/* =========================================================
   薛仁明 · 介绍页
   纸 · 墨 · 朱   单页静态站点
   ========================================================= */

:root{
  --paper:      #f7f2e8;
  --paper-2:    #efe7d7;
  --paper-card: #fbf8f0;
  --ink:        #1e1b17;
  --ink-2:      #4b443a;
  --ink-3:      #8b8175;
  --cinnabar:   #a33a2a;
  --cinnabar-d: #832b1e;
  --gold:       #ad8b57;
  --line:       rgba(30,27,23,.14);
  --line-soft:  rgba(30,27,23,.08);

  --serif: "Songti SC","Source Han Serif SC","Noto Serif CJK SC","STSong","SimSun",serif;
  --kai:   "Kaiti SC","STKaiti","KaiTi","Songti SC",serif;

  --ease: cubic-bezier(.22,.68,.24,1);
  --shadow: 0 18px 50px -24px rgba(30,27,23,.35);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top:88px; -webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--serif);
  font-size:17px;
  line-height:1.95;
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* 纸纹 */
body::after{
  content:"";
  position:fixed; inset:0;
  pointer-events:none; z-index:9999;
  opacity:.16;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='220' height='220' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
  mix-blend-mode:multiply;
}

::selection{background:var(--cinnabar); color:var(--paper)}

img{max-width:100%; height:auto; display:block}

/* 防止网格子项被图片/长串撑破 */
.hero-grid > *,
.about-grid > *,
.feature-book > *,
.book-grid > *,
.kids > *,
.lecture-grid > *,
.voice-grid > *,
.contact-grid > *,
.pillars > *,
.principles > *{min-width:0}
a{color:inherit; text-decoration:none}
h1,h2,h3,p,blockquote,figure,dl,dd{margin:0}
ul,ol{margin:0; padding:0; list-style:none}
button{font:inherit; color:inherit; cursor:pointer}

.container{
  width:min(1180px, calc(100% - 72px));
  margin-inline:auto;
}

/* ================= 阅读进度 ================= */
.progress{
  position:fixed; top:0; left:0; z-index:100;
  height:2px; width:0%;
  background:var(--cinnabar);
  transition:width .1s linear;
}

/* ================= 印章 ================= */
.seal{
  display:inline-grid; place-items:center;
  width:2.5em; height:2.5em;
  font-family:var(--kai);
  font-size:15px; line-height:1;
  color:#fdf6ea;
  background:var(--cinnabar);
  border-radius:3px;
  transform:rotate(-4deg);
  box-shadow:
    inset 0 0 0 2px rgba(255,255,255,.28),
    inset 0 0 0 3px rgba(0,0,0,.06),
    0 6px 16px -8px rgba(131,43,30,.8);
  letter-spacing:0;
  flex:none;
}
.seal--sm{font-size:13px; width:2.35em; height:2.35em}
.seal--figure{
  position:absolute; right:-14px; bottom:34px;
  font-size:17px; width:3.1em; height:3.1em;
  transform:rotate(6deg);
}
.seal--band{
  font-size:26px; width:2.6em; height:2.6em;
  background:#b8412e;
  transform:rotate(-5deg);
}

/* ================= 导航 ================= */
.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:80;
  transition:background .4s var(--ease), box-shadow .4s var(--ease), border-color .4s;
  border-bottom:1px solid transparent;
}
.site-nav.scrolled{
  background:rgba(247,242,232,.88);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line-soft);
}
.nav-inner{
  height:76px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand{display:flex; align-items:center; gap:12px; flex:none}
.brand-text{
  font-size:19px; letter-spacing:.22em; font-weight:500;
}
.menu{display:flex; align-items:center; gap:6px}
.menu a{
  position:relative;
  font-size:13.5px; letter-spacing:.12em;
  color:var(--ink-2);
  padding:8px 12px;
  transition:color .3s;
}
.menu a i{
  font-style:normal; font-family:var(--kai);
  font-size:11px; color:var(--cinnabar);
  margin-right:3px; opacity:.85;
}
.menu a::after{
  content:""; position:absolute; left:12px; right:12px; bottom:4px;
  height:1px; background:var(--cinnabar);
  transform:scaleX(0); transform-origin:left;
  transition:transform .4s var(--ease);
}
.menu a:hover{color:var(--ink)}
.menu a:hover::after,
.menu a.active::after{transform:scaleX(1)}
.menu a.active{color:var(--ink)}
.menu-cta{
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 22px !important;
  margin-left:10px;
  transition:background .3s, color .3s, border-color .3s;
}
.menu-cta::after{display:none}
.menu-cta:hover{background:var(--ink); color:var(--paper); border-color:var(--ink)}

