/* =========================================================
   冠佑医疗 · 集团官网样式表
   零依赖 / 系统字体 / 仅 transform + opacity 动画
   ========================================================= */

:root{
  --deep:#072742;
  --brand:#12579E;
  --brand-d:#0A3A70;
  --brand-l:#E9F3FD;
  --gold:#6FB4F2;
  --gold-l:#EAF4FE;
  --ink:#142233;
  --ink-2:#4C5F73;
  --ink-3:#8396A9;
  --line:#E3EAF3;
  --bg-soft:#F5F8FD;
  --white:#fff;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 12px 34px rgba(6,28,58,.09);
  --shadow-sm:0 4px 16px rgba(6,28,58,.06);
  --header-h:76px;
  --container:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 16px);-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
[hidden]{display:none!important}
::selection{background:#d1deeb;color:var(--deep)}
.container{width:min(100% - 48px,var(--container));margin-inline:auto}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.icon{width:1em;height:1em;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.skip-link{position:absolute;left:12px;top:-60px;z-index:200;background:var(--brand);color:#fff;padding:10px 18px;border-radius:10px}
.skip-link:focus{top:12px}
:focus-visible{outline:3px solid #8cafd5;outline-offset:3px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 22px;border-radius:999px;border:1px solid transparent;font-weight:600;font-size:15px;line-height:1.4;white-space:nowrap;transition:transform .22s ease,background-color .22s ease,box-shadow .22s ease,border-color .22s ease}
.btn .icon{font-size:17px;transition:transform .22s ease}
.btn:hover .icon{transform:translateX(3px)}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(10,49,100,.2)}
.btn--primary:hover{background:var(--brand-d)}
.btn--gold{background:var(--gold);color:#091f3b;box-shadow:0 8px 22px rgba(107,161,200,.25)}
.btn--gold:hover{background:#88b8da}
.btn--ghost-dark{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
.btn--ghost-dark:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn--lg{padding:15px 28px;font-size:16px}
.btn--block{width:100%}

/* ---------- 入场动画 ---------- */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.22,.7,.3,1),transform .6s cubic-bezier(.22,.7,.3,1)}
.js .reveal.is-visible{opacity:1;transform:none}
.business-grid .reveal:nth-child(2),.quality-grid .reveal:nth-child(2),.esg__grid .reveal:nth-child(2),.member-grid .reveal:nth-child(2),.value-grid .reveal:nth-child(2){transition-delay:.07s}
.business-grid .reveal:nth-child(3),.quality-grid .reveal:nth-child(3),.esg__grid .reveal:nth-child(3),.member-grid .reveal:nth-child(3),.value-grid .reveal:nth-child(3){transition-delay:.14s}
.business-grid .reveal:nth-child(4),.quality-grid .reveal:nth-child(4),.member-grid .reveal:nth-child(4),.value-grid .reveal:nth-child(4){transition-delay:.21s}
.business-grid .reveal:nth-child(5),.member-grid .reveal:nth-child(5){transition-delay:.1s}
.business-grid .reveal:nth-child(6),.member-grid .reveal:nth-child(6){transition-delay:.17s}

/* ---------- 通用标题 ---------- */
.section{padding:92px 0}
.section--soft{background:var(--bg-soft)}
.kicker{color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.2em;margin-bottom:12px}
.section-head{text-align:center;max-width:700px;margin:0 auto 46px}
.section-head h2,.overview__lead h2,.innovation__copy h2,.contact__left h2,.esg__head h2{font-size:clamp(27px,3vw,40px);line-height:1.32;font-weight:800;letter-spacing:-.01em}
.section-head>p:not(.kicker){color:var(--ink-2);margin-top:14px;font-size:16px}
.section-foot{margin-top:32px;text-align:center;color:var(--ink-2);font-size:14.5px}
.section-foot a{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;margin-left:8px}
.section-foot a .icon{font-size:16px}

