/* ============================================================
   GOOD HEALTH — Airlaid Paper Mill
   Editorial industrial design system · v2
   白纸底 / 墨色排印 / 无阴影无圆角 / 摄影驱动
   ============================================================ */
:root{
  --ink:#161F1A;            /* 主文字 */
  --ink-soft:#39463F;
  --muted:#5A685F;          /* 次要文字 */
  --paper:#FFFFFF;
  --wash:#F6F5F0;           /* 暖纸灰，交替 section */
  --wash-2:#EFEEE7;
  --green:#155039;          /* 品牌绿：按钮/链接 */
  --green-hover:#0E3D2B;
  --deep:#0D2B20;           /* 深墨绿：footer/hero 叠加 */
  --line:#E3E2DA;
  --line-dark:#2A4237;
  --accent:#B98A2F;         /* 金：仅 kicker/编号 */
  --r:2px;
  --wrap:1240px;
  --sans:ui-sans-serif,-apple-system,"Segoe UI","Helvetica Neue",Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.7;font-size:16.5px;font-weight:400}
img{max-width:100%;display:block;height:auto}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-hover)}
::selection{background:#CFE0D6}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
h1,h2,h3,h4{font-weight:700;letter-spacing:-.015em;line-height:1.16;color:var(--ink)}

/* ---------- kicker / 编号 ---------- */
.kicker{display:flex;align-items:center;gap:12px;color:var(--accent);font-weight:700;
  letter-spacing:.16em;font-size:12px;text-transform:uppercase}
.kicker::before{content:"";width:26px;height:1.5px;background:var(--accent);flex:none}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:90;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line)}
.head-in{max-width:var(--wrap);margin:0 auto;padding:0 28px;height:70px;
  display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand svg{display:block}
.nav{display:flex;gap:30px;margin-left:auto;align-items:center}
.nav a{color:var(--ink-soft);font-weight:550;font-size:15px;padding:26px 0;position:relative;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:0;bottom:-1px;width:0;height:2px;background:var(--green);transition:width .22s}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a.on::after{width:100%}
.nav a.on{color:var(--ink);font-weight:650}
.head-cta{margin-left:6px}
.btn{display:inline-block;padding:13px 26px;border-radius:var(--r);font-weight:650;font-size:15px;
  cursor:pointer;border:1.5px solid transparent;text-align:center;transition:background .15s,color .15s,border-color .15s;letter-spacing:.01em}
.btn-primary{background:var(--green);color:#fff;border-color:var(--green)}
.btn-primary:hover{background:var(--green-hover);color:#fff}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green)}
.btn-outline:hover{background:var(--green);color:#fff}
.hero .btn-outline{color:#fff;border-color:rgba(255,255,255,.75)}
.hero .btn-outline:hover{background:#fff;color:var(--deep)}
.btn-sm{padding:10px 18px;font-size:14px}
.burger{display:none;margin-left:auto;background:none;border:0;cursor:pointer;padding:10px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5.5px 0}

/* ---------- Hero（满幅摄影） ---------- */
.hero{position:relative;color:#fff;background:var(--deep);overflow:hidden;display:flex;align-items:flex-end;min-height:660px}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(78deg,rgba(9,29,21,.92) 0%,rgba(9,29,21,.72) 38%,rgba(9,29,21,.28) 72%,rgba(9,29,21,.45) 100%)}
.hero-in{position:relative;max-width:var(--wrap);margin:0 auto;padding:120px 28px 0;width:100%}
.hero .kicker{color:#D9B25F}
.hero .kicker::before{background:#D9B25F}
.hero h1{font-size:clamp(34px,4.6vw,58px);font-weight:750;color:#fff;letter-spacing:-.02em;
  margin:22px 0 20px;max-width:15ch;line-height:1.1}
.hero p.lead{font-size:18.5px;color:rgba(255,255,255,.88);max-width:58ch;margin-bottom:32px;font-weight:400}
.hero .acts{display:flex;gap:14px;flex-wrap:wrap;padding-bottom:44px}
.hero-trust{position:relative;width:100%;border-top:1px solid rgba(255,255,255,.28);
  display:grid;grid-template-columns:repeat(4,1fr);max-width:var(--wrap);margin:0 auto;padding:0 28px}
.hero-trust>div{padding:22px 26px 26px 0;border-right:1px solid rgba(255,255,255,.16)}
.hero-trust>div:last-child{border-right:0}
.hero-trust b{display:block;font-size:23px;color:#fff;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.hero-trust span{font-size:13px;color:rgba(255,255,255,.62);letter-spacing:.06em;text-transform:uppercase}

