/* 100种上海常见植物 — 博物馆自然档案风 */
:root{
  --paper:#F7F3E9; --paper-2:#FDFBF5; --line:#DED4BE;
  --ink:#2A2620; --ink-2:#5A5348; --ink-3:#8A8072;
  --green:#2C4A3B; --green-2:#40684F; --ochre:#A8622D; --ochre-2:#C8843F;
  --gold:#C2882E; --rose:#B85C6E; --warn:#C25A3F;
  --shadow:0 2px 10px rgba(60,48,28,.07);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  background:var(--paper); color:var(--ink); font-family:var(--sans);
  line-height:1.8; -webkit-font-smoothing:antialiased;
  background-image:linear-gradient(rgba(0,0,0,.014) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(0,0,0,.014) 1px,transparent 1px);
  background-size:26px 26px;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;background:rgba(247,243,233,.93);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.topbar .wrap{display:flex;align-items:center;gap:16px;height:58px}
.brand{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--green);letter-spacing:.04em}
.brand small{font-family:var(--sans);font-weight:400;color:var(--ink-3);font-size:12px;margin-left:8px;letter-spacing:.1em}
.topbar .spacer{flex:1}
/* 图鉴 / 科普馆 — 右侧分段控件 */
.kb-nav{display:flex;align-items:center;gap:3px;padding:4px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:22px}
.kb-nav a{padding:6px 18px;border-radius:18px;font-size:13px;
  color:var(--ink-2);letter-spacing:.06em;transition:.2s}
.kb-nav a:hover{color:var(--green);background:rgba(44,74,59,.06)}
.kb-nav a.on{background:var(--green);color:#fff;font-weight:600}
.kb-nav a.on:hover{color:#fff}
@media(max-width:560px){.brand{font-size:15px}.brand small{display:none}.kb-nav a{padding:6px 12px}}

/* ---------- 主页 ---------- */
.hero-home{padding:56px 0 34px;text-align:left;border-bottom:1px solid var(--line)}
.hero-flex{display:flex;align-items:center;gap:44px}
.hero-text{flex:1;min-width:0}
.hero-img{
  flex-shrink:0;width:280px;max-width:34%;
  border:1px solid var(--line);border-radius:6px;
  box-shadow:0 10px 30px rgba(60,48,28,.16);object-fit:cover;
}
.hero-home h1{font-family:var(--serif);font-size:clamp(30px,5vw,46px);color:var(--green);letter-spacing:.06em}
.hero-home .sub{margin-top:10px;color:var(--ink-3);font-size:13px;letter-spacing:.22em;text-transform:uppercase}
.hero-home .desc{margin:18px 0 0;max-width:620px;color:var(--ink-2);font-size:15px}
.hero-home .stat{margin-top:22px;display:flex;gap:34px;justify-content:flex-start;flex-wrap:wrap}
.hero-home .stat b{display:block;font-family:var(--serif);font-size:26px;color:var(--ochre)}
.hero-home .stat span{font-size:12px;color:var(--ink-3);letter-spacing:.1em}
@media(max-width:720px){
  .hero-flex{flex-direction:column;align-items:center;gap:26px}
  .hero-home{text-align:center}
  .hero-text{text-align:center}
  .hero-img{width:220px;max-width:60%}
  .hero-home .stat{justify-content:center}
}

.tools{padding:26px 0 8px;display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.search{flex:1;min-width:240px;position:relative}
.search input{
  width:100%;padding:11px 16px 11px 40px;border:1px solid var(--line);border-radius:24px;
  background:var(--paper-2);font-size:14px;font-family:var(--sans);color:var(--ink);outline:none;transition:.2s
}
.search input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(44,74,59,.08)}
.search svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);opacity:.4}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{
  padding:7px 16px;border:1px solid var(--line);border-radius:20px;background:var(--paper-2);
  font-size:13px;color:var(--ink-2);cursor:pointer;transition:.2s;user-select:none
}
.chip:hover{border-color:var(--green-2);color:var(--green)}
.chip.on{background:var(--green);border-color:var(--green);color:#fff}
.chip.chip-star{color:var(--gold);border-color:#E5C988}
.chip.chip-star.on{background:var(--gold);border-color:var(--gold);color:#fff}
.chip.chip-flower{color:var(--rose);border-color:#E7B3BD}
.chip.chip-flower.on{background:var(--rose);border-color:var(--rose);color:#fff}
.chip.chip-env{color:var(--warn);border-color:#E6B49E}
.chip.chip-env.on{background:var(--warn);border-color:var(--warn);color:#fff}
.count{padding:6px 0 18px;font-size:12px;color:var(--ink-3);letter-spacing:.08em}

.grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(196px,1fr));
  gap:20px;padding-bottom:60px
}
.card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:6px;overflow:hidden;
  box-shadow:var(--shadow);transition:transform .22s,box-shadow .22s,border-color .22s;display:block
}
.card:hover{transform:translateY(-4px);box-shadow:0 10px 26px rgba(60,48,28,.14);border-color:var(--green-2)}
.card .ph{position:relative;aspect-ratio:3/4;background:#EFE9DA;overflow:hidden}
.card img{width:100%;height:100%;object-fit:cover;display:block}
.card .no{
  position:absolute;top:8px;left:8px;background:rgba(44,74,59,.88);color:#fff;
  font-size:11px;padding:2px 8px;border-radius:3px;letter-spacing:.08em;font-family:var(--serif)
}
.card .meta{padding:11px 13px 13px}
.card .cn{font-family:var(--serif);font-size:16px;color:var(--ink);font-weight:600}
.card .en{font-size:11px;color:var(--ink-3);letter-spacing:.06em;margin-top:2px}
.card .fam{margin-top:7px;font-size:11px;color:var(--ochre);letter-spacing:.04em}
.empty{padding:70px 0;text-align:center;color:var(--ink-3)}
.card .cb-row{position:absolute;top:8px;right:8px;display:flex;gap:4px}
.card .card-badge{font-size:10px;padding:2px 7px;border-radius:9px;font-weight:600;
  letter-spacing:.04em;line-height:1.4}
.cb-star{background:var(--gold);color:#fff}
.cb-flower{background:var(--rose);color:#fff}
.cb-env{background:var(--warn);color:#fff}

/* ---------- 子页 ---------- */
.hero{padding:52px 0 40px;border-bottom:1px solid var(--line);position:relative}
.hero .tag{
  display:inline-block;background:var(--green);color:#fff;font-size:11px;
  padding:4px 13px;border-radius:3px;letter-spacing:.14em;margin-bottom:16px
}
.hero .tag em{font-style:normal;opacity:.7;margin-right:7px}
.hero h1{font-family:var(--serif);font-size:clamp(38px,7vw,64px);color:var(--green);letter-spacing:.05em;line-height:1.2}
.hero .en{margin-top:8px;font-size:16px;color:var(--ochre);letter-spacing:.16em;font-style:italic}
.hero .fam{margin-top:16px;font-size:13px;color:var(--ink-3);padding-left:13px;border-left:2px solid var(--line)}

section{padding:44px 0;border-bottom:1px solid var(--line)}
.sec-h{display:flex;align-items:center;gap:12px;margin-bottom:22px}
.sec-h i{width:26px;height:1px;background:var(--ochre);display:block}
.sec-h h2{font-family:var(--serif);font-size:19px;color:var(--green);letter-spacing:.1em;font-weight:600}
.sec-h span{font-size:11px;color:var(--ink-3);letter-spacing:.16em;text-transform:uppercase}

.prose{max-width:760px}
.prose p{font-family:var(--serif);font-size:17px;line-height:2.15;color:var(--ink-2);margin-bottom:18px;text-align:justify}
.prose:not(.kb-md) p:first-child::first-letter{
  font-size:52px;float:left;line-height:1;margin:4px 10px 0 0;color:var(--ochre);font-weight:700
}

.figure{text-align:center}
.figure img{
  max-width:100%;width:auto;max-height:88vh;border:1px solid var(--line);
  border-radius:4px;box-shadow:0 6px 24px rgba(60,48,28,.13);background:#fff
}
.figure figcaption{margin-top:14px;font-size:12px;color:var(--ink-3);letter-spacing:.08em}
.organs{margin-top:16px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.organs span{
  font-size:12px;padding:4px 12px;border:1px solid var(--line);
  border-radius:14px;color:var(--ink-2);background:var(--paper-2)
}

