:hover{background:var(--water-2);transform:translateY(-2px)}
.hero-seal{position:absolute;top:14vh;right:7vw;z-index:3;writing-mode:vertical-rl;font-family:var(--brush);font-weight:700;
  color:var(--cinnabar);font-size:34px;letter-spacing:.15em;border:2px solid var(--cinnabar);padding:18px 10px;border-radius:8px;
  background:rgba(244,238,226,.18);opacity:0;animation:fade 1.4s 1.2s forwards}
/* scroll-hint 恢复：随按钮块一起放右侧、位于按钮正下方（传洲 2026-10-05 定） */
.scroll-hint{position:absolute;right:7vw;bottom:15vh;z-index:3;color:var(--ink-faint);font-size:13px;letter-spacing:.3em;
  display:flex;flex-direction:column-reverse;align-items:center;gap:10px;opacity:0;animation:fade 1s 1.5s forwards}
.scroll-hint .line{width:2px;height:34px;background:var(--cinnabar);position:relative;animation:dropArrow 1.6s infinite}
.scroll-hint .line::after{content:"";position:absolute;left:50%;bottom:-8px;transform:translateX(-50%);border:7px solid transparent;border-top:9px solid var(--cinnabar);border-bottom:0}
@keyframes rise{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes dropArrow{0%{transform:translateY(-9px);opacity:.15}55%{opacity:1}100%{transform:translateY(9px);opacity:.15}}

/* ===== PAGE HERO (sub pages) ===== */
/* 内页横幅：纯墨蓝单色调底板（无图，单一色系柔和过渡） */
.page-hero{position:relative;padding:160px 6vw 80px;color:var(--paper);overflow:hidden;
  background:linear-gradient(165deg,#16293f 0%,#1d3b59 52%,#234a6e 100%)}
.ph-photo{display:none}
/* 内页横幅视频背景（1920×760 水墨短视频，静音循环；墨蓝蒙版压深保文字可读） */
.ph-video{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;
  filter:brightness(.88) saturate(.92)}
.page-hero--video{background:#16293f;
  /* 39.6vw = 760/1920：横幅最小高度随屏宽等比走，保证视频画面完整显示不裁切（松树不被拦腰截断） */
  min-height:39.6vw;display:flex;align-items:center}
.page-hero--video::before{background:linear-gradient(180deg,rgba(8,18,30,.58) 0%,rgba(10,24,40,.36) 48%,rgba(8,18,30,.62) 100%)}
/* ① 横幅→内容区渐变过渡带：墨蓝从视频底自然"化"成宣纸，消掉动态与静态的硬接缝 */
.page-hero--video::after{content:'';position:absolute;left:0;right:0;bottom:0;height:130px;z-index:1;pointer-events:none;
  background:linear-gradient(to bottom, rgba(22,41,63,0) 0%, rgba(22,41,63,.38) 34%, rgba(244,238,226,.97) 100%)}
/* 移动端降级：不播视频，回退墨蓝纯色底板（省流量省电）；纹理关、过渡带收窄、小引收口 */
@media (max-width:768px){
  .ph-video{display:none}
  body{background-image:none}
  .page-hero--video::after{height:88px;background:linear-gradient(to bottom, rgba(22,41,63,0) 0%, rgba(22,41,63,.42) 40%, rgba(244,238,226,.98) 100%)}
  .ink-trace{padding:22px 6vw 0;font-size:15px;letter-spacing:.1em}
  .ink-trace .ln{width:28px}
}
.page-hero::before{content:'';position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,18,30,.28) 0%,transparent 46%,rgba(8,18,30,.42) 100%)}
.page-hero::after{content:none}
.page-hero-inner{position:relative;z-index:2;max-width:1100px}
.page-hero .kicker{color:var(--gold-light);font-family:var(--serif);font-size:14px;letter-spacing:.35em;display:flex;align-items:center;gap:14px;margin-bottom:20px}
.page-hero .kicker::before{content:'';width:34px;height:2px;background:var(--gold)}
.page-hero h1{font-family:var(--serif);font-weight:900;font-size:clamp(32px,5vw,60px);line-height:1.2;color:var(--paper)}
.page-hero p{margin-top:22px;color:rgba(244,238,226,.7);font-weight:300;font-size:clamp(18px,2vw,21px);max-width:680px}