.burger{
  display:none;
  width:44px; height:44px;
  border:0; background:none; padding:0;
  position:relative;
}
.burger span{
  position:absolute; left:10px; right:10px; height:1.5px;
  background:var(--ink); transition:transform .35s var(--ease), opacity .3s;
}
.burger span:nth-child(1){top:16px}
.burger span:nth-child(2){top:22px}
.burger span:nth-child(3){top:28px}

/* ================= HERO ================= */
.hero{
  position:relative;
  min-height:100svh;
  display:flex; align-items:center;
  padding:130px 0 90px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(120% 80% at 78% 18%, rgba(173,139,87,.10), transparent 55%),
    radial-gradient(90% 70% at 8% 88%, rgba(163,58,42,.07), transparent 60%);
  pointer-events:none;
}
/* 右侧竖排小字（书口） */
.hero-side{
  position:absolute;
  right:22px; top:50%;
  transform:translateY(-50%);
  writing-mode:vertical-rl;
  font-family:var(--kai);
  font-size:11.5px;
  letter-spacing:.42em;
  color:var(--ink-3);
  opacity:.75;
  pointer-events:none;
}
.hero-side::before{
  content:"";
  display:block;
  width:1px; height:56px;
  margin:0 auto 16px;
  background:var(--line);
}
.hero-grid{
  position:relative; z-index:2;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:clamp(32px, 5vw, 76px);
  align-items:center;
}

.kicker{
  font-size:12.5px; letter-spacing:.32em;
  color:var(--ink-3);
  margin-bottom:26px;
}
.hero-name{
  font-size:clamp(64px, 9.6vw, 138px);
  line-height:.94;
  letter-spacing:.07em;
  font-weight:500;
  margin-left:-.04em;
}
.hero-tagline{
  display:flex; align-items:center; gap:18px;
  margin-top:28px;
}
.hero-tagline .rule{
  width:56px; height:1px; background:var(--cinnabar); flex:none;
}
.tagline{
  font-family:var(--kai);
  font-size:clamp(17px, 1.5vw, 21px);
  letter-spacing:.28em;
  color:var(--cinnabar-d);
}
.hero-desc{
  margin-top:28px;
  color:var(--ink-2);
  font-size:16.5px;
  line-height:2.15;
  letter-spacing:.04em;
}
.mark{
  position:relative; color:var(--ink); white-space:nowrap;
}
.mark::after{
  content:""; position:absolute; left:-2px; right:-2px; bottom:.12em;
  height:.42em; background:rgba(163,58,42,.16); z-index:-1;
}
.hero-actions{display:flex; gap:14px; margin-top:38px}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  height:52px; padding:0 34px;
  font-size:14px; letter-spacing:.16em;
  border-radius:2px;
  transition:transform .4s var(--ease), background .35s, color .35s, border-color .35s, box-shadow .4s;
}
.btn--solid{
  background:var(--ink); color:var(--paper);
  box-shadow:0 12px 28px -16px rgba(30,27,23,.9);
}
.btn--solid:hover{background:var(--cinnabar-d); transform:translateY(-2px)}
.btn--ghost{
  border:1px solid var(--line); color:var(--ink);
}
.btn--ghost:hover{border-color:var(--ink); transform:translateY(-2px)}
.btn--full{width:100%; margin-top:8px}