/* ---------- 顶部条 / 导航 ---------- */
.topbar{background:var(--deep);color:rgba(255,255,255,.72);font-size:13px}
.topbar__inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar span,.topbar a{display:inline-flex;align-items:center;gap:7px}
.topbar .icon{font-size:15px}
.topbar a:hover{color:#fff}
.header{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid transparent;transition:box-shadow .25s ease,border-color .25s ease}
.header.is-scrolled{box-shadow:0 6px 20px rgba(6,27,53,.09);border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:11px;flex:none}
.brand__logo{display:block;width:auto;height:52px;flex:none}
.nav{display:flex;align-items:center;gap:26px}
.nav>a:not(.btn){font-size:15px;font-weight:500;color:var(--ink-2);position:relative;padding:6px 0}
.nav>a:not(.btn)::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;background:var(--brand);transition:right .22s ease}
.nav>a:not(.btn):hover{color:var(--brand)}
.nav>a:not(.btn):hover::after{right:0}
.nav__cta{padding:10px 20px;font-size:14px}
.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);align-items:center;justify-content:center}
.menu-btn .icon{font-size:22px}
.menu-btn__close{display:none}
.menu-btn.is-open .menu-btn__open{display:none}
.menu-btn.is-open .menu-btn__close{display:block}
.nav-overlay{position:fixed;inset:0;z-index:45;background:rgba(5,21,42,.44)}

/* ---------- 首屏（写实实验室主视觉） ---------- */
.hero{position:relative;isolation:isolate;background:#04182f;color:#fff;padding:96px 0 60px;overflow:hidden}
.hero__visual{position:absolute;top:0;right:0;bottom:0;left:34%;z-index:0;pointer-events:none;overflow:hidden}
.hero__visual img{display:block;width:100%;height:100%;object-fit:cover;object-position:68% 50%}
.hero__visual::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#04182f 0%,rgba(4,24,47,.94) 10%,rgba(4,24,47,.5) 34%,rgba(4,24,47,.12) 70%,rgba(4,24,47,.3) 100%),linear-gradient(180deg,rgba(4,24,47,.55) 0%,transparent 30%,rgba(4,24,47,.45) 100%)}
.hero__bg{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(760px 460px at 78% 20%,rgba(107,161,200,.12),transparent 70%)}
.hero__bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(90deg,transparent,#000 65%,transparent)}
.hero__inner{position:relative;z-index:2}
.hero__copy{max-width:620px}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;color:#b6d9f2;font-size:13px;font-weight:600;letter-spacing:.1em;background:rgba(111,180,242,.1);border:1px solid rgba(159,200,229,.26);padding:7px 15px;border-radius:999px}
.hero__eyebrow span{width:22px;height:2px;background:var(--gold)}
.hero h1{font-size:clamp(34px,4vw,54px);line-height:1.28;font-weight:800;letter-spacing:-.01em;margin:22px 0 20px;text-shadow:0 3px 22px rgba(2,14,30,.55)}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero__desc{color:rgba(255,255,255,.84);font-size:clamp(15px,1.2vw,17px);line-height:1.9;max-width:35em;text-shadow:0 2px 14px rgba(2,14,30,.5)}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero__meta{display:flex;align-items:center;gap:9px;margin-top:28px;color:rgba(255,255,255,.68);font-size:13.5px}
.hero__meta .icon{font-size:18px;color:#b9d1e6}
.hero-stats{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);margin-top:56px;border:1px solid rgba(255,255,255,.16);background:rgba(5,24,48,.62);border-radius:var(--radius-lg);box-shadow:0 18px 44px rgba(0,0,0,.16)}
.hero-stats li{display:flex;flex-direction:column;gap:2px;padding:24px 20px;text-align:center;position:relative}
.hero-stats li+li::before{content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:rgba(255,255,255,.16)}
.hero-stats strong{font-size:clamp(24px,2.6vw,34px);font-weight:800;color:#9fc8e5;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.hero-stats span{font-size:13px;color:rgba(255,255,255,.7)}