/* ④ 落墨余韵：紧贴横幅下的一句呼吸引子（暗金楷体+渐隐墨线），柔接动态视频与静态内容 */
.ink-trace{display:flex;align-items:center;justify-content:center;gap:16px;
  max-width:1200px;margin:0 auto;padding:30px 6vw 2px;
  font-family:var(--kai);font-weight:400;font-size:clamp(16px,2vw,21px);
  color:var(--gold);letter-spacing:.16em;opacity:.92}
.ink-trace .ln{width:52px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.ink-trace .ln.r{background:linear-gradient(90deg,var(--gold),transparent)}
.ink-trace .txt{padding:0 2px}

/* ===== BREADCRUMB ===== */
.crumb{max-width:1200px;margin:0 auto;padding:28px 6vw 0;font-size:13.5px;color:var(--ink-faint);letter-spacing:.05em}
.crumb a:hover{color:var(--cinnabar)}

/* ===== SECTION COMMON ===== */
section{position:relative;padding:110px 6vw}
.sec-head{max-width:1200px;margin:0 auto 60px}
.sec-kicker{color:var(--cinnabar);font-family:var(--serif);font-size:14px;letter-spacing:.35em;display:flex;align-items:center;gap:14px;margin-bottom:18px}
.sec-kicker::before{content:'';width:34px;height:2px;background:var(--gold)}
.sec-title{font-family:var(--serif);font-weight:700;font-size:clamp(28px,3.6vw,44px);line-height:1.3;color:var(--ink)}
.sec-desc{margin-top:18px;color:var(--ink-soft);max-width:720px;font-weight:300;font-size:16px}
.reveal{opacity:0;transform:translateY(40px);transition:all .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== HOME OVERVIEW CARDS ===== */
.overview{background:var(--paper)}
.ov-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;max-width:1200px;margin:0 auto}
.ov-card{background:var(--paper-2);border:1px solid var(--line);padding:38px 32px;transition:all .4s;position:relative;overflow:hidden}
.ov-card::before{content:'';position:absolute;left:0;top:0;width:4px;height:0;background:var(--gold);transition:height .4s}
.ov-card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(31,28,24,.1)}
.ov-card:hover::before{height:100%}
.ov-card .ov-icon{font-family:var(--brush);font-size:40px;color:var(--cinnabar);line-height:1;margin-bottom:18px}
.ov-card h3{font-family:var(--serif);font-size:24px;margin-bottom:12px;color:var(--ink)}
.ov-card p{color:var(--ink-soft);font-weight:300;font-size:15.5px;margin-bottom:18px}
.ov-card .ov-link{font-size:14px;color:var(--cinnabar);font-weight:500}
.ov-card .ov-link:hover{text-decoration:underline}

