/* ============================================================
 * jecorol-assets/base.css —— 全站公共样式（统一重构 2026-08-20）
 * 含：Reset & Base / 设计令牌 :root（四页变量并集）/
 *      子页公共导航 Navigation + 移动端展开 / Footer + 移动端覆盖 / 通用动画
 * 各页 <head> 引入：<link rel="stylesheet" href="jecorol-assets/base.css">
 * ============================================================ */

/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
/* 锚点滚动补偿：fixed 导航 72px，跨页面 hash 跳转时目标不被遮挡；同时启用平滑滚动 */
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
/* 所有带 id 的 section 跳转补偿 fixed 导航遮挡（覆盖站内 / 跨页面锚点） */
section[id],.snap-section[id]{scroll-margin-top:var(--nav-h)}
body{
  font-family:"PingFang SC","Noto Sans SC","Microsoft YaHei","Helvetica Neue",system-ui,-apple-system,sans-serif;
  background:var(--bg-deep);color:var(--text);line-height:var(--lh-base);overflow-x:hidden;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  cursor:default;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ===== Variables (设计令牌 · 四页变量并集，值以 about 为基准统一) ===== */
:root{
  --bg-deep:#0A1F2E;
  --bg-mid:#0F2B3D;
  --bg-card:rgba(255,255,255,.04);
  --gold:#C9A96E;
  --gold-dim:rgba(201,169,110,.3);
  --gold-light:rgba(201,169,110,.6);
  --text:#E8E0D3;
  --text-dim:rgba(232,224,211,.6);
  --text-muted:rgba(232,224,211,.4);
  --border:rgba(255,255,255,.08);
  --nav-h:72px;
  --content-max:1200px;
  /* 内容水平对齐基准：导航 / 页面正文 / 底部三列统一从此线起，保证全站左右对齐 */
  --content-pad-x:48px;
  --overlay:rgba(8,22,34,.92);
  --scrim:rgba(8,22,34,.8);     /* 首页视频遮罩：80% 黑（藏青色温），视频透 20%，文字靠 text-shadow 兜底；用户 8/21 要求加深 */
  --fs-hero-title:clamp(2rem,3.5vw + 1rem,3.5rem);
  --fs-hero-sub:clamp(0.75rem,1vw + 0.4rem,0.95rem);
  --fs-hero-desc:clamp(0.875rem,1.2vw + 0.4rem,1.125rem);
  --fs-section-title:clamp(1.625rem,2.5vw + 0.6rem,2.5rem);
  --fs-section-sub:clamp(0.875rem,1.1vw + 0.4rem,1.125rem);
  --fs-body:clamp(0.875rem,0.8vw + 0.5rem,1rem);
  --fs-body-lg:clamp(1rem,1vw + 0.5rem,1.2rem);
  --fs-body-sm:clamp(0.75rem,0.65vw + 0.4rem,0.85rem);
  --fs-nav:clamp(0.95rem,0.55vw + 0.7rem,1.05rem);
  --fs-card-title:clamp(0.95rem,0.7vw + 0.6rem,1.1rem);
  --fs-card-desc:clamp(0.75rem,0.55vw + 0.45rem,0.85rem);
  --fs-cta:clamp(0.8rem,0.55vw + 0.5rem,0.95rem);
  --fs-quote:clamp(1.25rem,2vw + 0.8rem,2rem);
  --fs-timeline-year:clamp(1.5rem,2.5vw + 0.5rem,2.5rem);
  --fs-footer-title:clamp(0.75rem,0.45vw + 0.45rem,0.85rem);
  --fs-footer-text:clamp(0.7rem,0.4vw + 0.45rem,0.8rem);
  --fs-footer-copy:clamp(0.65rem,0.35vw + 0.4rem,0.75rem);
  --lh-tight:1.2;
  --lh-base:1.5;
  --lh-relaxed:1.75;
  --lh-loose:2.0;
  --ls-wide:0.12em;
  --ls-normal:0.06em;
  --ls-tight:0.02em;
  --fs-product-title:clamp(2rem,3.5vw + 0.5rem,3.5rem);
  --fs-product-nickname:clamp(0.75rem,0.8vw + 0.35rem,0.95rem);
  --fs-product-desc:clamp(0.875rem,1vw + 0.4rem,1.125rem);
  --fs-hero-story:clamp(0.75rem,0.9vw + 0.35rem,0.9rem);
  --fs-year:clamp(2.5rem,4vw + 0.5rem,4rem);
}