/* ---------- 公司座右铭（首屏大标题上方，独立于小标签） ---------- */
.hero__motto{position:relative;display:block;margin:26px 0 0;padding-left:14px;max-width:34em;font-size:16px;font-weight:500;line-height:1.85;letter-spacing:.08em;color:#D6E8F7;text-shadow:0 2px 14px rgba(2,14,30,.55)}
.hero__motto::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:2px;border-radius:2px;background:linear-gradient(180deg,var(--gold),rgba(111,180,242,.28))}
.hero__motto+h1{margin-top:14px}

/* ---------- 集团概览 ---------- */
.overview{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px;align-items:start}
.overview__lead h2{margin-top:2px}
.overview__body>p{color:var(--ink-2);font-size:15.5px;line-height:1.95;margin-bottom:14px}
.value-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:26px}
.value-grid li{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#fff}
.value-grid .icon{font-size:22px;color:var(--brand);flex:none}
.value-grid strong{font-size:14.5px;white-space:nowrap}
.value-grid li>span:last-child{font-size:12.5px;color:var(--ink-3);margin-left:auto;white-space:nowrap}

/* ---------- 业务版图 ---------- */
/* 经营范围速览：桌面 6 列 / 平板 3 列 / 手机 2 列；编号由 CSS 计数器生成，内容仍可在后台直接改文字 */
.scope-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;list-style:none;margin:-18px 0 28px;padding:0;counter-reset:scope}
.scope-strip li{display:flex;align-items:center;justify-content:center;gap:7px;padding:11px 6px;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:13px;font-weight:600;color:var(--ink);text-align:center;white-space:nowrap}
.scope-strip li::before{counter-increment:scope;content:counter(scope,decimal-leading-zero);font-size:11px;font-weight:700;color:#9AAAB9;font-variant-numeric:tabular-nums}
/* 速览条只给核心业务（动物诊疗）上深蓝，其余保持中性灰，避免六项抢同一个视觉焦点 */
.scope-strip li:first-child{background:var(--deep);border-color:transparent;color:#fff;box-shadow:0 8px 20px rgba(6,28,58,.16)}
.scope-strip li:first-child::before{color:rgba(255,255,255,.56)}
.business-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.business-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 22px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}
.business-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#d9e2ea}
.business-card__top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px}
.business-card__icon{width:52px;height:52px;border-radius:14px;background:#F3F6F9;color:#93A2B0;display:grid;place-items:center}
.business-card__icon .icon{font-size:26px}
.business-card__no{font-size:12px;font-weight:700;letter-spacing:.1em;color:#d4dbe1}
.business-card h3{font-size:19px;line-height:1.42;margin-bottom:6px}
.business-card__brand{color:#64748B;font-size:12px;font-weight:600;line-height:1.5;letter-spacing:.02em;border-left:2px solid #D8E0E8;padding-left:8px;margin-bottom:12px}
.business-card>p:not(.business-card__brand){color:var(--ink-2);font-size:14px;line-height:1.8;flex:1}
.business-card__tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.business-card__tags>*{font-size:11px;color:#64748B;background:#F3F6F9;padding:3px 9px;border-radius:999px}
.business-card--feature{background:linear-gradient(155deg,#08244a,#0a3164);border-color:transparent;color:#fff;box-shadow:0 14px 34px rgba(5,31,68,.18)}
.business-card--feature:hover{border-color:transparent}
.business-card--feature .business-card__icon{background:rgba(107,161,200,.18);color:#9fc8e5}
.business-card--feature .business-card__no{color:rgba(255,255,255,.45)}
.business-card--feature .business-card__brand{color:#9fc8e5;border-left-color:#9fc8e5}
.business-card--feature>p:not(.business-card__brand){color:rgba(255,255,255,.76)}
.business-card--feature .business-card__tags>*{background:rgba(255,255,255,.12);color:#eff4f8}
.business-card__link{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding-top:16px;border-top:1px solid rgba(255,255,255,.2);color:#9fc8e5;font-size:14px;font-weight:600}
.business-card__link .icon{font-size:16px;transition:transform .22s ease}
.business-card__link:hover .icon{transform:translate(2px,-2px)}
/* 普通白底卡片：整体去色，仅动物诊疗用深蓝，形成单点强调 */
.business-card:not(.business-card--feature) .business-card__link{border-top-color:var(--line);color:#64748B;font-size:13.5px}
.business-card:not(.business-card--feature) .business-card__link:hover{color:var(--deep)}