/* ===== ABOUT / TIMELINE ===== */
.about{background:var(--paper)}
.timeline{position:relative;max-width:1000px;margin:0 auto;padding-left:28px}
.timeline::before{content:'';position:absolute;left:6px;top:8px;bottom:8px;width:2px;background:linear-gradient(var(--gold),var(--cinnabar),transparent)}
.tl-item{position:relative;padding:0 0 50px 36px}
.tl-item::before{content:'';position:absolute;left:-26px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--paper);border:3px solid var(--gold)}
.tl-year{font-family:var(--serif);font-weight:700;color:var(--cinnabar);font-size:24px;margin-bottom:6px}
.tl-item h3{font-family:var(--serif);font-size:21px;margin-bottom:8px;color:var(--ink)}
.tl-item p{color:var(--ink-soft);font-weight:300;font-size:15.5px;max-width:660px}
.todo{display:inline-block;margin-top:8px;font-size:13px;color:var(--gold);border:1px dashed var(--gold);padding:2px 10px;border-radius:3px}
/* ===== 开篇块（about 页起势排版：大标题压阵＋朱砂点睛＋巨字水印） ===== */
.lead-block{position:relative;max-width:900px;margin:0 auto;padding:16px 0 8px;text-align:left}
.lead-mark{position:absolute;top:-58px;right:-30px;z-index:0;font-family:var(--brush);
  font-size:clamp(150px,22vw,260px);line-height:1;color:rgba(22,38,58,.055);
  transform:rotate(4deg);user-select:none;pointer-events:none}
.lead-kicker{position:relative;z-index:1;color:var(--gold);font-family:var(--serif);
  font-size:14px;letter-spacing:.42em;display:flex;align-items:center;gap:16px;margin-bottom:26px}
.lead-kicker::after{content:'';flex:0 0 56px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}
.lead-title{position:relative;z-index:1;font-family:var(--serif);font-weight:900;
  font-size:clamp(30px,4.6vw,52px);line-height:1.42;color:var(--water);letter-spacing:.02em}
.lead-title em{font-style:normal;color:var(--cinnabar);position:relative;white-space:nowrap}
.lead-title em::after{content:'';position:absolute;left:0;right:0;bottom:.06em;height:.12em;
  background:rgba(176,141,87,.35);z-index:-1}
/* 第二行：毛笔书法体放大、向右错落"敲开一点"，落墨收势、有文化底蕴 */
.lead-l2{display:block;font-family:var(--brush);font-weight:400;
  font-size:clamp(42px,7vw,80px);line-height:1.06;color:var(--water);
  margin-top:10px;margin-left:1.5em;letter-spacing:.04em}
/* 「传洲」二字：印章楷体（同朱砂印章一脉，端正气派），其余字保持原字体 */
.lead-name{font-family:var(--kai);font-weight:700;letter-spacing:.02em}
/* 「传洲」二字取自本人真印章字样（不含全名），嵌入标题随字号缩放 */
/* 「传洲」印章字样：放大成竖章立在「把」前头（传洲红框定位），端正不歪 */
.lead-seal{height:1.62em;width:auto;vertical-align:-.4em;margin-right:.14em;opacity:1;
  filter:none;transition:transform .3s}
.lead-seal:hover{transform:scale(1.03)}
/* 「根」单独拎出放大＋朱砂圆圈圈住——根才是最重要的 */
.root-circle{display:inline-block;position:relative;color:var(--cinnabar);
  font-size:1.42em;line-height:1;padding:.08em .04em .14em;margin:0 .03em;
  vertical-align:-.14em}
.root-circle::before{content:'';position:absolute;inset:.02em -.03em -.03em;
  border:.042em solid var(--cinnabar);border-radius:50%;
  transform:rotate(-5deg);opacity:.9}
.root-circle::after{content:'';position:absolute;inset:.1em .04em .02em .04em;
  border:.018em solid var(--cinnabar);border-radius:50%;
  transform:rotate(3deg);opacity:.55}
.lead-rule{width:72px;height:3px;margin:30px 0 24px;background:linear-gradient(90deg,var(--gold) 0%,var(--gold-light) 60%,transparent 100%)}
.lead-sub{position:relative;z-index:1;font-size:clamp(16px,1.9vw,20px);line-height:2.15;
  color:var(--ink-soft);font-weight:300}
.lead-sub em{font-style:normal;font-weight:700;color:var(--cinnabar)}
@media (max-width:640px){
  .lead-mark{top:-38px;right:-14px;opacity:.8}
  .lead-block{padding-top:8px}
  .lead-l2{margin-left:.4em;font-size:clamp(34px,9vw,52px)}
}