/* ===== Navigation (子页公共导航 · includes.js 注入) ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .4s ease,border-color .4s ease,backdrop-filter .4s ease;
}
.nav.scrolled{
  background:rgba(0,0,0,.5);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.1);
}
.nav-inner{
  position:relative;
  max-width:var(--content-max);width:100%;height:100%;
  margin:0 auto;
  padding:0 var(--content-pad-x);
  display:flex;align-items:center;justify-content:space-between;
}
.nav-logo{display:flex;flex-direction:column;line-height:1.06;z-index:2}
.nav-logo-cn{font-size:22px;font-weight:700;letter-spacing:.1em;color:var(--gold)}
.nav-logo-en{font-size:10px;letter-spacing:.34em;color:var(--text-dim);margin-top:3px;padding-left:1px}
.nav-links-wrap{flex:1;display:flex;justify-content:center}
.nav-links{display:flex;gap:40px;list-style:none;position:relative}
.nav-links li{position:relative}
.nav-links a{
  font-size:var(--fs-nav);letter-spacing:var(--ls-wide);color:var(--text-dim);
  transition:color .35s;text-transform:uppercase;position:relative;display:block;padding:4px 0;
}
.nav-links a:hover,.nav-links a.active{color:var(--gold)}

/* Nav CTA button — 描边风格，融入暗调不抢视觉 */
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:7px 20px;font-size:var(--fs-body-sm);font-weight:500;
  letter-spacing:var(--ls-normal);color:var(--gold);
  background:transparent;border:1px solid rgba(201,169,110,.45);
  border-radius:4px;transition:all .3s ease;white-space:nowrap;z-index:2;
}
.nav-cta:hover{
  background:rgba(201,169,110,.12);border-color:var(--gold);
}

/* Mobile nav toggle */
.nav-mobile-toggle{
  display:none;background:none;border:none;cursor:pointer;z-index:2;padding:8px;
}
.nav-mobile-toggle svg{display:block}
.nav-mobile-toggle .line{fill:none;stroke:var(--text);stroke-width:2;transition:transform .3s,opacity .3s;transform-origin:center}
.nav-mobile-open .nav-mobile-toggle .line{stroke:var(--gold)}

/* ===== 移动端导航菜单（公共导航 includes.js 展开样式）===== */
@media (max-width:767px){
  :root{--content-pad-x:24px}
  .nav-inner{padding:0 var(--content-pad-x)}
  .nav-links{display:none}
  .nav-links-wrap{display:none}
  .nav-cta{display:none}
  .nav-mobile-toggle{display:block;position:absolute;right:20px;top:50%;transform:translateY(-50%)}  /* 移动端：切换按钮(三杠/叉)绝对定位钉在右侧，脱离 flex 流，展开菜单后仍稳居右侧而非被 flex:1 的导航包裹层挤到 logo 旁 */
  .nav-mobile-open .nav-links-wrap{display:flex;flex-direction:column;transform:none;position:static}
  .nav-mobile-open .nav-links{display:flex;flex-direction:column;position:fixed;top:var(--nav-h);left:0;right:0;transform:none;background:rgba(8,22,33,.98);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);padding:8px 0 18px;box-shadow:0 24px 48px rgba(0,0,0,.45);border-bottom:1px solid rgba(255,255,255,.08);animation:navDrop .28s cubic-bezier(.16,1,.3,1)}
  @keyframes navDrop{from{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:translateY(0)}}
  .nav-mobile-open .nav-links li{width:100%}
  .nav-mobile-open .nav-links a{display:block;width:100%;text-align:center;font-size:clamp(1rem,2.5vw,1.1rem);font-weight:300;letter-spacing:var(--ls-wide);padding:17px 24px;color:var(--text);border-bottom:1px solid rgba(255,255,255,.05)}
  .nav-mobile-open .nav-links a:hover,.nav-mobile-open .nav-links a.active{color:var(--gold);background:rgba(201,169,110,.08)}
}