/* ---------- 内页 page head ---------- */
.page-head{background:var(--wash);border-bottom:1px solid var(--line);padding:56px 0 48px}
.page-head .crumbs{font-size:13.5px;color:var(--muted);margin-bottom:22px}
.page-head .crumbs a{color:var(--muted)}
.page-head .crumbs a:hover{color:var(--green)}
.page-head .crumbs span{color:var(--accent)}
.page-head h1{font-size:clamp(30px,3.8vw,46px);font-weight:750;letter-spacing:-.02em;max-width:22ch}
.page-head p{color:var(--muted);max-width:68ch;margin-top:14px;font-size:17.5px}

/* ---------- Section ---------- */
section{padding:92px 0}
section.tight{padding:64px 0}
.sec-head{max-width:780px;margin-bottom:52px}
.sec-head .kicker{margin-bottom:18px}
.sec-head h2{font-size:clamp(26px,3.1vw,38px);font-weight:750;letter-spacing:-.02em;margin-bottom:16px}
.sec-head p{color:var(--muted);font-size:17px}
.alt{background:var(--wash);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 卡片（无框排印式） ---------- */
.grid{display:grid;gap:44px 36px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{display:block;color:inherit}
.card img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:opacity .25s;background:var(--wash-2)}
.card:hover img{opacity:.86}
.card .cbody{padding:20px 0 0;border-top:1.5px solid var(--ink);margin-top:18px}
.card h3{font-size:19.5px;margin-bottom:8px}
.card:hover h3{color:var(--green)}
.card p{font-size:15px;color:var(--muted)}
.card .more{display:inline-block;margin-top:12px;font-weight:650;font-size:14px;color:var(--green);letter-spacing:.02em}
.card .more::after{content:" →"}

/* ---------- Features（编号式） ---------- */
.feat{border-top:1.5px solid var(--ink);padding-top:20px}
.feat .num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.14em;display:block;margin-bottom:14px}
.feat h3{font-size:18.5px;margin-bottom:10px}
.feat p{font-size:15px;color:var(--muted)}

/* ---------- Split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;margin:8px 0}
.split .tag{display:none}
.split h2{font-size:clamp(24px,2.7vw,33px);font-weight:750;margin:16px 0 14px}
.split p{color:var(--muted)}
.split img{background:var(--wash-2)}

/* ---------- 规格表 ---------- */
.spec{width:100%;border-collapse:collapse;font-size:15.5px;border-top:2px solid var(--ink)}
.spec th,.spec td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.spec th{color:var(--muted);font-weight:600;width:36%;font-size:14px;text-transform:uppercase;letter-spacing:.06em}
.spec td{color:var(--ink);font-weight:550}
.spec tr:hover th,.spec tr:hover td{background:var(--wash)}

/* ---------- Ticks ---------- */
.ticks{list-style:none;display:grid;gap:13px}
.ticks li{padding-left:26px;position:relative;color:var(--ink-soft);font-size:15.5px}
.ticks li::before{content:"";position:absolute;left:0;top:11px;width:14px;height:1.5px;background:var(--accent)}
.ticks li b{color:var(--ink)}

/* ---------- FAQ ---------- */
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{padding:22px 8px 22px 0;font-weight:650;cursor:pointer;color:var(--ink);list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:18px;font-size:17px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:26px;color:var(--accent);font-weight:400;flex:none;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 40px 24px 0;color:var(--muted);font-size:15.5px}