/* ===== BUSINESS ===== */
.biz{background:var(--paper-2)}
.biz-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;max-width:1200px;margin:0 auto}
.biz-card{background:var(--paper);border:1px solid var(--line);padding:42px 34px;position:relative;transition:all .4s;overflow:hidden}
.biz-card::before{content:'';position:absolute;left:0;top:0;width:4px;height:0;background:var(--gold);transition:height .4s}
.biz-card:hover{transform:translateY(-8px);box-shadow:0 18px 40px rgba(31,28,24,.1)}
.biz-card:hover::before{height:100%}
.biz-num{font-family:var(--serif);font-size:15px;color:var(--gold);letter-spacing:.2em}
.biz-card h3{font-family:var(--serif);font-size:26px;margin:14px 0 16px;color:var(--ink)}
.biz-card p{color:var(--ink-soft);font-weight:300;font-size:15.5px}
.biz-card .note{margin-top:16px;font-size:13.5px;color:var(--cinnabar);font-weight:400}
.service-list{max-width:1000px;margin:60px auto 0;display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.svc{background:var(--paper);border:1px solid var(--line);padding:28px 30px;display:flex;gap:18px;align-items:flex-start}
.svc .n{font-family:var(--serif);font-size:18px;color:var(--gold);min-width:34px}
.svc h4{font-family:var(--serif);font-size:18px;color:var(--ink);margin-bottom:6px}
.svc p{color:var(--ink-soft);font-weight:300;font-size:14.5px}

/* ===== WINDOWS (editorial) ===== */
.windows{background:var(--water);color:var(--paper)}
.windows .sec-kicker{color:var(--gold-light)}
.windows .sec-title{color:var(--paper)}
.windows .sec-desc{color:rgba(244,238,226,.6)}
.win-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px;max-width:1200px;margin:0 auto}
.win{position:relative;border:1px solid rgba(244,238,226,.18);padding:34px 30px;min-height:220px;display:flex;flex-direction:column;justify-content:space-between;transition:all .4s;overflow:hidden}
.win::after{content:'';position:absolute;inset:0;opacity:0;transition:opacity .4s;
  background:radial-gradient(60% 60% at 80% 15%,rgba(176,141,87,.18),transparent 60%)}
.win:hover{border-color:var(--gold);background:rgba(176,141,87,.04)}
.win:hover::after{opacity:1}
.win .w-tag{font-family:var(--brush);font-size:30px;color:var(--cinnabar);line-height:1}
.win h3{font-family:var(--serif);font-size:24px;color:var(--paper);margin:14px 0 8px}
/* 标题内细分隔竖线（替代逗号）：细线、留空隙、略降对齐 */
.vd{display:inline-block;width:1px;height:.92em;background:currentColor;opacity:.5;vertical-align:-.08em;margin:0 20px}
.win p{color:rgba(244,238,226,.64);font-weight:300;font-size:14.5px}
.win .w-link{margin-top:18px;font-size:13px;color:var(--gold-light);letter-spacing:.1em}
.win-1{grid-column:span 7}
.win-2{grid-column:span 5}
.win-3{grid-column:span 3}
.win-4{grid-column:span 3}
.win-5{grid-column:span 3}
.win-6{grid-column:span 3}
.win-love{grid-column:span 5}
.win-feature{grid-column:span 7;min-height:160px;flex-direction:row;align-items:center;gap:30px}
.win-feature .w-tag{font-size:54px}

/* ===== ARCHIVE ===== */
.archive{background:var(--paper)}
.arch-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1200px;margin:0 auto}
.arch-card{background:var(--paper-2);border:1px solid var(--line);aspect-ratio:16/10;position:relative;overflow:hidden;display:flex;align-items:flex-end;cursor:pointer;transition:transform .4s}
.arch-card:hover{transform:translateY(-6px)}
.arch-card .ph{position:absolute;inset:0;background:linear-gradient(135deg,#16263a,#2b4866);opacity:.92;transition:transform .6s}
.arch-card:hover .ph{transform:scale(1.06)}
.arch-card .ph::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(176,141,87,.4),transparent 60%)}
.arch-card .meta{position:relative;z-index:2;padding:22px;color:var(--paper)}
.arch-card .yr{font-family:var(--serif);color:var(--gold-light);font-size:14px;letter-spacing:.2em}
.arch-card .tt{font-family:var(--serif);font-size:19px;margin-top:6px}
.arch-card .st{position:absolute;top:18px;right:18px;z-index:2;font-size:12px;color:rgba(244,238,226,.75);border:1px solid rgba(244,238,226,.3);padding:2px 9px;border-radius:3px}

