/* ============ 容器约束 ============ */
.section,.gallery-section,.reveal-section{max-width:var(--maxw);margin-left:auto;margin-right:auto;}
.nav-inner,.footer-inner{max-width:var(--maxw);margin:0 auto;width:100%;}

/* ============ 导航 ============ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  padding:0 48px;height:70px;display:flex;align-items:center;
  background:rgba(245,250,249,0.82);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease-01),background var(--dur);
}
.nav.scrolled{border-bottom-color:var(--line);background:rgba(245,250,249,0.95);}
/* hero 上的深色态导航 */
.nav.on-dark{background:transparent;backdrop-filter:none;border-bottom-color:transparent;}
.nav.on-dark .nav-logo{color:#EAF6F4;}
.nav.on-dark .nav-links a{color:rgba(244,238,246,0.82);}
.nav.on-dark .nav-links a:hover{color:#fff;}
.nav.on-dark .nav-toggle span{background:#EAF6F4;}
/* 同时 scrolled 时（已离开 hero）回到浅色态，优先级靠后即可 */
.nav.on-dark.scrolled{background:rgba(245,250,249,0.95);backdrop-filter:blur(14px);}
.nav.on-dark.scrolled .nav-logo{color:var(--text);}
.nav.on-dark.scrolled .nav-links a{color:var(--text-soft);}
.nav-logo .dot,.footer-logo .dot{box-shadow:0 0 8px var(--star),0 0 14px rgba(79,134,198,0.4);}
.nav-logo{
  font-size:17px;letter-spacing:1px;font-weight:800;
  display:flex;align-items:center;gap:10px;
  font-family:'Noto Serif SC',serif;color:var(--text);
}
.nav-logo .dot{width:9px;height:9px;background:var(--accent);border-radius:50%;flex:none;}
.nav-links{display:flex;gap:30px;list-style:none;margin:0;padding:0;align-items:center;}
.nav-links li{list-style:none;}
.nav-links a{
  color:var(--text-soft);font-size:12px;letter-spacing:1px;
  font-weight:600;transition:color var(--dur) var(--ease-01);
}
.nav-links a:hover{color:var(--accent-deep);}