/* ---------- CTA band ---------- */
.cta-band{background:var(--deep);color:#fff;padding:84px 0}
.cta-band .wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:44px;align-items:center}
.cta-band h2{font-size:clamp(25px,3vw,36px);color:#fff;font-weight:750;letter-spacing:-.02em;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.75);max-width:56ch}
.cta-band .btn{justify-self:end}

/* ---------- Footer ---------- */
footer{background:var(--deep);color:#93A89C;padding:72px 0 34px;font-size:14.5px}
footer .wrap{max-width:var(--wrap)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:44px;margin-bottom:52px}
.foot-grid h4{color:#fff;font-size:13px;margin-bottom:18px;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.foot-grid p{color:#93A89C;line-height:1.75}
.foot-grid a{display:block;color:#93A89C;padding:5px 0;transition:color .15s}
.foot-grid a:hover{color:#D9B25F}
.foot-base{border-top:1px solid var(--line-dark);padding-top:24px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;color:#6E8579;font-size:13px}

/* ---------- 导览 ---------- */
.tour{background:var(--paper);border:1px solid var(--line);overflow:hidden}
.tour-stage{position:relative;height:min(64vh,600px);background:#0B1D15;overflow:hidden;cursor:grab;touch-action:none}
.tour-stage.dragging{cursor:grabbing}
.tour-stage.full{position:fixed;inset:0;z-index:200;height:100vh;border-radius:0}
.tour-canvas{position:absolute;top:0;left:0;transform-origin:0 0;will-change:transform}
.tour-canvas img{user-select:none;-webkit-user-drag:none;pointer-events:none}
.hotspot{position:absolute;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;background:var(--accent);
  border:2.5px solid #fff;box-shadow:0 2px 10px rgba(0,0,0,.4);cursor:pointer;display:flex;align-items:center;justify-content:center;
  font-weight:700;color:#fff;font-size:13.5px;transition:transform .15s}
.hotspot:hover{transform:scale(1.16)}
.hotspot .tip{position:absolute;bottom:130%;left:50%;transform:translateX(-50%);background:#fff;color:var(--ink);
  padding:7px 13px;border-radius:2px;font-size:13.5px;font-weight:650;white-space:nowrap;opacity:0;pointer-events:none;
  transition:.15s;box-shadow:0 4px 16px rgba(0,0,0,.3)}
.hotspot:hover .tip{opacity:1}
.tour-bar{display:flex;align-items:center;gap:10px;padding:14px 18px;background:var(--paper);border-top:1px solid var(--line);flex-wrap:wrap}
.tour-places{display:flex;gap:8px;flex-wrap:wrap;flex:1}
.tour-places button{padding:9px 16px;border-radius:var(--r);border:1.4px solid var(--line);background:#fff;
  font-weight:600;font-size:14px;cursor:pointer;color:var(--muted);transition:.15s}
.tour-places button:hover{border-color:var(--green);color:var(--green)}
.tour-places button.on{background:var(--deep);border-color:var(--deep);color:#fff}
.tour-tools{display:flex;gap:8px}
.tour-tools button{width:40px;height:40px;border-radius:var(--r);border:1.4px solid var(--line);background:#fff;
  cursor:pointer;font-size:17px;color:var(--ink)}
.tour-note{font-size:13.5px;color:var(--muted);padding:0 18px 14px}
.tour-pop{position:fixed;inset:0;z-index:210;background:rgba(8,22,15,.66);display:none;align-items:center;justify-content:center;padding:20px}
.tour-pop.show{display:flex}
.tour-pop .box{background:#fff;max-width:560px;width:100%;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.45)}
.tour-pop .box img{width:100%;max-height:340px;object-fit:cover}
.tour-pop .box .pbody{padding:24px 28px 28px}
.tour-pop h3{font-size:20px;margin-bottom:8px}
.tour-pop p{color:var(--muted);font-size:15px}
.tour-pop .close{float:right;background:none;border:0;font-size:24px;cursor:pointer;color:var(--muted)}