/* ===== MATRIX ===== */
.matrix{background:var(--paper-2)}
.mx-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1200px;margin:0 auto}
.mx{background:var(--paper);border:1px solid var(--line);padding:30px 26px;transition:all .4s}
.mx:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(31,28,24,.09)}
.mx .dot{width:12px;height:12px;border-radius:50%;background:var(--gold);margin-bottom:16px}
.mx h3{font-family:var(--serif);font-size:21px;margin-bottom:6px}
.mx .role{color:var(--cinnabar);font-size:13px;font-weight:500;margin-bottom:10px}
.mx p{color:var(--ink-soft);font-weight:300;font-size:14.5px}

/* ===== ARTICLE / DETAIL ===== */
.article{max-width:820px;margin:0 auto;padding:0 6vw}
.article p{color:var(--ink-soft);font-weight:300;font-size:16.5px;margin-bottom:22px}
.article h3{font-family:var(--serif);font-size:24px;color:var(--ink);margin:38px 0 16px}
.article .pull{font-family:var(--serif);font-size:clamp(20px,2.6vw,28px);line-height:1.7;color:var(--cinnabar);border-left:4px solid var(--gold);padding-left:22px;margin:34px 0}

/* ===== CONTACT ===== */
.contact{background:var(--water);color:var(--paper)}
.contact .sec-kicker{color:var(--gold-light)}
.contact .sec-title{color:var(--paper)}
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;max-width:1100px;margin:0 auto;align-items:start}
.ct-info p{color:rgba(244,238,226,.66);font-weight:300;margin-bottom:14px;font-size:15.5px}
.ct-info .big{font-family:var(--serif);font-size:22px;color:var(--paper);margin-bottom:24px;font-weight:400}
.ct-item{display:flex;gap:14px;margin-bottom:18px;align-items:flex-start}
.ct-item .ic{color:var(--gold-light);font-family:var(--serif);font-size:15px;min-width:60px;letter-spacing:.1em}
.ct-item .tx{color:rgba(244,238,226,.78);font-weight:300;font-size:15px}
.form{display:flex;flex-direction:column;gap:16px}
.form input,.form textarea{background:rgba(244,238,226,.06);border:1px solid rgba(244,238,226,.18);color:var(--paper);
  padding:14px 16px;font-family:var(--sans);font-size:15px;border-radius:2px;outline:none;transition:border .3s}
.form input:focus,.form textarea:focus{border-color:var(--gold)}
.form textarea{resize:vertical;min-height:120px}
.form input::placeholder,.form textarea::placeholder{color:rgba(244,238,226,.4)}
.form .btn-primary{align-self:flex-start;border:none;cursor:pointer}
.form .hint{font-size:12.5px;color:rgba(244,238,226,.45)}

/* ===== FOOTER ===== */
footer{background:var(--water-2);color:rgba(244,238,226,.55);padding:50px 6vw 40px;font-size:13.5px}
.ft-inner{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px}
.ft-brand{font-family:var(--serif);font-size:18px;color:var(--paper);margin-bottom:10px;display:flex;align-items:center;gap:10px}
.ft-brand .logo-mark{height:46px;width:auto;flex:0 0 auto;display:block;border-radius:0;object-fit:contain;background:transparent;filter:drop-shadow(0 0 6px rgba(255,246,225,.5))}
.ft-brand .brand-name b{font-size:15.5px}
.ft-brand .brand-name i{font-size:8.5px}
.ft-col h4{color:var(--gold-light);font-family:var(--serif);font-size:14px;margin-bottom:12px;letter-spacing:.1em}
.ft-col a,.ft-col p{display:block;margin-bottom:7px;color:rgba(244,238,226,.55);font-weight:300;font-size:13.5px}
.ft-col a:hover{color:var(--cinnabar)}
.ft-bottom{max-width:1200px;margin:30px auto 0;padding-top:22px;border-top:1px solid rgba(244,238,226,.1);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:rgba(244,238,226,.4);font-size:12.5px}
.ft-note{color:var(--cinnabar);font-size:12px}

/* ===== WORKGROUP NOTE ===== */
.wg-note{max-width:1200px;margin:0 auto;padding:40px 6vw;text-align:center;font-size:13px;color:var(--ink-faint);letter-spacing:.05em}
.wg-note b{color:var(--cinnabar);font-weight:500}