/* ---------- 产业协同 ---------- */
.chain{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;position:relative}
.chain::before{content:"";position:absolute;left:7%;right:7%;top:27px;height:2px;background:linear-gradient(90deg,#e0e8ef,#acc4d9,#e0e8ef)}
.chain li{position:relative;text-align:center;padding:0 4px}
.chain__step{position:relative;z-index:1;width:56px;height:56px;margin:0 auto 16px;border-radius:50%;background:#fff;border:1px solid #e9eff3;color:var(--brand);display:grid;place-items:center;box-shadow:0 0 0 7px #fff}
.chain__step .icon{font-size:25px}
.chain strong{display:block;font-size:15.5px;margin-bottom:4px}
.chain small{display:block;font-size:12.5px;color:var(--ink-3);line-height:1.6}
.chain__note{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:36px;padding:16px 22px;background:var(--brand-l);border-radius:12px;color:var(--ink-2);font-size:14px;text-align:center}
.chain__note .icon{font-size:19px;color:var(--brand);flex:none}
.chain__note strong{color:var(--brand)}

/* ---------- 研发创新 ---------- */
.innovation{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.innovation__visual{border-radius:var(--radius-lg);overflow:hidden;background:#fafcfd;box-shadow:var(--shadow-sm)}
.innovation__visual img{width:100%;height:auto}
.innovation__copy h2{margin-bottom:16px}
.innovation__copy>p:not(.kicker){color:var(--ink-2);font-size:15px;line-height:1.9;margin-bottom:22px}
.research-list{display:flex;flex-direction:column;gap:16px}
.research-list li{display:flex;gap:14px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.research-list li:last-child{border-bottom:0;padding-bottom:0}
.research-list__no{font-size:13px;font-weight:800;color:var(--gold);letter-spacing:.06em;padding-top:2px}
.research-list li>span:last-child{display:flex;flex-direction:column;gap:2px}
.research-list strong{font-size:15.5px}
.research-list small{font-size:13px;color:var(--ink-3);line-height:1.7}
.research-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.research-stats li{display:flex;flex-direction:column;gap:2px}
.research-stats strong{font-size:26px;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.research-stats span{font-size:12px;color:var(--ink-3);line-height:1.5}

/* ---------- 品质合规 ---------- */
.quality-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.quality-grid li{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;transition:transform .28s ease,box-shadow .28s ease}
.quality-grid li:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.quality-grid__icon{width:48px;height:48px;border-radius:13px;background:var(--gold-l);color:#37729c;display:grid;place-items:center;margin-bottom:18px}
.quality-grid__icon .icon{font-size:24px}
.quality-grid h3{font-size:17px;margin-bottom:9px}
.quality-grid p{color:var(--ink-2);font-size:13.5px;line-height:1.8;min-height:4.9em}
.quality-grid small{display:inline-block;margin-top:14px;font-size:11.5px;font-weight:600;color:var(--brand);background:var(--brand-l);padding:3px 10px;border-radius:999px}