/* ---------- 表单 ---------- */
.quote-form{background:var(--paper);border:1.5px solid var(--ink);padding:38px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.frow1{margin-bottom:18px}
label{display:block;font-weight:600;font-size:13.5px;margin-bottom:7px;color:var(--ink);letter-spacing:.03em}
input,select,textarea{width:100%;padding:12px 14px;border:1.4px solid var(--line);border-radius:var(--r);
  font-size:15px;font-family:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--green)}
textarea{min-height:110px;resize:vertical}
.form-note{font-size:13px;color:var(--muted);margin-top:12px}
.form-ok{display:none;background:var(--wash);border-left:3px solid var(--green);color:var(--ink);
  padding:14px 18px;margin-bottom:18px;font-weight:550}

/* ---------- KV 数字块 ---------- */
.kv{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--ink);border-bottom:1px solid var(--line)}
.kv .b{padding:26px 24px;border-right:1px solid var(--line)}
.kv .b:last-child{border-right:0}
.kv b{display:block;font-size:30px;color:var(--ink);font-weight:750;letter-spacing:-.02em}
.kv span{font-size:13.5px;color:var(--muted);letter-spacing:.04em}

/* ---------- prose ---------- */
.prose{max-width:800px;margin:0 auto}
.prose h2{font-size:27px;margin:44px 0 16px}
.prose h3{font-size:19.5px;margin:30px 0 10px}
.prose p{color:var(--ink-soft);margin-bottom:15px}
.prose ul{margin:0 0 16px 2px;list-style:none}
.prose ul li{padding:5px 0 5px 26px;position:relative;color:var(--ink-soft)}
.prose ul li::before{content:"";position:absolute;left:0;top:13px;width:14px;height:1.5px;background:var(--accent)}
.prose table{margin:22px 0}
.imgwide{margin:30px 0;background:var(--wash-2)}

/* ---------- 小件 ---------- */
.tag{display:none}

/* ---------- 响应式 ---------- */
@media(max-width:1020px){
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .cta-band .wrap{grid-template-columns:1fr}
  .cta-band .btn{justify-self:start}
}
@media(max-width:960px){
  .nav{position:fixed;inset:70px 0 auto 0;background:#fff;flex-direction:column;align-items:stretch;
    padding:10px 28px 24px;gap:2px;border-bottom:1px solid var(--line);box-shadow:0 18px 40px rgba(0,0,0,.1);display:none}
  .nav.open{display:flex}
  .nav a{padding:14px 4px;font-size:16px}
  .nav a::after{display:none}
  .head-cta{display:none}
  .burger{display:block}
  .hero{min-height:600px}
  .hero-in{padding-top:84px}
  .hero h1{font-size:clamp(28px,7.4vw,38px);max-width:18ch}
  .hero p.lead{font-size:16.5px}
  .hero .kicker{font-size:11px;letter-spacing:.1em}
  .hero-trust{grid-template-columns:repeat(2,1fr)}
  .hero-trust>div{padding:18px 18px 18px 0}
  .hero-trust>div:nth-child(2n){border-right:0}
  .split{grid-template-columns:1fr;gap:34px}
}
@media(max-width:640px){
  .wrap{padding:0 20px}
  .head-in{padding:0 20px}
  .g2,.g3,.g4{grid-template-columns:1fr}
  section{padding:64px 0}
  .frow{grid-template-columns:1fr}
  .hero{min-height:0}
  .hero-in{padding:60px 20px 0}
  .hero h1{font-size:30px}
  .hero .kicker{display:block;font-size:11px;letter-spacing:.1em}
  .hero .kicker::before{display:none}
  .hero-trust{padding:0 20px}
  .quote-form{padding:26px 22px}
  .kv{grid-template-columns:repeat(2,1fr)}
  .kv .b:nth-child(2n){border-right:0}
  .kv .b{border-bottom:1px solid var(--line)}
}