/* ===== 美业赋能·服务口号横幅（对外·clients 页） ===== */
.slogan-band{background:linear-gradient(165deg,#16293f 0%,#1d3b59 55%,#234a6e 100%);color:var(--paper);text-align:center}
.slogan-band .sec-head{margin-bottom:40px}
.slogan-band .sec-kicker{color:var(--gold-light);justify-content:center}
.slogan-band .sec-kicker::before{display:none}
.slogan-band .sec-title{color:var(--paper)}
.slogan-band .sec-desc{color:rgba(244,238,226,.7);margin-left:auto;margin-right:auto}
.slogan-pair{display:flex;flex-direction:column;gap:20px;max-width:860px;margin:0 auto;padding:0 6vw}
.slogan-line{font-family:var(--serif);font-weight:700;font-size:clamp(22px,3.4vw,40px);line-height:1.55;color:var(--paper);
  border:1px solid rgba(176,141,87,.55);border-radius:8px;padding:24px 28px;background:rgba(176,141,87,.07);
  letter-spacing:.05em;box-shadow:0 10px 30px rgba(8,18,30,.25)}
.slogan-line .em{color:var(--gold-light)}
.slogan-band .btn-primary{margin-top:42px}

/* ===== RESPONSIVE ===== */
@media(max-width:900px){
  .menu{display:none}
  .nav-toggle{display:block}
  /* 窄窗口/手机上：标题块还原不挪位（手机画面里树根不在取景位，挪了会乱） */
  .hero-inner{transform:none}
  /* 手机上：按钮块绝对定位放左下（不动 .hero 弹性布局，避免标题顶到 logo/文字溢出） */
  .hero-cta{position:absolute;left:6vw;right:auto;bottom:13vh;justify-content:flex-start}
  .hero-tag{position:static} /* 手机端取消左移，防止溢出 */
  .scroll-hint{display:none}
  /* 窄窗口/手机上压缩主标题字号，保证「别人追风口／我把根扎进土里近三十年」始终两行 */
  .hero h1{font-size:clamp(26px,7.2vw,38px)}
  .menu.open{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;gap:0;background:rgba(244,238,226,.98);padding:10px 6vw 20px}
  .menu.open a{color:var(--ink-soft);padding:14px 0;border-bottom:1px solid var(--line)}
  .hero-seal{top:auto;bottom:90px;right:6vw;font-size:26px}
  .ov-grid,.biz-grid,.arch-grid,.mx-grid{grid-template-columns:1fr}
  .win-grid{grid-template-columns:1fr}
  .win-1,.win-2,.win-3,.win-4,.win-5,.win-6,.win-love,.win-feature{grid-column:span 1}
  .win-feature{flex-direction:column;align-items:flex-start;gap:14px}
  .service-list{grid-template-columns:1fr}
  .ct-grid{grid-template-columns:1fr;gap:40px}
  section{padding:80px 6vw}
}

/* ===== 微信客服入口 ===== */
/* 导航栏：联系客服按钮（金边胶囊） */
.nav .nav-kf{display:inline-block;margin-left:18px;padding:8px 18px;border:1px solid var(--gold);border-radius:999px;color:var(--gold-light);font-size:13px;line-height:1.4;letter-spacing:2px;transition:all .3s;white-space:nowrap}
.nav .nav-kf:hover{background:var(--gold);color:#fff;opacity:1}
/* 页脚：在线咨询链接 */
.ft-kf{display:inline-block;margin-top:12px;color:var(--gold-light);font-size:14px;letter-spacing:1px;border-bottom:1px dashed rgba(176,141,87,.5);padding-bottom:2px;transition:color .3s}
.ft-kf:hover{color:#fff;border-bottom-color:#fff}
/* 商务合作页：大按钮卡片 */
.kf-cta{display:flex;align-items:center;gap:16px;padding:16px 20px;margin:10px 0 16px;border:1px solid var(--gold);border-radius:12px;background:linear-gradient(135deg,rgba(176,141,87,.10),rgba(176,141,87,.03));text-decoration:none;transition:box-shadow .3s,transform .3s}
.kf-cta:hover{box-shadow:0 6px 20px rgba(176,141,87,.25);transform:translateY(-2px)}
.kf-cta .kf-ic{flex:0 0 44px;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--gold);color:#fff;font-size:20px;font-family:var(--serif)}
.kf-cta .kf-tx b{display:block;font-size:17px;color:var(--paper);letter-spacing:1px;font-family:var(--serif)}
.kf-cta .kf-tx i{display:block;font-style:normal;font-size:13px;color:rgba(244,238,226,.66);margin-top:4px;letter-spacing:.5px}