/* ---------- 责任 / ESG ---------- */
.esg{background:linear-gradient(150deg,#051f44,#082953);color:#fff;padding:80px 0}
.esg__head{max-width:640px;margin-bottom:40px}
.esg__head .kicker{color:#9fc8e5}
.esg__head h2{margin-bottom:12px}
.esg__head p:not(.kicker){color:rgba(255,255,255,.7);font-size:15.5px}
.esg__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.esg__grid li{border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:26px;background:rgba(255,255,255,.05)}
.esg__grid .icon{font-size:26px;color:#9fc8e5;margin-bottom:16px}
.esg__grid h3{font-size:18px;margin-bottom:9px}
.esg__grid p{color:rgba(255,255,255,.7);font-size:14px;line-height:1.85}

/* ---------- 旗下机构 ---------- */
.member-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.member-card{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;transition:transform .25s ease,box-shadow .25s ease}
.member-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}
.member-card__icon{width:42px;height:42px;border-radius:11px;background:var(--brand-l);color:var(--brand);display:grid;place-items:center;flex:none}
.member-card__icon .icon{font-size:21px}
.member-card>div{display:flex;flex-direction:column;line-height:1.45;flex:1;min-width:0}
.member-card strong{font-size:15px}
.member-card small{font-size:12px;color:var(--ink-3)}
.member-card>a{width:32px;height:32px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;flex:none;transition:background .2s ease}
.member-card>a:hover{background:var(--deep)}
.member-card>a .icon{font-size:16px}
.member-sites,.chain-sites{display:flex;flex-wrap:wrap;align-items:center;gap:9px;margin-top:24px;padding-top:22px;border-top:1px solid var(--line)}
.member-sites>span,.chain-sites>span{font-size:13px;color:var(--ink-3);margin-right:4px}
.member-sites a,.chain-sites a{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand);background:var(--brand-l);border-radius:999px;padding:8px 15px;transition:background .2s ease,transform .2s ease}
.member-sites a:hover,.chain-sites a:hover{background:#d6e9fb;transform:translateY(-2px)}
.member-sites a::after,.chain-sites a::after{content:"↗";font-size:12px;line-height:1}
.chain-sites{margin-top:18px;padding-top:18px}

/* ---------- 联系合作 ---------- */
.contact{background:linear-gradient(160deg,#ffffff 0%,#FFFFFF 100%);padding:92px 0}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.contact__left h2{margin-bottom:14px}
.contact__left>p:not(.kicker){color:var(--ink-2);font-size:15.5px;margin-bottom:28px}
.contact-list{display:flex;flex-direction:column;gap:16px}
.contact-list li{display:flex;align-items:center;gap:14px}
.contact-list__icon{width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--line);color:var(--brand);display:grid;place-items:center;flex:none;box-shadow:var(--shadow-sm)}
.contact-list__icon .icon{font-size:21px}
.contact-list li>span:last-child{display:flex;flex-direction:column;line-height:1.45}
.contact-list small{font-size:12px;color:var(--ink-3)}
.contact-list a,.contact-list strong{font-size:16px;font-weight:700}
.contact-list a{color:var(--brand)}
.contact__brands{display:flex;align-items:center;flex-wrap:wrap;gap:10px 16px;margin-top:30px;padding:16px 18px;background:#fff;border:1px dashed #d9e2ea;border-radius:12px}
.contact__brands>span{font-size:12.5px;color:var(--ink-3);flex:0 0 100%}
.contact__brands a{display:inline-flex;align-items:center;gap:7px;color:var(--brand);font-size:13.5px;font-weight:600}
.contact__brands a:hover{text-decoration:underline;text-underline-offset:3px}
.contact__brands a .icon{font-size:15px}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:32px}
.form h3{font-size:21px;margin-bottom:4px}
.form__hint{font-size:13px;color:var(--ink-3);margin-bottom:22px}
.form__hint em,.field em{color:#C8604C;font-style:normal}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px;font-size:13.5px;font-weight:600}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:11px;background:#FBFDFC;font-size:14.5px;font-weight:400;transition:border-color .2s ease,box-shadow .2s ease;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(10,49,100,.12)}
.field input::placeholder,.field textarea::placeholder{color:#b8bfc7}
.field.is-invalid input,.field.is-invalid select,.field.is-invalid textarea{border-color:#C8604C;box-shadow:0 0 0 3px rgba(200,96,76,.1)}
.field--check{flex-direction:row;align-items:center;gap:9px;font-weight:400;font-size:13px;color:var(--ink-2);margin:2px 0 20px}
.field--check input{width:17px;height:17px;padding:0;border:0;border-radius:0;background:transparent;box-shadow:none;accent-color:var(--brand);flex:none}
.field--check input:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px}
.field--check.is-invalid{color:#C8604C}
.form__note{font-size:12px;color:var(--ink-3);text-align:center;margin-top:12px}
.form__success{display:flex;align-items:center;gap:12px;margin-top:16px;padding:14px;border-radius:12px;background:var(--brand-l);color:var(--brand)}
.form__success .icon{font-size:24px;background:var(--brand);color:#fff;border-radius:50%;padding:4px;box-sizing:content-box;flex:none}
.form__success span{display:flex;flex-direction:column;line-height:1.45}
.form__success strong{font-size:14px}
.form__success small{font-size:12px;color:var(--ink-2)}