/* ============ 英雄区 ============ */
.hero{
  height:100vh;min-height:620px;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  isolation:isolate;
}
.hero-bg{position:absolute;inset:-50px;background-size:cover;background-position:center;will-change:transform;}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(245,250,249,0.92),rgba(245,250,249,0.5) 45%,rgba(245,250,249,0.88));
}
.hero-aura{
  position:absolute;width:34vw;height:34vw;min-width:320px;min-height:320px;
  border:1px solid rgba(63,181,160,0.28);border-radius:50%;
  pointer-events:none;z-index:1;animation:heroSpin 22s linear infinite;
}
.hero-aura::before,.hero-aura::after{
  content:'';position:absolute;width:8px;height:8px;background:var(--accent);
  border-radius:50%;box-shadow:0 0 22px rgba(63,181,160,0.5);
}
.hero-aura::before{top:12%;left:18%;}
.hero-aura::after{right:10%;bottom:24%;}
.hero-aura-a{left:8vw;top:17vh;}
.hero-aura-b{right:7vw;bottom:8vh;animation-direction:reverse;animation-duration:28s;opacity:0.7;}
.hero-visual{position:absolute;inset:0;z-index:2;pointer-events:none;}
.hero-float{
  position:absolute;overflow:hidden;border-radius:8px;background:var(--card);
  border:1px solid rgba(63,181,160,0.45);box-shadow:0 26px 70px rgba(44,58,66,0.16);
  transform:translate3d(0,0,0) rotate(var(--tilt,0deg));
  will-change:transform;animation:floatPulse 7s var(--ease-02) infinite alternate;
}
.hero-float::before{
  content:'';position:absolute;inset:0;z-index:2;
  background:linear-gradient(115deg,rgba(255,255,255,0.4),transparent 38%,rgba(63,181,160,0.18));
  mix-blend-mode:screen;pointer-events:none;
}
.hero-float-img{position:absolute;inset:-7%;background-size:cover;background-position:center;filter:saturate(1.05) contrast(1.02);}
.hero-float-1{width:235px;height:315px;left:8vw;bottom:14vh;--tilt:-9deg;animation-delay:-1.5s;}
.hero-float-2{width:330px;height:220px;right:10vw;top:18vh;--tilt:7deg;animation-delay:-3s;}
.hero-float-3{width:185px;height:235px;right:21vw;bottom:13vh;--tilt:-4deg;animation-delay:-4.5s;}
.hero-vignette{
  position:absolute;inset:0;z-index:2;
  background:
    radial-gradient(ellipse 90% 90% at 50% 45%,transparent 45%,rgba(245,250,249,0.5) 88%),
    linear-gradient(180deg,transparent 62%,var(--bg) 100%);
}
.hero-content{position:relative;z-index:3;text-align:center;padding:0 20px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--star);font-size:10px;letter-spacing:5px;font-weight:800;margin-bottom:26px;
}
.hero-eyebrow::before,.hero-eyebrow::after{content:'';width:30px;height:2px;background:var(--accent);}
.hero-title{
  font-size:80px;font-weight:700;letter-spacing:8px;line-height:0.95;
  margin-bottom:22px;font-family:'Noto Serif SC',serif;color:#EAF6F4;text-shadow:0 2px 24px rgba(21,39,63,0.5),0 0 30px rgba(191,234,240,0.25);
}
.hero-en{font-size:13px;letter-spacing:6px;font-weight:600;color:#C7DAD9;margin-bottom:38px;}
.hero-en b{color:var(--accent-deep);}
.hero-btn{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--accent);color:var(--text);
  font-size:11px;letter-spacing:3px;padding:15px 40px;font-weight:800;
  transition:all var(--dur) var(--ease-01);
  box-shadow:0 6px 20px rgba(46,140,124,0.22);
}
.hero-btn:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(46,140,124,0.32);}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:8px;z-index:3;}
.scroll-hint span{color:#C7DAD9;font-size:9px;letter-spacing:3px;font-weight:700;}
.scroll-line{width:2px;height:42px;background:linear-gradient(180deg,var(--accent),transparent);}
@keyframes heroSpin{to{transform:rotate(360deg)}}
@keyframes floatPulse{from{translate:0 0}to{translate:0 -16px}}

/* ============ 区块通用 ============ */
.section{padding:88px 48px;position:relative;}
.section.alt{background:var(--bg-2);max-width:none;}
.section.alt > .sec-head,.section.alt > .hscroll-track{max-width:var(--maxw);margin-left:auto;margin-right:auto;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:42px;gap:16px;flex-wrap:wrap;}
.sec-head-l{display:flex;flex-direction:column;gap:8px;}
.sec-num{color:var(--accent-deep);font-size:11px;font-weight:800;letter-spacing:3px;}
.sec-title{
  font-size:38px;font-weight:700;letter-spacing:1px;line-height:1;
  display:flex;align-items:center;gap:14px;font-family:'Noto Serif SC',serif;color:var(--text);
}
.sec-title .jp{font-size:14px;font-weight:500;color:var(--text-faint);letter-spacing:2px;font-family:'Inter',sans-serif;}
.sec-more{
  color:var(--text);font-size:11px;letter-spacing:2px;font-weight:700;
  border:1.5px solid var(--accent);padding:10px 22px;
  transition:all var(--dur) var(--ease-01);white-space:nowrap;
}
.sec-more:hover{background:var(--accent);}

/* ============ 页脚 ============ */
.footer{padding:56px 48px;border-top:1px solid var(--line);background:var(--card);}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:20px;margin-bottom:38px;}
.footer-logo{
  font-size:26px;font-weight:800;letter-spacing:1px;
  display:flex;align-items:center;gap:10px;font-family:'Noto Serif SC',serif;color:var(--text);
}
.footer-logo .dot{width:10px;height:10px;background:var(--accent);border-radius:50%;}
.footer-nav{display:flex;gap:26px;list-style:none;margin:0;padding:0;flex-wrap:wrap;}
.footer-nav li{list-style:none;}
.footer-nav a{color:var(--text-soft);font-size:11px;letter-spacing:1px;font-weight:600;}
.footer-nav a:hover{color:var(--accent-deep);}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;border-top:1px solid var(--line);padding-top:24px;}
.footer-copy{color:var(--text-faint);font-size:10px;letter-spacing:1px;}
.footer-social a{color:var(--text-soft);font-size:11px;font-weight:600;margin-left:18px;}
.footer-social a:hover{color:var(--accent-deep);}