/* ===== 实战手记 NOTES ===== */
.notes{background:var(--paper)}
.note-list{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:20px}
.note-card{background:var(--paper-2);border:1px solid var(--line);border-left:4px solid var(--gold);
  padding:26px 30px;transition:box-shadow .35s ease,transform .35s ease,background .35s ease}
.note-card:hover{box-shadow:0 14px 34px rgba(31,28,24,.10);transform:translateY(-3px)}
.note-card[open]{background:var(--paper);box-shadow:0 16px 38px rgba(31,28,24,.12)}
.note-card summary{cursor:pointer;list-style:none}
.note-card summary::-webkit-details-marker{display:none}
.note-top{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.note-date{font-family:var(--serif);color:var(--gold);font-size:14px;letter-spacing:.1em}
.note-tag{font-size:12px;color:var(--cinnabar);border:1px solid rgba(178,58,46,.38);padding:2px 9px;border-radius:3px;letter-spacing:.05em}
.note-title{font-family:var(--serif);font-size:clamp(19px,2.4vw,25px);line-height:1.45;color:var(--ink);font-weight:700}
.note-sum{margin-top:8px;color:var(--ink-soft);font-weight:300;font-size:15px}
.note-card summary::after{content:'展开全文 ↓';float:right;font-family:var(--sans);font-size:12.5px;
  color:var(--gold);font-weight:400;letter-spacing:.1em;margin-left:16px;line-height:2}
.note-card[open] summary::after{content:'收起 ↑';float:right}
.note-body{margin-top:20px;padding-top:20px;border-top:1px dashed var(--line)}
.note-body p{color:var(--ink-soft);font-weight:300;font-size:15.5px;line-height:1.9;margin-bottom:16px}
.note-body h4{font-family:var(--serif);font-size:18px;color:var(--ink);font-weight:600;margin:26px 0 10px}
.note-body ol,.note-body ul{margin:0 0 16px 22px;color:var(--ink-soft);font-weight:300;font-size:15.5px;line-height:1.9}
.note-body ol li,.note-body ul li{margin-bottom:8px}
.note-body strong{color:var(--ink);font-weight:500}
.note-pull{font-family:var(--serif);font-size:clamp(17px,2.2vw,21px);line-height:1.75;color:var(--cinnabar);
  border-left:4px solid var(--gold);padding-left:20px;margin:22px 0}
.note-rule{max-width:860px;margin:0 auto 8px;padding:14px 18px;border:1px dashed var(--gold);border-radius:8px;
  background:rgba(201,162,77,.06);text-align:left}
.note-rule strong,.note-rule b{color:var(--ink)}
.note-amend{margin:26px 0 18px;padding:14px 18px;border:1px dashed var(--cinnabar);border-radius:8px;background:rgba(178,34,34,.04)}
.note-amend h4{margin:0 0 8px;font-size:15px;color:var(--cinnabar);font-weight:600;letter-spacing:.5px}
.note-amend p{font-size:14.5px;line-height:1.85;margin-bottom:0}
.note-body .note-amend p{margin-bottom:8px}
@media(max-width:900px){
  .note-card{padding:20px 18px}
  .note-card summary::after{margin-top:6px}
}