.hero-meta{
  display:flex; flex-wrap:wrap; gap:10px 30px;
  margin-top:46px; padding-top:24px;
  border-top:1px solid var(--line-soft);
  font-size:13px; color:var(--ink-3); letter-spacing:.08em;
}
.hero-meta b{
  font-weight:500; color:var(--ink); margin-right:8px;
  font-family:var(--serif);
  letter-spacing:.1em;
}

.hero-figure{position:relative; margin:0}
.photo-frame{
  padding:12px;
  background:var(--paper-card);
  border:1px solid var(--line-soft);
  box-shadow:var(--shadow);
}
.photo-frame img{
  width:100%; aspect-ratio:5/4; object-fit:cover; object-position:50% 28%;
  filter:saturate(.94) contrast(1.02);
}
.hero-figure figcaption{
  margin-top:14px;
  font-size:12px; color:var(--ink-3); letter-spacing:.14em;
}

.hero-scroll{
  position:absolute; left:50%; bottom:26px; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  font-size:10.5px; letter-spacing:.4em; color:var(--ink-3);
}
.hero-scroll i{
  width:1px; height:42px; background:linear-gradient(var(--ink-3), transparent);
  animation:drop 2.4s var(--ease) infinite;
}
@keyframes drop{
  0%{transform:scaleY(0); transform-origin:top; opacity:0}
  40%{transform:scaleY(1); transform-origin:top; opacity:1}
  70%{transform:scaleY(1); transform-origin:bottom; opacity:1}
  100%{transform:scaleY(0); transform-origin:bottom; opacity:0}
}

/* ================= 通用 section ================= */
.section{
  position:relative;
  padding:clamp(84px, 10vw, 150px) 0;
  border-top:1px solid var(--line-soft);
}
.section--tint{
  background:linear-gradient(180deg, var(--paper-2), #f2ecdd 60%, var(--paper));
}
.sec-head{
  margin-bottom:clamp(44px, 6vw, 78px);
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(260px, 390px);
  grid-template-rows:auto auto;
  column-gap:clamp(32px, 5vw, 72px);
}
.sec-kicker{
  grid-column:1;
  display:flex; align-items:center; gap:14px;
  font-size:11px; letter-spacing:.4em;
  color:var(--ink-3);
  margin-bottom:16px;
}
.sec-kicker .num{
  font-family:var(--kai);
  font-size:15px; letter-spacing:0;
  color:var(--cinnabar);
}
.sec-kicker::after{
  content:""; width:44px; height:1px; background:var(--line);
}
.sec-title{
  grid-column:1;
  font-size:clamp(28px, 3.5vw, 44px);
  font-weight:500;
  line-height:1.45;
  letter-spacing:.03em;
}
.sec-lead{
  grid-column:2; grid-row:1 / 3;
  align-self:end;
  font-size:15px; line-height:2.05;
  color:var(--ink-2);
  padding-bottom:6px;
  border-left:1px solid var(--line);
  padding-left:26px;
}

/* ================= 壹 · 其人 ================= */
.about-grid{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:clamp(36px, 5vw, 76px);
  align-items:start;
}
.about-text p{
  color:var(--ink-2);
  margin-bottom:22px;
  max-width:60ch;
}
.about-text .lead{
  font-size:20px; line-height:2;
  color:var(--ink);
  letter-spacing:.03em;
}
.dim{color:var(--ink-3)}
.signature{
  display:flex; align-items:center; gap:16px;
  margin:44px 0 6px;
}
.sig-name{
  font-family:var(--kai);
  font-size:40px; line-height:1;
  letter-spacing:.16em;
  color:var(--ink);
  opacity:.82;
}
.seal--sig{
  font-size:11px; width:3em; height:3em;
  background:rgba(163,58,42,.86);
  transform:rotate(7deg);
}
.text-link{
  display:inline-flex; align-items:center; gap:10px;
  margin-top:12px;
  font-size:14px; letter-spacing:.14em;
  color:var(--cinnabar);
  border-bottom:1px solid rgba(163,58,42,.3);
  padding-bottom:6px;
  transition:gap .35s var(--ease), border-color .35s;
}
.text-link:hover{gap:18px; border-color:var(--cinnabar)}

