/* ============ 设计系统 ============ */
:root{
  --blue-700:#1d4ed8;
  --blue-600:#2563eb;
  --blue-500:#3b82f6;
  --blue-100:#dbeafe;
  --blue-50:#eff6ff;
  --ink:#0f172a;
  --slate-600:#475569;
  --slate-500:#64748b;
  --slate-300:#cbd5e1;
  --slate-100:#f1f5f9;
  --white:#ffffff;
  --green:#16a34a;
  --radius:16px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.06);
  --shadow:0 10px 30px rgba(37,99,235,.12);
  --maxw:1160px;
  --font:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.hl{color:var(--blue-600)}

/* ============ 按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 22px;border-radius:999px;font-weight:600;font-size:15px;border:1.5px solid transparent;cursor:pointer;transition:.2s;white-space:nowrap}
.btn--primary{background:var(--blue-600);color:#fff;box-shadow:var(--shadow)}
.btn--primary:hover{background:var(--blue-700);transform:translateY(-1px)}
.btn--ghost{background:#fff;color:var(--blue-600);border-color:var(--blue-100)}
.btn--ghost:hover{background:var(--blue-50)}
.btn--lg{padding:14px 30px;font-size:16px}
.btn--block{width:100%}

/* ============ 导航 ============ */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(10px);border-bottom:1px solid var(--slate-100)}
.nav__inner{max-width:var(--maxw);margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:20px}
.nav__logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700}
.nav__logo-mark{width:38px;height:38px;flex:0 0 38px;display:block;border-radius:9px;object-fit:contain}
.nav__logo-text strong{color:var(--blue-600)}
.nav__links{display:flex;gap:26px;margin-left:auto;font-size:15px;color:var(--slate-600)}
.nav__links a{position:relative;padding:4px 0}
.nav__links a:hover{color:var(--blue-600)}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--blue-600);transition:.2s}
.nav__links a:hover::after{width:100%}
.nav__cta{margin-left:6px}
.nav__burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer}
.nav__burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:70px 20px 80px}
.hero__bg{position:absolute;inset:0;background:
  radial-gradient(900px 500px at 85% -10%,rgba(59,130,246,.18),transparent),
  radial-gradient(700px 400px at 0% 100%,rgba(37,99,235,.10),transparent),
  linear-gradient(180deg,#f8fbff,#ffffff)}
.hero__inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;position:relative}
.hero__tag{display:inline-block;background:var(--blue-50);color:var(--blue-700);font-weight:600;font-size:13px;padding:6px 14px;border-radius:999px;border:1px solid var(--blue-100)}
.hero__title{font-size:52px;line-height:1.15;font-weight:800;margin:18px 0 16px;letter-spacing:-1px}
.hero__sub{font-size:17px;color:var(--slate-600);max-width:520px}
.hero__actions{display:flex;gap:14px;margin:26px 0 22px;flex-wrap:wrap}
.hero__points{list-style:none;display:flex;flex-direction:column;gap:8px;color:var(--slate-600);font-size:15px}
.hero__points li{color:var(--slate-600)}
.hero__stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-card{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.stat-card__num{font-size:38px;font-weight:800;color:var(--blue-600);line-height:1}
.stat-card__label{font-size:13px;color:var(--slate-500);margin-top:6px}

/* ============ 信任条 ============ */
.trust{background:var(--blue-600);color:#fff}
.trust__inner{max-width:var(--maxw);margin:0 auto;padding:18px 20px;display:flex;flex-wrap:wrap;justify-content:space-around;gap:14px;font-weight:600;font-size:15px}
.trust__item{display:flex;align-items:center;gap:8px}
.trust__ico{font-size:18px}

/* ============ 通用 section ============ */
.section{max-width:var(--maxw);margin:0 auto;padding:80px 20px}
.section--alt{background:var(--slate-100);max-width:none}
.section--alt > *{max-width:var(--maxw);margin-left:auto;margin-right:auto}
.section__head{text-align:center;max-width:680px;margin:0 auto 48px}
.section__eyebrow{display:inline-block;color:var(--blue-600);font-weight:700;font-size:14px;letter-spacing:1px}
.section__title{font-size:36px;font-weight:800;margin:10px 0 12px;letter-spacing:-.5px}
.section__desc{color:var(--slate-600);font-size:16px}

/* ============ 业务卡片 ============ */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--blue-100)}
.card__ico{font-size:34px;margin-bottom:12px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--slate-600);font-size:14.5px}