/* ===== Footer (公共组件 partials/footer.html 所需样式) ===== */
.footer{position:relative;background:rgba(0,0,0,.95);padding:clamp(36px,5vw,56px) clamp(28px,5vw,60px) clamp(20px,3vw,28px);text-align:left}
.footer-aurora{position:absolute;bottom:0;left:0;right:0;height:180px;pointer-events:none;overflow:hidden;z-index:1;opacity:.4}
.footer-aurora::before{content:"";position:absolute;left:-20%;right:-20%;bottom:-40%;top:-20%;background:radial-gradient(ellipse 50% 70% at 15% 60%,rgba(139,92,246,.3) 0,transparent 50%),radial-gradient(ellipse 55% 75% at 48% 65%,rgba(6,182,212,.25) 0,transparent 55%),radial-gradient(ellipse 48% 65% at 80% 58%,rgba(217,70,239,.25) 0,transparent 50%);filter:blur(12px);animation:auroraBreath 9s ease-in-out infinite;animation-delay:-4s}
@keyframes auroraBreath{0%{transform:translateX(-5%) scaleY(1);opacity:.95}25%{transform:translateX(3%) scaleY(1.15);opacity:.8}50%{transform:translateX(8%) scaleY(.9);opacity:1}75%{transform:translateX(-2%) scaleY(1.1);opacity:.75}100%{transform:translateX(-5%) scaleY(1);opacity:.95}}
.footer-inner{max-width:var(--content-max);margin:0 auto;padding:0 var(--content-pad-x);display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;align-items:start;position:relative;z-index:2}
.footer-logo{display:flex;flex-direction:column;line-height:1.1;margin-bottom:16px}
.footer-logo-cn{font-size:22px;font-weight:700;letter-spacing:.1em;color:var(--gold)}
.footer-logo-en{font-size:10px;letter-spacing:.34em;color:var(--text-dim);margin-top:4px}
.footer-desc{font-size:var(--fs-footer-text);color:var(--text-muted);line-height:var(--lh-relaxed);margin-bottom:22px;max-width:300px}
.footer-social{display:flex;gap:14px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.15);color:#fff;transition:all .35s cubic-bezier(.16,1,.3,1)}
.footer-social a svg{width:20px;height:20px;fill:currentColor;transition:transform .35s}
.footer-social a:hover{border-color:currentColor;transform:translateY(-3px)}
.footer-social a:hover svg{transform:scale(1.15)}
.footer-social .wx:hover{color:#07C160}.footer-social .wb:hover{color:#E6162D}.footer-social .dy:hover{color:#00F2EA}.footer-social .xhs:hover{color:#FF2442}
.footer-col h4{font-size:var(--fs-footer-title);color:var(--text);font-weight:500;letter-spacing:.08em;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:var(--fs-footer-text);color:var(--text-dim);transition:color .3s}
.footer-links a:hover{color:var(--gold)}
.qr-img{width:128px;height:128px;border-radius:8px;opacity:.88;transition:opacity .3s}
.qr-img:hover{opacity:1}
/* 小红书二维码板块整体右对齐 */
.footer-qr{display:flex;flex-direction:column;align-items:flex-end;justify-content:flex-start}
.footer-bottom{text-align:center;margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);position:relative;z-index:2}
.footer-copy{font-size:var(--fs-footer-copy);color:var(--text-muted);line-height:var(--lh-relaxed)}

/* ===== Footer Mobile Overrides (必须位于 .footer-inner 基础定义之后) ===== */
@media (max-width:767px){
  .footer-inner{grid-template-columns:1fr 1fr;gap:24px 16px}
  .footer-brand{grid-column:1 / -1;align-items:center;text-align:center}
  .footer-desc{text-align:center;margin:0 auto 16px;max-width:100%}
  .footer-social{justify-content:center}
  /* 快速导航链接横向排列，紧凑标签式 */
  .footer-links{display:flex;flex-direction:row;flex-wrap:wrap;gap:6px}
  .footer-links a{font-size:.78rem;padding:4px 10px;border:1px solid rgba(255,255,255,.07);border-radius:3px;color:var(--text-dim);transition:all .25s}
  .footer-links a:hover{color:var(--gold);border-color:rgba(201,169,110,.2);background:rgba(201,169,110,.04)}
  .footer-col h4{margin-bottom:8px;font-size:.85rem;text-align:center}
  .footer-qr{align-items:center;text-align:center}
  .qr-img{width:120px;height:120px}
}