.about-figure img{
  width:100%; aspect-ratio:4/3; object-fit:cover;
  filter:saturate(.95);
  box-shadow:var(--shadow);
}
.about-figure figcaption{
  margin-top:12px;
  font-size:11.5px; color:var(--ink-3); letter-spacing:.1em;
}
.facts{
  margin-top:34px;
  border-top:1px solid var(--line);
}
.facts > div{
  display:grid;
  grid-template-columns:82px 1fr;
  gap:18px;
  padding:13px 0;
  border-bottom:1px solid var(--line-soft);
  font-size:14px;
}
.facts dt{
  color:var(--ink-3);
  letter-spacing:.16em;
  font-size:12.5px;
  padding-top:2px;
}
.facts dd{color:var(--ink-2); line-height:1.75}

/* ================= 贰 · 学思 ================= */
.pillars{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.pillar{
  position:relative;
  background:var(--paper-card);
  padding:clamp(30px, 3.4vw, 46px);
  overflow:hidden;
  transition:background .5s var(--ease);
}
.pillar:hover{background:#fffdf7}
.pillar-char{
  position:absolute;
  right:-8px; top:-26px;
  font-size:150px; line-height:1;
  color:var(--cinnabar);
  opacity:.055;
  font-weight:500;
  pointer-events:none;
  transition:opacity .6s, transform .8s var(--ease);
}
.pillar:hover .pillar-char{opacity:.1; transform:translateY(6px)}
.pillar h3{
  font-size:19px; font-weight:500;
  letter-spacing:.12em;
  margin-bottom:16px;
  color:var(--ink);
}
.pillar h3::after{
  content:""; display:block;
  width:28px; height:1px; background:var(--cinnabar);
  margin-top:16px;
}
.pillar p{
  font-size:15px; line-height:2.05;
  color:var(--ink-2);
}

/* ================= 语录 band ================= */
.band{
  background:var(--ink);
  color:#efe7d7;
  padding:clamp(64px, 8vw, 104px) 0;
  position:relative;
  overflow:hidden;
}
.band::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(80% 120% at 82% 30%, rgba(163,58,42,.2), transparent 62%);
  pointer-events:none;
}
.band-inner{
  position:relative;
  display:grid;
  grid-template-columns:auto 1fr;
  gap:clamp(28px, 4vw, 56px);
  align-items:center;
}
.band-quote p{
  font-family:var(--kai);
  font-size:clamp(30px, 4.4vw, 54px);
  line-height:1.5;
  letter-spacing:.1em;
  color:#f6efe0;
}
.band-note{
  grid-column:2;
  margin-top:26px;
  font-size:14px; line-height:2.1;
  color:rgba(239,231,215,.62);
  letter-spacing:.06em;
}

/* ================= 叁 · 教养 ================= */
.big-quote{
  padding:clamp(34px, 4.6vw, 58px) clamp(28px, 4vw, 56px);
  background:var(--paper-card);
  border-left:2px solid var(--cinnabar);
  margin-bottom:clamp(48px, 6vw, 76px);
}
.big-quote blockquote{
  font-family:var(--kai);
  font-size:clamp(21px, 2.5vw, 31px);
  line-height:1.95;
  letter-spacing:.06em;
  color:var(--ink);
}
.big-quote figcaption{
  margin-top:22px;
  font-size:13px; color:var(--ink-3); letter-spacing:.14em;
}