/* ============ 内页紧凑头图 ============ */
.page-hero{position:relative;height:42vh;min-height:320px;display:flex;align-items:center;justify-content:center;overflow:hidden;isolation:isolate;text-align:center;}
.page-hero::after{content:'';position:absolute;inset:0;z-index:1;background:var(--twilight);opacity:0.92;}
.page-hero.has-img::after{opacity:0.82;}
.page-hero-bg{position:absolute;inset:-40px;z-index:0;background-size:cover;background-position:center;filter:saturate(1.05) brightness(0.9);}
.page-hero .hero-stars{position:absolute;inset:0;z-index:2;pointer-events:none;}
.page-hero-vignette{position:absolute;inset:0;z-index:3;background:radial-gradient(ellipse 92% 92% at 50% 42%,transparent 50%,rgba(21,39,63,0.25) 100%),linear-gradient(180deg,transparent 64%,var(--bg) 100%);}
.page-hero-content{position:relative;z-index:4;padding:70px 20px 0;}
.page-hero-title{font-size:46px;font-weight:700;letter-spacing:3px;line-height:1.2;font-family:'Noto Serif SC',serif;color:#EAF6F4;text-shadow:0 2px 24px rgba(21,39,63,0.5),0 0 30px rgba(191,234,240,0.25);max-width:900px;margin:0 auto;}
.page-hero-meta{margin-top:16px;color:#C7DAD9;font-size:12px;letter-spacing:2px;font-weight:600;}

/* ============ 页眉 / 页脚精修 ============ */
/* 顶部极光细线 */
.nav::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),var(--cool),var(--star),transparent);background-size:200% 100%;opacity:0;transition:opacity .5s;animation:auroraLine 8s linear infinite;pointer-events:none;}
.nav.scrolled::before{opacity:.9;}
@keyframes auroraLine{to{background-position:200% 0;}}
/* 滚动后用渐变发丝底线替代死板灰线 */
.nav.scrolled{border-bottom-color:transparent;}
.nav.scrolled::after{content:'';position:absolute;bottom:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--line) 18%,var(--line) 82%,transparent);}
/* 闪烁小星 logo 点 */
.nav-logo .dot,.footer-logo .dot{position:relative;box-shadow:0 0 8px var(--star),0 0 14px rgba(79,134,198,.5);animation:twinkle 3.2s ease-in-out infinite;}
.nav-logo .dot::before,.footer-logo .dot::before{content:'';position:absolute;inset:-5px;border-radius:50%;background:radial-gradient(circle,var(--star),transparent 70%);opacity:.6;animation:twinkle 3.2s ease-in-out infinite reverse;pointer-events:none;}
@keyframes twinkle{0%,100%{transform:scale(1);opacity:1;}50%{transform:scale(.7);opacity:.7;}}
/* 居中展开的渐变下划线 + 当前页高亮 */
.nav-links a{position:relative;padding:6px 0;}
.nav-links a::after{content:'';position:absolute;left:50%;right:50%;bottom:0;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--accent),var(--cool));transition:left .35s var(--ease-01),right .35s var(--ease-01);}
.nav-links a:hover::after,.nav-links .current-menu-item>a::after,.nav-links .current_page_item>a::after{left:0;right:0;}
.nav-links .current-menu-item>a,.nav-links .current_page_item>a{color:var(--text);}
.nav.on-dark .nav-links .current-menu-item>a,.nav.on-dark .nav-links .current_page_item>a{color:#fff;}

