/* basp.fund — 以竹代塑ESG主题基金 · 方案A 深绿机构风
   设计令牌：深竹绿 0B2E20 / 墨绿 082418 / 金 C79A3C / 米白 F7F4EC */
:root{
  --green:#0B2E20;--green2:#082418;--green3:#0F3D2C;--green4:#0E2A1D;
  --gold:#C79A3C;--gold-dk:#8a6a1f;--gold-soft:rgba(199,154,60,.35);
  --ivory:#F7F4EC;--cream:#F5F1E8;--ink:#1E2B24;--ink2:#4A564F;--ink3:#7A857E;
  --max:1120px;--v:"20261111e";
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;color:var(--ink);background:#fff;line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
b{font-weight:700}

/* ---------- 头部 ---------- */
.site-head{background:var(--green);position:sticky;top:0;z-index:50;border-bottom:1px solid var(--gold-soft)}
.head-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--gold);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;flex:none}
.brand-t{color:var(--cream);font-size:15px;font-weight:700;display:flex;flex-direction:column;line-height:1.25}
.brand-t i{font-style:normal;font-size:10px;letter-spacing:.18em;color:var(--gold);font-weight:400}
.nav{display:flex;align-items:center;gap:22px}
.nav-link{color:rgba(245,241,232,.75);font-size:14px;padding:4px 0;border-bottom:2px solid transparent}
.nav-link:hover{color:var(--cream)}
.nav-link.on{color:var(--gold);border-bottom-color:var(--gold)}
.nav-lang{border:1px solid var(--gold);border-radius:4px;padding:2px 9px;color:var(--gold);font-size:12px;letter-spacing:.1em}
.nav-pi{color:var(--gold);font-size:14px;border:1px solid var(--gold-soft);border-radius:4px;padding:5px 12px}
.nav-pi:hover{background:rgba(199,154,60,.12)}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--cream);margin:5px 0;border-radius:2px;transition:.2s}
body.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{display:none;background:var(--green2);border-bottom:1px solid var(--gold-soft);padding:8px 24px 16px}
.drawer a{display:block;color:rgba(245,241,232,.85);font-size:15px;padding:11px 0;border-bottom:1px dashed rgba(199,154,60,.18)}
.drawer .drawer-pi{color:var(--gold);font-weight:700}
body.menu-open .drawer{display:block}

/* ---------- Hero ---------- */
.hero{background:var(--green);color:var(--cream);padding:84px 0 64px;border-bottom:1px solid var(--gold-soft);position:relative}
.hero .eyebrow{font-size:13px;letter-spacing:.3em;color:var(--gold);margin-bottom:18px}
.hero h1{font-size:46px;line-height:1.25;font-weight:700;letter-spacing:.02em;margin-bottom:18px;max-width:640px}
.hero .lead{font-size:17px;color:rgba(245,241,232,.72);max-width:560px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;font-size:15px;font-weight:700;padding:11px 28px;border-radius:6px;transition:.15s}
.btn-gold{background:var(--gold);color:var(--green)}
.btn-gold:hover{background:#D9B058}
.btn-ghost{border:1px solid rgba(245,241,232,.4);color:var(--cream)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold)}

/* ---------- 数据条 ---------- */
.datstrip{background:var(--green2);border-bottom:2px solid var(--gold)}
.datstrip .wrap{display:grid;grid-template-columns:repeat(4,1fr);padding:0}
.dat{padding:26px 12px;text-align:center}
.dat+.dat{border-left:1px solid rgba(199,154,60,.25)}
.dat b{display:block;font-size:32px;color:var(--gold);font-weight:700;line-height:1.15}
.dat b i{font-style:normal;font-size:15px;margin-left:2px}
.dat span{display:block;font-size:13px;color:rgba(245,241,232,.55);margin-top:6px;letter-spacing:.06em}

