/* ============================================================
   五味源 · 复合香调  —  styles--4.css（统一风格版）
   由原 1920px 绝对定位画布改为流式布局
   ============================================================ */

:root{
  --paper:#f4efe6;--paper-deep:#ece4d3;--card:#fbf7ee;
  --ink:#2b2016;--body:#4a3b2a;--accent:#8B1F2A;--gold:#a8844a;
  --line:#d9cdb6;
  --shadow:0 10px 30px rgba(60,40,20,.18);
  --shadow-hover:0 18px 44px rgba(60,40,20,.32);
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--paper);color:var(--body);
  font-size:14px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{text-decoration:none;color:inherit;}
h2,h3,h4{font-family:"Noto Serif SC",serif;color:var(--ink);font-weight:700;}

/* 导航（同5/6） */
.navbar{position:sticky;top:0;z-index:100;background:rgba(244,239,230,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav-inner{width:1400px;max-width:calc(100% - 48px);margin:0 auto;height:72px;display:flex;align-items:center;justify-content:space-between;}
.logo{display:flex;align-items:center;gap:12px;}
.logo-seal{width:44px;height:44px;border-radius:6px;background:var(--accent);color:var(--paper);font-family:"Noto Serif SC",serif;font-size:24px;font-weight:900;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 10px rgba(139,31,42,.3);}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-text em{font-family:"Noto Serif SC",serif;font-style:normal;font-size:20px;font-weight:900;color:var(--ink);letter-spacing:2px;}
.logo-text small{font-size:10px;letter-spacing:2px;color:var(--gold);margin-top:2px;}
.nav-list{display:flex;list-style:none;gap:8px;}
.nav-item{position:relative;}
.nav-item>a{display:block;padding:10px 18px;font-size:15px;color:var(--ink);letter-spacing:1px;transition:color .25s;}
.nav-item>a:hover{color:var(--accent);}
.nav-item>a .arrow{font-size:10px;margin-left:4px;opacity:.6;}
.nav-item>a.active{color:var(--accent);}
.submenu{position:absolute;top:calc(100% + 8px);left:50%;transform:translateX(-50%) translateY(-12px);min-width:160px;background:var(--card);border:1px solid var(--line);list-style:none;padding:8px 0;box-shadow:0 12px 30px rgba(60,40,20,.15);opacity:0;visibility:hidden;transition:opacity .3s ease, transform .3s ease, visibility .3s;}
.submenu::before{content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%) rotate(45deg);width:10px;height:10px;background:var(--card);border-left:1px solid var(--line);border-top:1px solid var(--line);}
.has-sub:hover .submenu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);}
.submenu li a{display:block;padding:9px 22px;font-size:14px;color:var(--body);transition:all .2s;}
.submenu li a:hover{background:var(--paper-deep);color:var(--accent);padding-left:28px;}
.submenu li a.active{color:var(--accent);font-weight:500;}

/* 画布改为流式 */
.canvas{width:100%;background:var(--paper);}

/* 1 Hero 主视觉 */
.hero{width:100%;overflow:hidden;}
.hero img{width:100%;height:auto;object-fit:cover;}

/* 2 四类香：圆形 + 标签 */
.circles-row{
  width:1400px;max-width:calc(100% - 48px);margin:0 auto;
  padding:70px 0 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:36px;
  text-align:center;
}
.circle{
  width:180px;height:180px;margin:0 auto 14px;border-radius:50%;
  overflow:hidden;box-shadow:var(--shadow);
  transition:box-shadow .35s, transform .35s;
}
.circle img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.circle:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);}
.circle:hover img{transform:scale(1.08);}
.chip{
  display:inline-block;
  background:var(--gold);color:#fff;
  font-size:14px;letter-spacing:3px;
  padding:8px 24px;border-radius:4px;
}

/* 3 经典复合香组拆解 */
.chaijie{
  margin:50px 0;padding:80px 0;
  background:linear-gradient(rgba(58,44,30,.55),rgba(58,44,30,.55)),
    url("img/3/矩形 7.png") center/cover no-repeat;
}
.chaijie-inner{
  width:1400px;max-width:calc(100% - 48px);margin:0 auto;
  display:grid;grid-template-columns:40% 60%;gap:0;align-items:stretch;
}
.chai-box{
  overflow:hidden;box-shadow:0 16px 40px rgba(0,0,0,.4);
}
.chai-box img{width:100%;height:100%;object-fit:cover;}
.chai-text{
  background:var(--card);padding:56px 56px;
  display:flex;flex-direction:column;justify-content:center;
}
.chai-text h3{font-size:36px;margin-bottom:24px;letter-spacing:3px;}
.chai-text p{font-size:14px;line-height:2.1;color:var(--body);margin-bottom:6px;}

/* 4 定向调香 */
.ding{padding:70px 0;background:var(--paper);}
.ding-title{
  text-align:center;font-size:36px;letter-spacing:4px;margin-bottom:50px;
}
.ding-grid{
  width:1400px;max-width:calc(100% - 48px);margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.ding-card{text-align:center;}
.ding-img{
  height:220px;overflow:hidden;
  box-shadow:var(--shadow);transition:box-shadow .35s, transform .35s;
}
.ding-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.ding-card:hover .ding-img{box-shadow:var(--shadow-hover);transform:translateY(-6px);}
.ding-card:hover .ding-img img{transform:scale(1.06);}
.ding-label{
  margin-top:16px;font-size:16px;color:var(--ink);letter-spacing:2px;
  font-family:"Noto Serif SC",serif;
}

/* 5 香调品鉴 */
.pinjian{
  background:var(--paper-deep);padding:80px 0;
}
.pinjian-inner{
  width:1400px;max-width:calc(100% - 48px);margin:0 auto;
  display:grid;grid-template-columns:40% 60%;gap:56px;align-items:center;
}
.pin-img{
  height:340px;overflow:hidden;
  box-shadow:var(--shadow);transition:box-shadow .3s;
}
.pin-img:hover{box-shadow:var(--shadow-hover);}
.pin-img img{width:100%;height:100%;object-fit:cover;}
.pin-title{font-size:36px;margin-bottom:28px;letter-spacing:3px;}
.vcols{display:flex;gap:36px;}
.vcol{
  writing-mode:vertical-rl;text-orientation:upright;
  font-size:16px;line-height:2.2;color:var(--body);letter-spacing:2px;
}

/* Footer */
.foot-tan{background:var(--paper-deep);height:30px;}
.foot-brown{background:var(--ink);}
.foot-copy{
  background:var(--ink);color:#d9c9a8;text-align:center;
  padding:18px 10px;font-size:12px;letter-spacing:1px;
}

@media (max-width:1100px){
  .circles-row,.ding-grid{grid-template-columns:1fr 1fr;}
  .chaijie-inner,.pinjian-inner{grid-template-columns:1fr;}
  .chai-box img{height:300px;}
}
@media (max-width:640px){
  .circles-row,.ding-grid{grid-template-columns:1fr;}
  .vcols{flex-direction:row;flex-wrap:wrap;}
  .vcol{writing-mode:horizontal-tb;text-orientation:horizontal;}
}