/* ===== 隐私政策页（privacy.html）：沿用既有墨蓝/暗金/宣纸色系 ===== */
.pp{background:var(--paper);padding:80px 6vw}
.pp-wrap{max-width:860px;margin:0 auto;background:var(--paper-2);border:1px solid var(--line);
  border-left:4px solid var(--gold);padding:44px 46px}
.pp-meta{font-family:var(--serif);color:var(--cinnabar);font-size:14px;letter-spacing:.08em;
  padding-bottom:16px;margin-bottom:6px;border-bottom:1px dashed var(--line)}
.pp-h2{font-family:var(--serif);font-size:clamp(18px,2.2vw,22px);color:var(--ink);font-weight:700;
  margin:32px 0 10px;letter-spacing:.02em}
.pp-sub{font-size:15px;color:var(--ink);font-weight:500;margin:18px 0 6px}
.pp-p{color:var(--ink-soft);font-weight:300;font-size:15.5px;line-height:1.9;margin-bottom:12px}
.pp-list{margin:0 0 16px 22px;color:var(--ink-soft);font-weight:300;font-size:15.5px;line-height:1.9}
.pp-list li{margin-bottom:8px}
.pp-cta{margin-top:34px;text-align:center}

/* ===== 页脚合规栏（企业全称 / ICP / 公安 / 隐私政策） ===== */
.ft-col--brand{max-width:320px}
.ft-legal{max-width:1200px;margin:14px auto 0;padding-top:12px;border-top:1px solid rgba(244,238,226,.1);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 22px;color:rgba(244,238,226,.45);font-size:12.5px}
.ft-legal-i{display:inline-block}
.ft-legal-i b{color:var(--gold-light);font-weight:400;font-family:var(--serif);letter-spacing:.06em}
.ft-legal a{color:rgba(244,238,226,.62);border-bottom:1px dotted rgba(176,141,87,.5);padding-bottom:1px}
.ft-legal a:hover{color:var(--gold-light);border-bottom-color:var(--gold-light)}

/* ===== 响应式补充：手机端（≤768px / ≤480px），桌面观感不变 ===== */
@media(max-width:768px){
  footer{padding:38px 6vw 30px}
  .ft-inner{flex-direction:column;gap:22px}
  .ft-col,.ft-col--brand{width:100%;max-width:none}
  .ft-bottom{flex-direction:column;align-items:flex-start;gap:6px;font-size:12px}
  .ft-legal{flex-direction:column;align-items:flex-start;gap:6px;font-size:12px;line-height:1.8}
  .ft-legal a{border-bottom:none;text-decoration:underline}
  .ft-kf{display:inline-block;margin-top:10px}
  .wg-note{padding:28px 6vw;font-size:12px;line-height:1.9}
  .page-hero{padding:120px 6vw 56px}
  .crumb{padding:20px 6vw 0}
  .pp{padding:56px 6vw}
  .pp-wrap{padding:26px 20px}
  /* 表格/长内容不横向溢出：窄屏改为可横向滑动的块 */
  table{display:block;width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
}
@media(max-width:480px){
  .nav{padding:14px 5vw}
  .nav.scrolled{padding:10px 5vw}
  .brand .logo-mark{height:46px}
  .brand-name b{font-size:15px;letter-spacing:4px;padding-left:4px}
  .menu.open{padding:8px 5vw 16px}
  section{padding:64px 5vw}
  .ft-bottom,.ft-legal{font-size:11.5px}
  .pp{padding:44px 5vw}
  .pp-wrap{padding:22px 16px}
}
/* 窄屏（≤400px）联系项长串（邮箱/长文本）可断行，避免顶宽被裁 */
@media(max-width:400px){.ct-item .tx{min-width:0;overflow-wrap:anywhere}}

/* AI 生成内容标识（《人工智能生成合成内容标识办法》合规要求） */
/* 注：选择器写作 p.ph-ai-note —— 站内已有 .page-hero p（0,1,1）优先级高于纯类名（0,1,0），
   加元素名后同级且位于文件末尾，方可生效；未改动任何既有规则。 */
p.ph-ai-note{position:absolute;right:14px;bottom:10px;margin:0;font-size:11px;letter-spacing:.05em;color:rgba(255,255,255,.55);text-shadow:0 1px 3px rgba(0,0,0,.45);z-index:3;pointer-events:none}
@media(max-width:600px){p.ph-ai-note{font-size:10px;right:10px;bottom:8px}}