/* 页脚：暮色顶线 + 星点 + 品牌 */
.footer{position:relative;overflow:hidden;padding:64px 48px 40px;border-top:0;}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;z-index:2;background:linear-gradient(90deg,var(--accent),var(--cool),var(--star),var(--cool),var(--accent));background-size:200% 100%;animation:auroraLine 10s linear infinite;}
.footer-stars{position:absolute;top:0;left:0;right:0;height:130px;z-index:0;pointer-events:none;opacity:.5;}
.footer-inner{position:relative;z-index:1;}
.footer-top{margin-bottom:28px;align-items:flex-start;}
.footer-brand{max-width:440px;}
.footer-tagline{margin-top:14px;color:var(--text-soft);font-size:13px;letter-spacing:.5px;line-height:1.9;}
.footer-nav{padding-top:6px;}
.footer-nav a{position:relative;font-size:12px;transition:color .4s;}
.footer-nav a::after{content:'';position:absolute;left:50%;right:50%;bottom:-5px;height:2px;background:linear-gradient(90deg,var(--accent),var(--cool));transition:left .35s var(--ease-01),right .35s var(--ease-01);}
.footer-nav a:hover::after{left:0;right:0;}
/* 渐变分隔线（替代 footer-bottom 死线） */
.footer-divider{height:1px;background:linear-gradient(90deg,transparent,var(--line) 12%,var(--line) 88%,transparent);margin:8px 0 24px;}
.footer-bottom{border-top:0;padding-top:0;}
/* 星形胶囊社交按钮 */
.footer-social{display:flex;gap:10px;flex-wrap:wrap;}
.footer-social a{margin:0;display:inline-flex;align-items:center;gap:6px;font-size:10px;letter-spacing:1.5px;font-weight:700;padding:8px 15px;border:1px solid var(--line);border-radius:30px;background:var(--bg);transition:all .4s var(--ease-01);}
.footer-social a::before{content:'\2726';font-size:9px;color:var(--cool);transition:color .4s;}
.footer-social a:hover{color:#fff;border-color:transparent;background:linear-gradient(90deg,var(--accent),var(--cool));box-shadow:0 6px 18px rgba(79,134,198,.35),0 0 16px rgba(191,234,240,.4);transform:translateY(-2px);}
.footer-social a:hover::before{color:#fff;}

/* 回到顶部 彗星按钮 */
.to-top{position:fixed;right:26px;bottom:96px;z-index:119;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;background:rgba(245,250,249,.9);backdrop-filter:blur(8px);box-shadow:0 8px 24px rgba(44,58,66,.18),0 0 0 1px var(--line);color:var(--text);font-size:16px;display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .4s,transform .4s,box-shadow .4s,color .4s;}
.to-top.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.to-top:hover{box-shadow:0 10px 28px rgba(79,134,198,.4),0 0 18px rgba(191,234,240,.6),0 0 0 1px transparent;color:var(--accent-deep);}
.to-top::after{content:'';position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:2px;height:14px;background:linear-gradient(to top,var(--star),transparent);opacity:0;transition:opacity .4s;}
.to-top:hover::after{opacity:1;}