/* ===== Animations (通用进场动画 reveal/fadeInUp) ===== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(28px)}
  to{opacity:1;transform:translateY(0)}
}
.reveal{opacity:0;transform:translateY(40px);transition:opacity .85s cubic-bezier(.16,1,.3,1),transform .85s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}
.reveal-delay-4{transition-delay:.4s}

/* ===== Tablet Navigation (768–1024px · iPad 横屏) =====
 * 桌面样式 5 个导航词 + gap:48px + letter-spacing:.12em 在 iPad 横向会挤爆（换成两行）。
 * 平板断点：缩小间距、字距、字号，避免换行，保持单行排版。
 */
@media (min-width:768px) and (max-width:1024px){
  :root{--content-pad-x:28px}
  .nav-inner{padding:0 var(--content-pad-x)}
  .nav-logo-cn{font-size:18px}
  .nav-logo-en{font-size:9px;letter-spacing:.28em}
  .nav-links-wrap{position:relative;left:auto;top:auto;transform:none;margin-left:auto}
  .nav-links{gap:28px}
  .nav-links a{font-size:.92rem;letter-spacing:.06em;padding:4px 0}
}

/* ===== 在线咨询 / 产品询盘 弹窗（js/inquiry.js 注入并控制，全站共享）=====
 * 机制：任何带 data-inquiry-open 的元素点击即弹窗；CSS 全站统一由本文件提供，
 * 不再逐页内联（原 products.html 内联版本已移除，避免多份冗余）。 */
.iq-overlay{position:fixed;inset:0;background:rgba(5,14,22,.7);backdrop-filter:blur(6px);z-index:2000;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
.iq-overlay.open{opacity:1;visibility:visible}
.iq-modal{position:fixed;left:50%;top:50%;transform:translate(-50%,-46%) scale(.96);width:min(460px,92vw);max-height:90vh;overflow:auto;background:#0E2536;border:1px solid var(--border);border-radius:18px;z-index:2001;padding:34px 30px;opacity:0;visibility:hidden;transition:opacity .3s,transform .3s,visibility .3s;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.iq-modal.open{opacity:1;visibility:visible;transform:translate(-50%,-50%) scale(1)}
.iq-close{position:absolute;top:16px;right:18px;background:none;border:none;color:var(--text-dim);font-size:24px;line-height:1;transition:color .3s}
.iq-close:hover{color:var(--gold)}
.iq-modal h3{font-size:1.3rem;font-weight:600;margin-bottom:6px}
.iq-product{font-size:.85rem;color:var(--gold);margin-bottom:20px;min-height:1em}
.iq-field{margin-bottom:16px}
.iq-field label{display:block;font-size:.82rem;color:var(--text-dim);margin-bottom:7px;letter-spacing:.03em}
.iq-field input,.iq-field textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:10px;padding:12px 14px;color:var(--text);font-size:.92rem;font-family:inherit;transition:border-color .3s}
.iq-field input:focus,.iq-field textarea:focus{outline:none;border-color:var(--gold)}
.iq-field textarea{resize:vertical;min-height:88px}
.iq-submit{width:100%;margin-top:8px;font-size:1rem;letter-spacing:.06em;color:#0A1F2E;background:linear-gradient(135deg,var(--gold),#e3c894);border:none;border-radius:999px;padding:14px;font-weight:600;transition:transform .25s,box-shadow .25s}
.iq-submit:hover{transform:translateY(-2px)}
.iq-submit:disabled{opacity:.6;cursor:default;transform:none}
.iq-hint{font-size:.74rem;color:var(--text-muted);margin-top:12px;text-align:center;line-height:1.6}