/* ---------- 页脚 ---------- */
.footer{background:#041832;color:rgba(255,255,255,.7);padding:64px 0 0}
.footer__inner{display:grid;grid-template-columns:1.55fr 1fr 1fr 1.35fr;gap:40px;padding-bottom:48px}
.footer .brand__logo{height:56px}
.footer__brand p{font-size:13.5px;line-height:1.9;margin-top:18px;max-width:24em}
.footer__tag{display:inline-flex;align-items:center;gap:7px;margin-top:16px;padding:6px 12px;border:1px solid rgba(255,255,255,.18);border-radius:999px;font-size:12px;color:rgba(255,255,255,.7)}
.footer__tag .icon{font-size:14px;color:#9fc8e5}
.footer__col{display:flex;flex-direction:column;gap:11px}
.footer__col h3{color:#fff;font-size:15px;margin-bottom:6px}
.footer__col a{font-size:13.5px}
.footer__col a:hover{color:#b9d1e6}
.footer__contact p{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;line-height:1.6}
.footer__contact .icon{font-size:16px;color:#b9d1e6;margin-top:3px;flex:none}
.footer__sitelinks{display:flex;flex-direction:column;align-items:flex-start;gap:8px;margin-top:6px}
.footer__sitelinks a{display:inline-flex;align-items:center;gap:6px;color:#9fc8e5!important;font-size:13px!important;font-weight:600}
.footer__sitelinks a:hover{color:#fff!important}
.footer__sitelinks .icon{font-size:14px;flex:none}
.footer__bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:16px;font-size:12px;color:rgba(255,255,255,.48)}
/* 备案信息（页脚最底部）：可在后台「备案信息」里填写备案号与链接 */
.footer__legal{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:4px 12px;margin-top:2px;padding:0 0 24px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.45)}
.footer__legal a{color:rgba(255,255,255,.62);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease}
.footer__legal a:hover{color:#fff}
.footer__legal span{opacity:.5}
.footer__bottom a{color:rgba(185,209,230,.75);text-decoration:underline;text-underline-offset:3px}

/* ---------- 悬浮控件 ---------- */
.mobile-bar{display:none}
.to-top{position:fixed;right:22px;bottom:24px;z-index:60;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand);display:grid;place-items:center;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .25s ease,transform .25s ease,visibility .25s}
.to-top.is-visible{opacity:1;visibility:visible;transform:none}
.to-top .icon{font-size:21px}
.toast{position:fixed;left:50%;bottom:28px;transform:translate(-50%,12px);z-index:90;background:var(--deep);color:#fff;padding:12px 22px;border-radius:999px;font-size:14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:opacity .25s ease,transform .25s ease,visibility .25s}
.toast.is-visible{opacity:1;visibility:visible;transform:translate(-50%,0)}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1080px){
  .container{width:min(100% - 40px,var(--container))}
  .nav{gap:18px}
  .nav__cta{padding:9px 16px}
  .hero__visual{left:30%}
  .overview,.innovation{gap:38px}
  .contact__inner{gap:38px}
}