/* ---------- 区块 ---------- */
.sec{padding:72px 0}
.sec-ivory{background:var(--ivory)}
.sec-cap{font-size:13px;letter-spacing:.22em;color:var(--gold-dk);font-weight:700;margin-bottom:8px}
.sec h2{font-size:30px;color:var(--green);font-weight:700;margin-bottom:14px;line-height:1.35}
.sec .sec-lead{color:var(--ink2);max-width:720px;margin-bottom:36px}
.sec-head-c{text-align:center}
.sec-head-c .sec-lead{margin-left:auto;margin-right:auto}
.sec p,.sec li{word-break:break-word}

/* 三位一体 */
.trinity{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.t-card{background:#fff;border:1px solid rgba(11,46,32,.08);border-top:3px solid var(--gold);border-radius:10px;padding:28px 24px}
.t-card .no{font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.14em}
.t-card h3{font-size:20px;color:var(--green);margin:8px 0 10px}
.t-card p{font-size:14.5px;color:var(--ink2)}

/* 五大赛道 */
.tracks{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.trk{border-radius:10px;padding:22px 16px;text-align:center}
.trk b{display:block;font-size:16px;margin-bottom:6px}
.trk span{font-size:12.5px;letter-spacing:.08em}
.trk-core{background:#EAF3DE}
.trk-core b{color:#27500A}.trk-core span{color:#3B6D11}
.trk-growth{background:var(--ivory)}
.trk-growth b{color:#27500A}.trk-growth span{color:var(--gold-dk)}
.trk-carbon{background:var(--green2)}
.trk-carbon b{color:var(--gold)}.trk-carbon span{color:rgba(245,241,232,.6)}

/* 双轮驱动 */
.duo{display:grid;grid-template-columns:1fr 84px 1fr;align-items:stretch;gap:0;margin-top:8px}
.duo-card{background:var(--green);color:var(--cream);border-radius:12px;padding:32px 30px}
.duo-card h3{color:var(--gold);font-size:20px;margin-bottom:10px}
.duo-card p{color:rgba(245,241,232,.75);font-size:14.5px}
.duo-mid{display:flex;align-items:center;justify-content:center}
.duo-mid i{font-style:normal;width:64px;height:64px;border-radius:50%;background:var(--gold);color:var(--green);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700}

/* 通用卡与表格 */
.card{background:#fff;border:1px solid rgba(11,46,32,.08);border-radius:10px;padding:28px}
.facts-table{width:100%;border-collapse:collapse;font-size:15px}
.facts-table th{width:170px;text-align:left;color:var(--ink3);font-weight:400;padding:13px 14px;border-bottom:1px dashed rgba(11,46,32,.14);vertical-align:top;white-space:nowrap}
.facts-table td{color:var(--ink);font-weight:700;padding:13px 14px;border-bottom:1px dashed rgba(11,46,32,.14)}
.facts-table tr:last-child th,.facts-table tr:last-child td{border-bottom:none}

/* ESG 权重条 */
.esg-bar{display:flex;height:52px;border-radius:8px;overflow:hidden;margin:18px 0 12px}
.esg-bar div{display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.esg-e{flex:4;background:var(--green);color:var(--cream)}
.esg-s{flex:3;background:#3E7A5A;color:var(--cream)}
.esg-g{flex:3;background:var(--gold);color:var(--green)}
.esg-note{font-size:14px;color:var(--ink2)}

/* 政策时间线 */
.timeline{border-left:2px solid var(--gold-soft);margin-left:8px;padding-left:26px}
.tl-item{position:relative;padding-bottom:26px}
.tl-item::before{content:"";position:absolute;left:-33px;top:6px;width:12px;height:12px;border-radius:50%;background:var(--gold);border:2px solid var(--ivory)}
.tl-item b{display:block;color:var(--green);font-size:15px}
.tl-item span{font-size:14px;color:var(--ink2)}

/* 联盟结构 */
.org-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.org-blk{background:#fff;border:1px solid rgba(11,46,32,.08);border-radius:10px;padding:22px}
.org-blk h3{color:var(--green);font-size:17px;margin-bottom:8px}
.org-blk p{font-size:14.5px;color:var(--ink2)}

/* 指导单位 */
.org-cards{display:flex;gap:16px;flex-wrap:wrap}
.org-card{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--gold-soft);border-radius:10px;padding:14px 20px}
.org-card img{height:34px;width:auto}
.org-card span{font-size:14.5px;font-weight:700;color:var(--green)}