.principles{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:0 clamp(32px, 4vw, 64px);
}
.principles li{
  padding:30px 0;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:auto 1fr;
  column-gap:22px;
}
.principles .idx{
  font-family:var(--kai);
  font-size:13px; color:var(--cinnabar);
  letter-spacing:.1em;
  padding-top:6px;
}
.principles h3{
  font-size:18px; font-weight:500; letter-spacing:.1em;
  margin-bottom:10px;
}
.principles p{
  grid-column:2;
  font-size:14.5px; line-height:2;
  color:var(--ink-2);
}

.kids{
  margin-top:clamp(52px, 6vw, 84px);
  padding-top:clamp(40px, 5vw, 60px);
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:.8fr 1.2fr;
  gap:clamp(28px, 4vw, 64px);
}
.kids-head h3{
  font-size:clamp(22px, 2.4vw, 28px);
  font-weight:500; line-height:1.6;
  letter-spacing:.04em;
}
.kids-body p{
  font-size:15px; color:var(--ink-2); margin-bottom:18px;
}
.mini-quote{
  font-family:var(--kai);
  font-size:18px; line-height:2;
  color:var(--ink);
  padding-left:20px;
  border-left:1px solid var(--cinnabar);
  letter-spacing:.04em;
}

/* ================= 肆 · 著作 ================= */
.feature-book{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:clamp(32px, 4.5vw, 64px);
  align-items:center;
  padding:clamp(28px, 4vw, 48px);
  background:var(--paper-card);
  border:1px solid var(--line-soft);
  margin-bottom:clamp(44px, 5vw, 64px);
  box-shadow:0 24px 60px -46px rgba(30,27,23,.6);
}
.feature-cover img{
  width:100%;
  mix-blend-mode:multiply;
  filter:contrast(1.02);
  transition:transform .7s var(--ease);
}
.feature-book:hover .feature-cover img{transform:translateY(-6px) rotate(-.6deg)}
.badge{
  display:inline-block;
  font-size:11px; letter-spacing:.24em;
  color:var(--cinnabar);
  border:1px solid rgba(163,58,42,.32);
  padding:4px 12px;
  margin-bottom:16px;
}
.feature-info h3{
  font-size:clamp(26px, 3vw, 36px);
  font-weight:500; letter-spacing:.08em;
  margin-bottom:10px;
}
.feature-sub{
  font-size:13px; color:var(--ink-3); letter-spacing:.1em;
  margin-bottom:18px;
}
.feature-info p{font-size:15px; color:var(--ink-2); line-height:2.05; margin-bottom:14px}
.feature-quote{
  font-family:var(--kai);
  font-size:16.5px !important;
  color:var(--ink) !important;
  border-top:1px solid var(--line-soft);
  padding-top:16px;
}
.feature-meta{font-size:12px !important; color:var(--ink-3) !important; letter-spacing:.1em; margin:0 !important}

.book-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:clamp(26px, 3vw, 40px);
}
.book-cover{
  position:relative;
  aspect-ratio:3/4.1;
  display:flex; align-items:flex-start; justify-content:center;
  padding:30px 0 26px;
  margin-bottom:18px;
  border:1px solid rgba(0,0,0,.08);
  box-shadow:0 18px 38px -30px rgba(30,27,23,.9);
  transition:transform .6s var(--ease), box-shadow .6s var(--ease);
  overflow:hidden;
}
.book-cover::before{
  content:""; position:absolute; inset:0 auto 0 0; width:7px;
  background:linear-gradient(90deg, rgba(0,0,0,.24), rgba(255,255,255,.06));
}
.book-cover::after{
  content:""; position:absolute; inset:12px;
  border:1px solid rgba(255,255,255,.22);
  pointer-events:none;
}
.book:hover .book-cover{
  transform:translateY(-6px);
  box-shadow:0 30px 50px -30px rgba(30,27,23,.75);
}
.book-title{
  writing-mode:vertical-rl;
  font-size:clamp(17px, 1.7vw, 21px);
  letter-spacing:.22em;
  color:#f8f2e6;
  line-height:1.3;
  text-shadow:0 1px 0 rgba(0,0,0,.15);
}
.book-seal{
  position:absolute; left:22px; bottom:20px;
  width:26px; height:26px;
  display:grid; place-items:center;
  font-family:var(--kai); font-size:12px;
  color:#fff2e4;
  background:rgba(163,58,42,.92);
  border-radius:2px;
}
.book-cover--a{background:linear-gradient(160deg,#7d8b79,#5f6d5d)}
.book-cover--b{background:linear-gradient(160deg,#b58e58,#94703f)}
.book-cover--c{background:linear-gradient(160deg,#5f6874,#454d59)}
.book-cover--d{background:linear-gradient(160deg,#9a6a51,#7a4f3a)}
.book-cover--e{background:linear-gradient(160deg,#6e7b6b,#535e51)}
.book-cover--f{background:linear-gradient(160deg,#8a6a6d,#6b4f53)}