/* ============ 页眉 / 页脚舞台化升级 ============ */
.nav{height:76px;}
.nav .nav-inner{gap:24px;}
.nav-right{display:flex;align-items:center;gap:26px;}
.nav-logo{
  min-width:0;text-shadow:0 8px 28px rgba(21,39,63,.08);
  transition:letter-spacing .35s var(--ease-01),transform .35s var(--ease-01);
}
.nav-logo:hover{letter-spacing:2px;transform:translateY(-1px);}
.nav-logo::after{
  content:'BYORU';font-family:'Inter',sans-serif;font-size:9px;letter-spacing:2.5px;
  color:var(--text-faint);font-weight:800;margin-left:4px;
}
.nav.on-dark .nav-logo::after{color:rgba(244,238,246,.58);}
.nav-links{gap:24px;}
.nav-links a{
  font-size:11px;letter-spacing:2.2px;text-transform:uppercase;
  text-shadow:0 8px 24px rgba(21,39,63,.08);
}
.nav-toggle{
  display:inline-flex;align-items:center;gap:12px;min-width:94px;height:40px;
  border:1px solid rgba(94,114,122,.28);border-radius:999px;padding:0 14px;
  background:rgba(245,250,249,.62);backdrop-filter:blur(14px);
  color:var(--text);cursor:pointer;position:relative;overflow:hidden;
  transition:transform .35s var(--ease-01),border-color .35s,background .35s,box-shadow .35s;
}
.nav-toggle::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(110deg,transparent,rgba(191,234,240,.34),rgba(63,181,160,.28),transparent);
  transform:translateX(-115%);transition:transform .6s var(--ease-02);pointer-events:none;
}
.nav-toggle:hover::before,.nav-toggle.active::before{transform:translateX(115%);}
.nav-toggle:hover,.nav-toggle.active{
  transform:translateY(-2px);border-color:rgba(191,234,240,.75);
  box-shadow:0 12px 28px rgba(21,39,63,.14),0 0 18px rgba(191,234,240,.42);
}
.nav.on-dark .nav-toggle{
  color:#EAF6F4;background:rgba(244,238,246,.1);border-color:rgba(244,238,246,.34);
}
.nav.on-dark.scrolled .nav-toggle{
  color:var(--text);background:rgba(245,250,249,.78);border-color:rgba(94,114,122,.28);
}
.nav-toggle-text{
  width:auto;height:auto;background:transparent;display:block;
  font-size:10px;letter-spacing:2px;font-weight:800;line-height:1;
}
.nav-toggle-lines{position:relative;width:22px;height:12px;display:block;background:transparent;}
.nav-toggle-lines i{
  position:absolute;right:0;width:22px;height:2px;border-radius:2px;
  background:currentColor;transition:top .35s var(--ease-01),transform .35s var(--ease-01),width .35s;
}
.nav-toggle-lines i:first-child{top:1px;}
.nav-toggle-lines i:last-child{top:9px;width:14px;}
.nav-toggle:hover .nav-toggle-lines i:last-child{width:22px;}
.nav-toggle.active .nav-toggle-lines i:first-child{top:5px;transform:rotate(35deg);}
.nav-toggle.active .nav-toggle-lines i:last-child{top:5px;width:22px;transform:rotate(-35deg);}