/* 页脚 */
.site-foot{background:var(--green2);color:var(--cream);border-top:1px solid var(--gold-soft)}
.foot-in{padding:56px 24px 32px}
.foot-brand{display:flex;gap:14px;align-items:flex-start;margin-bottom:26px}
.foot-brand b{font-size:17px;display:block}
.foot-brand p{font-size:13px;color:rgba(245,241,232,.55);margin-top:4px}
.foot-nav{display:flex;gap:22px;flex-wrap:wrap;margin-bottom:30px}
.foot-nav a{font-size:13.5px;color:rgba(245,241,232,.7)}
.foot-nav a:hover{color:var(--gold)}
.foot-orgs{border:1px solid rgba(199,154,60,.22);background:var(--green4);border-radius:10px;padding:22px 24px;margin-bottom:26px}
.foot-orgs-cap{font-size:12px;letter-spacing:.22em;color:var(--gold);margin-bottom:14px;font-weight:700}
.foot-org-cards{display:flex;gap:10px;flex-wrap:wrap}
.foot-org-cards .org-card{padding:12px 14px;gap:8px}
.foot-org-cards .org-card img{height:30px}
.foot-org-cards .org-card img[src*="zethworld"]{height:38px}
.foot-org-cards .org-card span{font-size:13.5px}
.foot-disclaim{border-top:1px solid rgba(199,154,60,.18);padding-top:22px}
.foot-disclaim p{font-size:12.5px;color:rgba(245,241,232,.5);line-height:1.8;word-break:break-word}
.foot-copy{margin-top:12px}

/* ---------- 移动端 ---------- */
@media (max-width:960px){
  body{font-size:15px}
  .nav{display:none}
  .burger{display:block}
  .hero{padding:56px 0 44px}
  .hero h1{font-size:32px}
  .hero .lead{text-align:justify;text-justify:inter-ideograph}
  .datstrip .wrap{grid-template-columns:repeat(2,1fr)}
  .dat:nth-child(3){border-left:none}
  .dat:nth-child(n+3){border-top:1px solid rgba(199,154,60,.25)}
  .sec{padding:52px 0}
  .sec h2{font-size:24px}
  .trinity,.tracks,.org-grid{grid-template-columns:1fr}
  .duo{grid-template-columns:1fr;gap:14px}
  .duo-mid i{transform:rotate(90deg);margin:0 auto}
  .facts-table th{width:110px}
  .sec p,.sec li,.t-card p,.org-blk p,.duo-card p,.tl-item span,.esg-note,.card p{ text-align:justify;text-justify:inter-ideograph}
}
@media (max-width:600px){
  .hero h1{font-size:27px}
  .dat b{font-size:26px}
  .foot-org-cards{flex-direction:column}
}

/* ---------- PI 认证表单（含下拉选择框重设计） ---------- */
.pi-form .f-item{margin-bottom:18px}
.pi-form .f-label{display:block;font-size:13.5px;font-weight:600;letter-spacing:.02em;color:var(--ink3);margin-bottom:7px}
.pi-form .f-input{display:block;width:100%;padding:12px 14px;border:1px solid rgba(11,46,32,.16);
  border-radius:8px;font-size:15px;color:var(--ink);background:#FBFAF6;font-family:inherit;
  transition:border-color .18s,box-shadow .18s,background .18s;-webkit-appearance:none;appearance:none}
.pi-form .f-input:hover{border-color:rgba(11,46,32,.34)}
.pi-form .f-input:focus{outline:none;border-color:var(--gold);background:#fff;
  box-shadow:0 0 0 3px rgba(199,154,60,.15)}
.pi-form select.f-input{padding-right:40px;cursor:pointer;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230B2E20' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:12px 8px}
.pi-form select.f-input:invalid{color:var(--ink3)}
.pi-form .f-check{display:flex;gap:9px;align-items:flex-start;font-size:13.5px;color:var(--ink2);line-height:1.7}
.pi-form .f-check input{width:16px;height:16px;margin-top:3px;accent-color:var(--gold-dk);flex:none;cursor:pointer}