/* ============ 流程动画 ============ */
.process{max-width:var(--maxw);margin:0 auto;padding:80px 20px}
.process__stage{display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:start}
.room{background:linear-gradient(180deg,#f8fbff,#eef4ff);border:1px solid var(--blue-100);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.room svg{width:100%;height:auto;display:block}
.room__wall{fill:#ffffff;stroke:#dbeafe;stroke-width:2}
.room__floor{fill:#e2e8f0}
.room__window{fill:#dbeafe;stroke:#93c5fd;stroke-width:2}
.room__window-bar{stroke:#93c5fd;stroke-width:1.5}
.room__label{fill:var(--slate-500);font-size:12px;font-weight:600}
.room__door{fill:#eef2ff;stroke:#c7d2fe;stroke-width:2}
.room__door-knob{fill:#94a3b8}
.nightstand{fill:#e2e8f0;stroke:#cbd5e1}
.bed__base{fill:#cbd5e1}
.curtain rect{fill:#bfdbfe}
.floor__shine{fill:transparent}
.step-halo{opacity:0;transition:.3s}

/* 状态元素初始可见性 */
.bed__made,.amenity,.bath-sparkle,.glass__sparkle,.done-badge{opacity:0;transition:opacity .5s}
.bed__dirty,.trash__items,.dust{opacity:1;transition:opacity .5s}

/* 步骤驱动的状态（容器加 .sN 类） */
.s2 .bed__dirty{opacity:0}
.s3 .trash__items{opacity:0}
.s4 .glass__sparkle{opacity:1}
.s5 .dust{opacity:0}
.s6 .bed__made{opacity:1}
.s7 .bath-sparkle{opacity:1}
.s8 .amenity{opacity:1}
.s9 .floor__shine{fill:rgba(59,130,246,.10)}
.s10 .done-badge{opacity:1}
.s1 .step-halo,.s2 .step-halo,.s3 .step-halo,.s4 .step-halo,.s5 .step-halo,
.s6 .step-halo,.s7 .step-halo,.s8 .step-halo,.s9 .step-halo,.s10 .step-halo{opacity:1}

.process__panel{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.process__progress{height:8px;background:var(--slate-100);border-radius:999px;overflow:hidden;margin-bottom:18px}
.process__bar{height:100%;width:0;background:linear-gradient(90deg,var(--blue-500),var(--blue-700));transition:width .4s}
.steps{list-style:none;display:flex;flex-direction:column;gap:6px}
.steps li{display:flex;gap:12px;padding:10px 12px;border-radius:12px;cursor:pointer;transition:.2s;border:1px solid transparent}
.steps li:hover{background:var(--blue-50)}
.steps li.active{background:var(--blue-50);border-color:var(--blue-100)}
.steps__no{font-weight:800;color:var(--slate-300);font-size:15px;min-width:24px}
.steps li.active .steps__no{color:var(--blue-600)}
.steps li b{display:block;font-size:15px}
.steps li em{font-style:normal;color:var(--slate-500);font-size:13px}
.process__controls{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}

/* ============ 核心优势 ============ */
.adv{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.adv__item{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);transition:.2s}
.adv__item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.adv__num{font-size:30px;font-weight:800;color:var(--blue-100);line-height:1}
.adv__item h3{font-size:18px;margin:10px 0 8px}
.adv__item p{color:var(--slate-600);font-size:14.5px}

/* ============ 服务场景 ============ */
.scene{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.scene__card{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:28px 22px;text-align:center;box-shadow:var(--shadow-sm);transition:.2s}
.scene__card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--blue-100)}
.scene__card span{font-size:40px}
.scene__card h3{font-size:18px;margin:10px 0 6px}
.scene__card p{color:var(--slate-500);font-size:14px}

/* ============ 合作流程 ============ */
.flow{display:flex;align-items:stretch;justify-content:center;gap:8px;flex-wrap:wrap}
.flow__step{background:#fff;border:1px solid var(--slate-100);border-radius:var(--radius);padding:26px 22px;width:230px;text-align:center;box-shadow:var(--shadow-sm)}
.flow__no{width:42px;height:42px;border-radius:50%;background:var(--blue-600);color:#fff;display:grid;place-items:center;font-weight:800;margin:0 auto 12px;font-size:18px}
.flow__step h3{font-size:17px;margin-bottom:6px}
.flow__step p{color:var(--slate-500);font-size:14px}
.flow__arrow{display:flex;align-items:center;color:var(--blue-400,#60a5fa);font-size:26px;font-weight:800}