.book h3{
  font-size:17px; font-weight:500; letter-spacing:.06em;
  margin-bottom:6px;
}
.book-meta{
  font-size:11.5px; color:var(--ink-3); letter-spacing:.12em;
  margin-bottom:10px;
}
.book-desc{font-size:13.5px; line-height:1.9; color:var(--ink-2)}
.more-books{
  margin-top:clamp(36px, 4vw, 52px);
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:13.5px; color:var(--ink-3); letter-spacing:.06em;
}

/* ================= 伍 · 讲学 ================= */
.lecture-grid{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:clamp(36px, 5vw, 72px);
  align-items:start;
}
.tl-item{
  display:grid;
  grid-template-columns:96px 1fr;
  gap:24px;
  padding:22px 0;
  border-top:1px solid var(--line);
  transition:padding-left .4s var(--ease);
}
.tl-item:hover{padding-left:8px}
.tl-year{
  font-family:var(--serif);
  font-size:15px; letter-spacing:.08em;
  color:var(--cinnabar);
  padding-top:2px;
}
.tl-body p{font-size:15px; color:var(--ink-2); line-height:1.95}

.lecture-side{display:grid; gap:24px}
.side-card{
  background:var(--paper-card);
  border:1px solid var(--line-soft);
  padding:30px 30px 32px;
}
.side-card h3{
  font-size:12px; letter-spacing:.3em; color:var(--ink-3);
  font-weight:400;
  padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);
  margin-bottom:16px;
}
.topic-list li{
  font-size:14.5px; color:var(--ink-2);
  padding:8px 0 8px 16px;
  position:relative;
  border-bottom:1px dashed var(--line-soft);
}
.topic-list li:last-child{border-bottom:0}
.topic-list li::before{
  content:""; position:absolute; left:0; top:18px;
  width:5px; height:5px; border-radius:50%;
  background:var(--cinnabar); opacity:.55;
}
.tags{display:flex; flex-wrap:wrap; gap:8px}
.tags li{
  font-size:12.5px; letter-spacing:.1em;
  color:var(--ink-2);
  border:1px solid var(--line);
  padding:4px 12px;
  border-radius:999px;
}
.side-note{
  margin-top:16px;
  font-size:12.5px; color:var(--ink-3); line-height:1.85;
}

/* ================= 陆 · 评说 ================= */
.voice-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
.voice{
  background:var(--paper-card);
  padding:clamp(28px, 3vw, 40px);
  display:flex; flex-direction:column; justify-content:space-between;
  gap:26px;
  position:relative;
}
.voice p{
  font-family:var(--kai);
  font-size:17.5px; line-height:2;
  color:var(--ink);
  letter-spacing:.04em;
}
.voice footer{
  font-size:12.5px; letter-spacing:.14em; color:var(--ink-2);
  border-top:1px solid var(--line-soft);
  padding-top:16px;
}
.voice footer span{
  display:block;
  font-size:11px; color:var(--ink-3); letter-spacing:.1em;
  margin-top:4px;
}