.know{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.kbox{
  background:var(--paper-2);border:1px solid var(--line);border-left:3px solid var(--green-2);
  border-radius:5px;padding:19px 21px;box-shadow:var(--shadow)
}
.kbox h3{font-family:var(--serif);font-size:15px;color:var(--green);margin-bottom:9px;letter-spacing:.06em}
.kbox p{font-size:14.5px;color:var(--ink-2);line-height:1.85}
.kbox.wide{grid-column:1/-1}
.kbox.ochre{border-left-color:var(--ochre)}
.kbox.obs{border-left-color:#7A8B4A;background:#F4F5EA}
.myth{display:flex;flex-direction:column;gap:10px;margin-top:4px}
.myth div{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;line-height:1.8}
.myth b{flex-shrink:0;width:21px;height:21px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;color:#fff;margin-top:4px}
.myth .x b{background:#B5523F}
.myth .v b{background:var(--green-2)}
.myth .x{color:var(--ink-3);text-decoration:line-through;text-decoration-color:rgba(181,82,63,.4)}
.myth .v{color:var(--ink)}

/* ---------- 跨页联动徽章 ---------- */
.hero .badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.hero .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;
  border-radius:14px;font-size:12px;letter-spacing:.06em;line-height:1;border:1px solid transparent}
.hero .badge-star{background:#FBF1DC;color:var(--gold);border-color:#E5C988;font-weight:600}
.hero .badge-flower{background:#FAE9EE;color:var(--rose);border-color:#E7B3BD;font-weight:600}
.hero .badge-env{background:#F8E8DD;color:var(--warn);border-color:#E6B49E;font-weight:600}
.hero .badge a{color:inherit;text-decoration:underline;text-underline-offset:2px;
  text-decoration-thickness:1px;text-decoration-color:rgba(0,0,0,.18)}
.env-chip{display:inline-flex;align-items:center;gap:5px;padding:4px 11px;
  border-radius:12px;background:#F8E8DD;color:var(--warn);border:1px solid #E6B49E;
  font-size:12px;cursor:pointer;transition:.2s}
.env-chip:hover{background:#fff;border-color:var(--warn)}
.env-chip b{font-weight:700;margin-right:2px}
.env-chip em{font-style:normal;color:var(--ochre);font-size:11px;margin-left:2px}

/* ---------- 音频条 ---------- */
.audiobar{
  position:fixed;left:50%;transform:translateX(-50%);bottom:22px;z-index:60;
  display:flex;align-items:center;gap:13px;padding:10px 18px 10px 12px;
  background:rgba(44,74,59,.96);border-radius:34px;box-shadow:0 8px 28px rgba(30,45,35,.32);
  backdrop-filter:blur(8px);max-width:calc(100vw - 40px)
}
.audiobar button{
  width:40px;height:40px;border-radius:50%;border:none;background:var(--paper-2);
  color:var(--green);cursor:pointer;display:grid;place-items:center;flex-shrink:0;transition:.2s
}
.audiobar button:hover{background:#fff;transform:scale(1.06)}
.audiobar .info{color:#fff;font-size:12px;letter-spacing:.06em;white-space:nowrap}
.audiobar .info b{display:block;font-size:13px;font-weight:600;margin-bottom:2px}
.audiobar .info span{opacity:.62;font-size:11px}
.audiobar .bar{width:150px;height:4px;background:rgba(255,255,255,.22);border-radius:2px;
  cursor:pointer;position:relative;flex-shrink:0}
.audiobar .bar i{position:absolute;left:0;top:0;height:100%;width:0;background:var(--ochre-2);border-radius:2px}
.audiobar .t{color:rgba(255,255,255,.6);font-size:11px;font-variant-numeric:tabular-nums;flex-shrink:0}
@media(max-width:560px){.audiobar .bar{width:78px}.audiobar .info b{max-width:96px;overflow:hidden;text-overflow:ellipsis}}

/* ---------- 上下页 ---------- */
.pager{display:flex;justify-content:space-between;gap:14px;padding:34px 0 110px}
.pager a{
  flex:1;max-width:290px;padding:15px 19px;border:1px solid var(--line);border-radius:5px;
  background:var(--paper-2);transition:.2s;box-shadow:var(--shadow)
}
.pager a:hover{border-color:var(--green);transform:translateY(-2px)}
.pager a.next{text-align:right;margin-left:auto}
.pager small{display:block;font-size:11px;color:var(--ink-3);letter-spacing:.12em;margin-bottom:4px}
.pager b{font-family:var(--serif);font-size:16px;color:var(--green);font-weight:600}
.pager .void{flex:1;max-width:290px}

footer{padding:26px 0 34px;text-align:center;font-size:12px;color:var(--ink-3);letter-spacing:.06em}