@media (max-width:960px){
  :root{--header-h:66px}
  .nav{position:absolute;top:100%;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 22px;border-bottom:1px solid var(--line);box-shadow:0 16px 28px rgba(6,27,53,.12);opacity:0;visibility:hidden;transform:translateY(-10px);pointer-events:none;transition:opacity .22s ease,transform .22s ease,visibility .22s}
  .nav.is-open{opacity:1;visibility:visible;transform:none;pointer-events:auto}
  .nav>a:not(.btn){padding:13px 4px;border-bottom:1px solid var(--line);font-size:15.5px}
  .nav>a:not(.btn)::after{display:none}
  .nav__cta{margin-top:16px;justify-content:center}
  .menu-btn{display:flex}
  .hero{padding:64px 0 48px}
  .hero__visual{left:0}
  .hero__visual img{object-position:74% 48%}
  .hero__visual::after{background:linear-gradient(90deg,rgba(4,24,47,.97) 0%,rgba(4,24,47,.9) 34%,rgba(4,24,47,.58) 100%),linear-gradient(180deg,rgba(4,24,47,.6) 0%,transparent 40%,rgba(4,24,47,.6) 100%)}
  .hero__copy{max-width:640px}
  .hero-stats{margin-top:40px}
  .overview{grid-template-columns:1fr;gap:24px}
  .scope-strip{grid-template-columns:repeat(3,1fr);margin-top:-10px}
  .business-grid{grid-template-columns:repeat(2,1fr)}
  .chain{grid-template-columns:repeat(3,1fr);gap:26px 14px}
  .chain::before{display:none}
  .innovation{grid-template-columns:1fr;gap:34px}
  .innovation__visual{max-width:600px}
  .quality-grid{grid-template-columns:repeat(2,1fr)}
  .quality-grid p{min-height:0}
  .esg__grid{grid-template-columns:1fr}
  .member-grid{grid-template-columns:repeat(2,1fr)}
  .contact__inner{grid-template-columns:1fr;gap:40px}
  .contact__left,.form{max-width:640px}
  .footer__inner{grid-template-columns:repeat(2,1fr);gap:32px}
}