.press{margin-top:clamp(48px, 6vw, 72px)}
.press h3{
  font-size:12px; letter-spacing:.3em; color:var(--ink-3); font-weight:400;
  padding-bottom:14px; border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
.press-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  column-gap:clamp(24px, 4vw, 64px);
}
.press-list a{
  display:flex; justify-content:space-between; align-items:baseline; gap:20px;
  padding:16px 0;
  border-bottom:1px solid var(--line-soft);
  transition:padding-left .4s var(--ease), color .3s;
}
.press-list a:hover{padding-left:10px; color:var(--cinnabar-d)}
.press-title{font-size:14.5px; color:var(--ink); letter-spacing:.02em}
.press-meta{font-size:11px; color:var(--ink-3); letter-spacing:.08em; flex:none}

/* ================= 柒 · 邀约 ================= */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 460px;
  gap:clamp(40px, 6vw, 88px);
  align-items:start;
}
.contact-copy .sec-title{margin-bottom:22px}
.contact-copy .lead{
  font-size:16px; color:var(--ink-2); line-height:2.1;
  max-width:44ch;
}
.contact-types{margin-top:38px; border-top:1px solid var(--line)}
.contact-types li{
  display:grid; grid-template-columns:110px 1fr; gap:18px;
  padding:14px 0;
  border-bottom:1px solid var(--line-soft);
  font-size:14px;
}
.contact-types b{font-weight:500; letter-spacing:.1em; color:var(--ink)}
.contact-types span{color:var(--ink-3); font-size:13.5px}

.contact-form{
  background:var(--paper-card);
  border:1px solid var(--line-soft);
  padding:clamp(26px, 3vw, 38px);
  box-shadow:0 24px 60px -50px rgba(30,27,23,.8);
}
.field{margin-bottom:22px}
.field label{
  display:block;
  font-size:11px; letter-spacing:.26em; color:var(--ink-3);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  background:transparent;
  border:0; border-bottom:1px solid var(--line);
  padding:9px 2px;
  font-family:var(--serif);
  font-size:15px; color:var(--ink);
  border-radius:0;
  transition:border-color .35s;
  outline:none;
}
.field textarea{resize:none; line-height:1.9}
.field input::placeholder,
.field textarea::placeholder{color:#b3a998; font-size:13.5px}
.field input:focus,
.field select:focus,
.field textarea:focus{border-bottom-color:var(--cinnabar)}
.field select{appearance:none; background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%); background-position:calc(100% - 10px) 18px, calc(100% - 5px) 18px; background-size:5px 5px; background-repeat:no-repeat}
.form-note{
  margin-top:14px;
  font-size:11.5px; color:var(--ink-3); line-height:1.8; letter-spacing:.04em;
}
.form-note.ok{color:var(--cinnabar-d)}

/* ================= 页脚 ================= */
.footer{
  background:var(--ink);
  color:rgba(239,231,215,.7);
  padding:clamp(48px, 6vw, 72px) 0 40px;
}
.footer-inner{
  display:grid;
  grid-template-columns:1fr auto;
  grid-template-areas:"brand nav" "legal legal";
  gap:36px 40px;
  align-items:center;
}
.footer-brand{
  grid-area:brand;
  display:flex; align-items:center; gap:16px;
}
.footer-name{
  font-size:20px; letter-spacing:.24em; color:#f6efe0;
}
.footer-slogan{
  font-family:var(--kai);
  font-size:12.5px; letter-spacing:.22em;
  color:rgba(239,231,215,.5);
  margin-top:2px;
}
.footer-nav{
  grid-area:nav;
  display:flex; gap:22px;
  font-size:12.5px; letter-spacing:.14em;
}
.footer-nav a{transition:color .3s}
.footer-nav a:hover{color:#f6efe0}
.footer-legal{
  grid-area:legal;
  padding-top:28px;
  border-top:1px solid rgba(239,231,215,.12);
  font-size:11.5px; line-height:1.9;
  color:rgba(239,231,215,.42);
  letter-spacing:.05em;
}