.nav-panel-lock{overflow:hidden;}
.nav-panel{
  position:fixed;inset:0;z-index:999;display:grid;place-items:center;
  padding:30px;opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .45s var(--ease-02),visibility .45s;
}
.nav-panel.open{opacity:1;visibility:visible;pointer-events:auto;}
.nav-panel-bg{
  position:absolute;inset:0;background:
    radial-gradient(circle at 16% 18%,rgba(191,234,240,.34),transparent 30%),
    radial-gradient(circle at 84% 76%,rgba(63,181,160,.32),transparent 34%),
    linear-gradient(150deg,rgba(21,39,63,.97),rgba(74,63,119,.96) 48%,rgba(201,126,114,.94));
}
.nav-panel-bg::before{
  content:'';position:absolute;inset:0;opacity:.45;
  background-image:
    linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:54px 54px;
  mask-image:radial-gradient(ellipse at center,#000,transparent 78%);
}
.nav-panel-inner{
  position:relative;width:min(1100px,100%);min-height:min(720px,88vh);
  display:flex;flex-direction:column;justify-content:space-between;
  border:1px solid rgba(244,238,246,.22);border-radius:8px;
  background:rgba(245,250,249,.08);backdrop-filter:blur(22px);
  box-shadow:0 40px 120px rgba(20,18,48,.35),inset 0 1px 0 rgba(255,255,255,.2);
  overflow:hidden;transform:translateY(24px) scale(.985);
  transition:transform .55s var(--ease-02);
}
.nav-panel.open .nav-panel-inner{transform:translateY(0) scale(1);}
.nav-panel-inner::before{
  content:'';position:absolute;inset:-1px;pointer-events:none;
  background:linear-gradient(110deg,transparent 25%,rgba(191,234,240,.22),transparent 52%,rgba(63,181,160,.18),transparent 76%);
  transform:translateX(-60%);animation:panelShine 7s linear infinite;
}
@keyframes panelShine{to{transform:translateX(60%);}}
.nav-panel-head,.nav-panel-foot{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:20px;padding:28px 32px;color:#EAF6F4;
}
.nav-panel-logo{display:inline-flex;align-items:center;gap:10px;font-family:'Noto Serif SC',serif;font-weight:800;letter-spacing:1px;}
.nav-panel-logo span{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--star);}
.nav-panel-close{
  border:1px solid rgba(244,238,246,.26);background:rgba(255,255,255,.08);color:#EAF6F4;
  border-radius:999px;padding:10px 18px;font-size:10px;letter-spacing:2px;font-weight:800;
  cursor:pointer;transition:background .35s,transform .35s var(--ease-01);
}
.nav-panel-close:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);}
.nav-panel-main{
  position:relative;z-index:2;display:grid;grid-template-columns:minmax(260px,.85fr) 1fr;
  align-items:end;gap:42px;padding:40px 70px 54px;
}
.nav-panel-title{color:#EAF6F4;text-transform:uppercase;}
.nav-panel-title span{
  display:block;font-size:12px;letter-spacing:5px;font-weight:800;color:var(--star);margin-bottom:16px;
}
.nav-panel-title strong{
  display:block;font-size:clamp(52px,8vw,112px);letter-spacing:0;line-height:.88;
  font-family:'Inter',sans-serif;font-weight:800;text-shadow:0 18px 54px rgba(20,18,48,.35);
}
.nav-panel-links{list-style:none;margin:0;padding:0;display:grid;gap:12px;counter-reset:navPanel;}
.nav-panel-links li{list-style:none;counter-increment:navPanel;}
.nav-panel-links a{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
  color:#EAF6F4;font-size:clamp(26px,4.5vw,58px);line-height:1;font-weight:800;
  letter-spacing:0;text-transform:uppercase;padding:14px 0 16px;border-bottom:1px solid rgba(244,238,246,.18);
  transition:color .35s,transform .35s var(--ease-01),padding-left .35s var(--ease-01);
}
.nav-panel-links a::before{
  content:counter(navPanel, decimal-leading-zero);font-size:11px;letter-spacing:2px;
  color:rgba(244,238,246,.52);font-weight:800;min-width:36px;
}
.nav-panel-links a::after{
  content:'→';font-size:22px;color:var(--star);opacity:0;transform:translateX(-12px);
  transition:opacity .35s,transform .35s var(--ease-01);
}
.nav-panel-links a:hover{
  color:var(--star);padding-left:14px;transform:translateX(4px);
}
.nav-panel-links a:hover::after{opacity:1;transform:translateX(0);}
.nav-panel-foot{
  border-top:1px solid rgba(244,238,246,.16);font-size:11px;letter-spacing:2px;
  text-transform:uppercase;color:rgba(244,238,246,.72);
}

.footer{background:linear-gradient(180deg,var(--card),#F6F2EB);padding-top:76px;}
.footer-glow{
  position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(circle at 12% 12%,rgba(191,234,240,.38),transparent 28%),
    radial-gradient(circle at 82% 22%,rgba(63,181,160,.28),transparent 30%);
  opacity:.7;
}
.footer-signature{
  position:relative;display:flex;gap:36px;white-space:nowrap;overflow:hidden;
  padding-bottom:32px;margin-bottom:28px;border-bottom:1px solid rgba(94,114,122,.16);
  color:rgba(44,58,66,.08);font-size:clamp(58px,11vw,142px);line-height:.8;
  font-family:'Noto Serif SC',serif;font-weight:800;letter-spacing:4px;
}
.footer-signature span{flex:0 0 auto;animation:footerSignature 18s linear infinite;}
.footer-signature span:nth-child(2){color:rgba(79,134,198,.08);}
@keyframes footerSignature{to{transform:translateX(calc(-100% - 36px));}}
.footer-top{
  display:grid;grid-template-columns:minmax(260px,1.2fr) minmax(220px,.8fr) auto;
  align-items:start;gap:36px;
}
.footer-logo{font-size:30px;}
.footer-brief{
  color:var(--text);padding:18px 20px;border-left:2px solid var(--accent);
  background:rgba(245,250,249,.48);border-radius:8px;
}
.footer-brief-kicker{
  display:block;color:var(--accent-deep);font-size:10px;letter-spacing:3px;font-weight:800;margin-bottom:10px;
}
.footer-brief strong{
  display:block;font-size:18px;line-height:1.55;font-family:'Noto Serif SC',serif;font-weight:700;
}
.footer-nav{
  display:grid;grid-template-columns:repeat(2,minmax(90px,auto));gap:14px 24px;justify-content:end;
}
.footer-bottom{position:relative;}
.footer-copy{max-width:560px;line-height:1.8;}