@media (max-width:768px){
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
  .container{width:min(100% - 32px,var(--container))}
  .topbar__inner{min-height:32px;font-size:12px}
  .topbar__left{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .hero{padding:38px 0 44px}
  .hero h1{font-size:clamp(29px,7.2vw,40px);margin:18px 0 14px}
  .hero__desc{font-size:15px;line-height:1.85}
  .hero__actions{gap:10px;margin-top:24px}
  .btn--lg{padding:13px 22px;font-size:15px}
  .hero__meta{font-size:12.5px;margin-top:20px}
  .hero__visual img{object-position:78% 50%}
  .hero__visual::after{background:linear-gradient(180deg,rgba(4,24,47,.95) 0%,rgba(4,24,47,.86) 42%,rgba(4,24,47,.52) 100%)}
  .hero-stats{grid-template-columns:repeat(2,1fr);margin-top:28px;padding:6px 0}
  .hero-stats li{padding:16px 8px}
  .hero-stats li:nth-child(3)::before{display:none}
  .hero-stats strong{font-size:25px}
  .hero-stats span{font-size:12px}
  .hero__motto{margin-top:18px;padding-left:12px;font-size:15px;line-height:1.75;letter-spacing:.04em}
  .hero__motto+h1{margin-top:12px}  .section{padding:62px 0}
  .section-head{margin-bottom:32px}
  .overview__lead h2{font-size:clamp(25px,6vw,32px)}
  .value-grid{gap:10px}
  .value-grid li{padding:12px;gap:9px;flex-wrap:wrap}
  .value-grid li>span:last-child{margin-left:31px;white-space:normal}
  .scope-strip{grid-template-columns:repeat(2,1fr);gap:8px;margin:-6px 0 22px}
  .scope-strip li{font-size:12.5px;padding:10px 5px;gap:5px;white-space:normal}
  .scope-strip li::before{font-size:10px}
  .business-grid{grid-template-columns:1fr;gap:14px}
  .business-card{padding:22px}
  .business-card h3{font-size:18px}
  .business-card__brand{font-size:12px}
  .business-card__icon{width:46px;height:46px}
  .business-card__icon .icon{font-size:23px}
  .business-card>p:not(.business-card__brand){font-size:14px}
  .business-card__tags{gap:6px;margin-top:14px}
  .business-card__link{margin-top:18px;padding-top:14px}
  .chain{grid-template-columns:1fr;gap:0}
  .chain li{display:grid;grid-template-columns:56px 1fr;gap:0 16px;text-align:left;padding-bottom:20px}
  .chain li:not(:last-child)::before{content:"";position:absolute;left:27px;top:56px;bottom:0;width:2px;background:#e6edf2}
  .chain__step{margin:0;grid-row:span 2;box-shadow:0 0 0 7px #fff}
  .chain strong{align-self:end;font-size:15px;margin-bottom:0}
  .chain small{grid-column:2;font-size:12.5px}
  .chain__note{text-align:left;justify-content:flex-start;padding:14px 16px;font-size:13px}
  .research-list li{gap:10px}
  .research-stats{gap:10px}
  .research-stats strong{font-size:21px}
  .research-stats span{font-size:11px}
  .quality-grid{grid-template-columns:1fr;gap:12px}
  .quality-grid li{padding:20px}
  .esg{padding:58px 0}
  .member-grid{grid-template-columns:1fr}
  .contact{padding:62px 0}
  .contact__brands{gap:9px 12px;padding:14px}
  .contact__brands a{font-size:12.5px}
  .chain-sites{margin-top:16px;padding-top:16px;gap:7px}
  .chain-sites a,.member-sites a{font-size:12.5px;padding:7px 12px}
  .form{padding:22px 18px;border-radius:20px}
  .form__row{grid-template-columns:1fr;gap:0}
  .footer{padding:48px 0 0}
  .footer__bottom{flex-direction:column;gap:6px;text-align:center}
  .footer__legal{justify-content:center;text-align:center}
  .mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:55;display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:9px 16px calc(9px + env(safe-area-inset-bottom));background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(6,27,53,.08)}
  .mobile-bar__item{display:flex;align-items:center;justify-content:center;gap:8px;height:46px;border-radius:12px;font-size:15px;font-weight:700}
  .mobile-bar__item .icon{font-size:19px}
  .mobile-bar__item--call{background:var(--brand-l);color:var(--brand)}
  .mobile-bar__item--book{background:var(--brand);color:#fff}
  .to-top{bottom:calc(80px + env(safe-area-inset-bottom));right:16px;width:42px;height:42px}
  .toast{bottom:calc(84px + env(safe-area-inset-bottom));max-width:calc(100% - 32px);text-align:center}
}

@media (max-width:400px){
  .brand__logo{height:44px}
  .scope-strip li{font-size:12px;gap:4px;padding:9px 4px}
  .hero__actions .btn{flex:1 1 100%}
  .value-grid{grid-template-columns:1fr}
  .value-grid li>span:last-child{margin-left:0}
  .research-stats{grid-template-columns:1fr;gap:12px}
  .research-stats li{flex-direction:row;align-items:baseline;gap:10px}
  .footer__inner{grid-template-columns:1fr}
  .contact__brands a{font-size:12px}
  .chain-sites a,.member-sites a{font-size:12px;padding:7px 11px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
}