/* ================= 入场动画 ================= */
/* 渐进增强：默认可见；仅“视口外”的元素由 JS 标记 pending 后再淡入，
   这样 JS 失效或加载慢时页面依然完整可读。 */
.reveal{
  transition:opacity 1s var(--ease), transform 1s var(--ease);
  transition-delay:var(--d, 0s);
}
.reveal.pending{opacity:0; transform:translateY(26px)}
.reveal.pending.in{opacity:1; transform:none}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal, .reveal.pending{opacity:1; transform:none; transition:none}
  .hero-scroll i{animation:none}
  *{transition-duration:.01ms !important; animation-duration:.01ms !important}
}

/* ================= 响应式 ================= */
@media (max-width:1180px){
  .hero-side{display:none}
}
@media (max-width:1080px){
  .hero-name{font-size:clamp(60px, 10vw, 100px)}
  .sec-head{grid-template-columns:1fr}
  .sec-lead{grid-column:1; grid-row:auto; border-left:0; padding-left:0; margin-top:20px; max-width:56ch}
  .contact-grid{grid-template-columns:1fr 400px}
}

@media (max-width:900px){
  .container{width:calc(100% - 48px)}
  .menu{
    position:fixed; inset:0;
    flex-direction:column; justify-content:center; align-items:flex-start;
    gap:6px;
    padding:0 32px;
    background:var(--paper);
    transform:translateY(-100%);
    visibility:hidden;
    transition:transform .55s var(--ease), visibility 0s linear .55s;
    z-index:90;
  }
  .menu.open{transform:none; visibility:visible; transition:transform .55s var(--ease), visibility 0s}
  .menu a{
    font-size:22px; letter-spacing:.16em;
    padding:14px 0;
    width:100%;
    border-bottom:1px solid var(--line-soft);
  }
  .menu a i{font-size:14px; margin-right:10px}
  .menu a::after{display:none}
  .menu-cta{border:0; border-radius:0; padding:14px 0 !important; margin:8px 0 0}
  .burger{display:block; z-index:95}
  .burger.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
  .burger.open span:nth-child(2){opacity:0}
  .burger.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

  .hero{padding-top:110px; min-height:auto}
  .hero-grid{grid-template-columns:1fr; gap:44px}
  .hero-figure{max-width:520px}
  .hero-scroll{display:none}
  .hero-side{display:none}

  .about-grid{grid-template-columns:1fr}
  .about-side{order:-1}
  .pillars{grid-template-columns:1fr}
  .principles{grid-template-columns:1fr}
  .kids{grid-template-columns:1fr}
  .feature-book{grid-template-columns:1fr; text-align:left}
  .feature-cover{max-width:240px}
  .book-grid{grid-template-columns:repeat(2,1fr)}
  .lecture-grid{grid-template-columns:1fr}
  .voice-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .band-inner{grid-template-columns:1fr}
  .band-note{grid-column:1}
  .press-list{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr; grid-template-areas:"brand" "nav" "legal"; gap:28px}
}

@media (max-width:560px){
  body{font-size:16px}
  .container{width:calc(100% - 40px)}
  .nav-inner{height:64px}
  .hero-name{font-size:clamp(52px, 17vw, 72px)}
  .hero-desc{font-size:15.5px}
  .hero-actions{flex-wrap:wrap}
  .btn{flex:1; min-width:130px; padding:0 20px}
  .hero-meta{gap:8px 18px; font-size:12px}
  .book-grid{grid-template-columns:1fr 1fr; gap:22px 18px}
  .book-desc{display:none}
  .book-cover{padding:22px 0 20px}
  .tl-item{grid-template-columns:64px 1fr; gap:16px}
  .seal--figure{right:-6px; bottom:26px}
  .footer-nav{flex-wrap:wrap; gap:14px 18px}
  .press-list a{flex-direction:column; gap:4px}
  .contact-types li{grid-template-columns:1fr; gap:2px}
}