/* ============ 页眉 / 页脚比例收敛 ============ */
.nav{height:64px;padding-left:40px;padding-right:40px;}
.nav-right{gap:18px;}
.nav-logo{font-size:16px;letter-spacing:.6px;}
.nav-logo:hover{letter-spacing:1.2px;}
.nav-logo::after{font-size:8px;letter-spacing:1.8px;margin-left:2px;}
.nav-links{gap:20px;}
.nav-links a{font-size:10px;letter-spacing:1.7px;padding:5px 0;}
.nav-toggle{
  min-width:78px;height:34px;gap:9px;padding:0 12px;
  background:rgba(245,250,249,.54);box-shadow:none;
}
.nav-toggle-text{font-size:9px;letter-spacing:1.5px;}
.nav-toggle-lines{width:18px;height:10px;}
.nav-toggle-lines i{width:18px;height:1.5px;}
.nav-toggle-lines i:first-child{top:1px;}
.nav-toggle-lines i:last-child{top:8px;width:12px;}
.nav-toggle:hover .nav-toggle-lines i:last-child{width:18px;}
.nav-toggle.active .nav-toggle-lines i:first-child,
.nav-toggle.active .nav-toggle-lines i:last-child{top:4px;width:18px;}

.nav-panel{padding:36px;}
.nav-panel-inner{
  width:min(920px,100%);min-height:min(560px,82vh);
  border-radius:8px;box-shadow:0 28px 80px rgba(20,18,48,.28),inset 0 1px 0 rgba(255,255,255,.18);
}
.nav-panel-head,.nav-panel-foot{padding:22px 26px;}
.nav-panel-logo{font-size:15px;}
.nav-panel-close{padding:8px 14px;font-size:9px;letter-spacing:1.6px;}
.nav-panel-main{
  grid-template-columns:minmax(190px,.72fr) 1fr;
  gap:30px;padding:26px 48px 38px;
}
.nav-panel-title span{font-size:10px;letter-spacing:3.5px;margin-bottom:12px;}
.nav-panel-title strong{font-size:clamp(34px,5.4vw,68px);line-height:.92;}
.nav-panel-links{gap:4px;}
.nav-panel-links a{
  font-size:clamp(20px,2.9vw,36px);font-weight:700;
  padding:10px 0 12px;gap:12px;
}
.nav-panel-links a::before{font-size:9px;letter-spacing:1.5px;min-width:30px;}
.nav-panel-links a::after{font-size:17px;}
.nav-panel-foot{font-size:9px;letter-spacing:1.5px;}

.footer{padding:52px 40px 34px;}
.footer-stars{height:96px;opacity:.38;}
.footer-signature{
  font-size:clamp(34px,6.6vw,86px);letter-spacing:1.5px;
  padding-bottom:20px;margin-bottom:24px;color:rgba(44,58,66,.065);
}
.footer-top{
  grid-template-columns:minmax(240px,1.05fr) minmax(190px,.7fr) auto;
  gap:26px;margin-bottom:24px;
}
.footer-logo{font-size:24px;}
.footer-logo .dot{width:8px;height:8px;}
.footer-tagline{margin-top:10px;font-size:12px;line-height:1.75;}
.footer-brief{padding:14px 16px;border-left-width:2px;}
.footer-brief-kicker{font-size:9px;letter-spacing:2.4px;margin-bottom:7px;}
.footer-brief strong{font-size:15px;line-height:1.55;}
.footer-nav{gap:10px 20px;}
.footer-nav a{font-size:10px;letter-spacing:1.3px;}
.footer-divider{margin:2px 0 20px;}
.footer-copy{font-size:9px;}
.footer-social a{font-size:9px;letter-spacing:1.2px;padding:7px 12px;}
.to-top{width:40px;height:40px;right:22px;bottom:84px;}