/* ============ 联系我们 ============ */
.contact{max-width:var(--maxw);margin:0 auto;padding:80px 20px}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;background:linear-gradient(135deg,#1d4ed8,#3b82f6);border-radius:24px;padding:46px;color:#fff;box-shadow:var(--shadow)}
.contact__info .section__eyebrow{color:#bfdbfe}
.contact__info .section__title{color:#fff}
/* 蓝底上的高亮字不能用深蓝（会糊在背景里），改成白字 + 浅蓝下划线 */
.contact__info .hl{color:#fff;text-decoration:underline;text-decoration-color:#93c5fd;text-decoration-thickness:3px;text-underline-offset:6px}
.contact__info .section__desc{color:#dbeafe}
.contact__list{list-style:none;margin-top:22px;display:flex;flex-direction:column;gap:12px;font-size:15px}
.contact__list b{color:#bfdbfe;font-weight:600;margin-right:6px}
.contact__phone{background:rgba(255,255,255,.94);color:var(--blue-700);font-weight:600;padding:2px 10px;border-radius:6px}
.contact__form{background:#fff;border-radius:18px;padding:26px;color:var(--ink);box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--slate-600)}
.field input,.field textarea{width:100%;padding:12px 14px;border:1.5px solid var(--slate-100);border-radius:10px;font-family:inherit;font-size:15px;color:var(--ink);transition:.2s;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-100)}
.field input.invalid,.field textarea.invalid{border-color:#ef4444;box-shadow:0 0 0 3px #fee2e2}
.contact__hint{font-size:12px;color:var(--slate-500);margin-top:10px;text-align:center}
.contact__form button:disabled{opacity:.6;cursor:wait}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#cbd5e1;padding:40px 20px}
.footer__inner{max-width:var(--maxw);margin:0 auto;text-align:center}
.footer__brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff}
.footer__slogan{margin:12px 0 6px;color:#94a3b8}
.footer__copy{font-size:13px;color:#94a3b8}
.footer__beian{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 20px;margin-top:12px;font-size:12px;line-height:1.6}
.footer__beian[hidden],.footer__beian [hidden]{display:none!important}
.footer__beian a{display:inline-flex;align-items:center;gap:7px;color:#cbd5e1;text-decoration:none}
.footer__beian a:hover{color:#fff;text-decoration:underline}
.footer__beian-ico{width:16px;height:16px;flex:none;opacity:.88}
.footer__beian a:hover .footer__beian-ico{opacity:1}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ Toast ============ */
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);background:var(--ink);color:#fff;padding:13px 22px;border-radius:12px;font-size:14px;opacity:0;pointer-events:none;transition:.3s;z-index:99;box-shadow:var(--shadow)}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:var(--green)}

/* ============ 滚动揭示 ============ */
/* 仅在 JS 可用时才隐藏并做滚动揭示；JS 加载失败时内容保持可见 */
.js .reveal{opacity:0;transform:translateY(24px);transition:.6s ease}
.js .reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media(max-width:980px){
  .hero__inner,.process__stage,.contact__inner{grid-template-columns:1fr}
  .cards,.scene{grid-template-columns:repeat(2,1fr)}
  .adv{grid-template-columns:repeat(2,1fr)}
  .hero__title{font-size:42px}
}
@media(max-width:680px){
  .nav__links{position:fixed;top:62px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;gap:14px;border-bottom:1px solid var(--slate-100);transform:translateY(-120%);transition:.3s;box-shadow:var(--shadow-sm)}
  .nav__links.open{transform:none}
  .nav__burger{display:flex;margin-left:auto}
  .nav__cta{display:none}
  .cards,.scene,.adv{grid-template-columns:1fr}
  .hero__title{font-size:34px}
  .section__title{font-size:28px}
  .flow__arrow{transform:rotate(90deg)}
  .contact__inner{padding:28px 20px}
  .stat-card__num{font-size:30px}
}

/* ============ 影片式流程演示 ============ */
.film{min-width:0}
.film__stage{position:relative;aspect-ratio:16/10;background:#0b1b33;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.film__frame{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transform:scale(1.02);transition:opacity .55s ease}
.film__frame.is-active{opacity:1;animation:filmKenburns 6s ease-out forwards}
video.film__frame.is-active{animation:none;transform:none}
@keyframes filmKenburns{from{transform:scale(1.02)}to{transform:scale(1.10)}}
.film__caption{position:absolute;left:0;right:0;bottom:0;padding:52px 22px 20px;display:flex;gap:14px;align-items:flex-start;color:#fff;background:linear-gradient(180deg,transparent,rgba(8,20,40,.86))}
.film__no{font-size:32px;font-weight:800;line-height:1;color:#7dd3fc;min-width:44px}
.film__text b{display:block;font-size:19px;font-weight:700;letter-spacing:.5px}
.film__text em{display:block;font-style:normal;font-size:13px;opacity:.86;margin-top:5px;line-height:1.6}
.film__badge{position:absolute;top:14px;left:14px;padding:5px 11px;border-radius:999px;background:rgba(8,20,40,.58);color:#fff;font-size:12px;letter-spacing:.5px;backdrop-filter:blur(4px)}
.film__progress{height:6px;background:var(--slate-100);border-radius:999px;overflow:hidden;margin-top:12px}
.film__progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue-500),var(--blue-700));transition:width .12s linear}
.film__note{text-align:right;font-size:12px;color:var(--slate-400);margin-top:8px}
.no-js .process__controls{display:none}
/* 宽屏时画面跟随滚动，读右侧 10 步时始终能看到对应动作 */
@media(min-width:981px){.film{position:sticky;top:88px}}
@media(max-width:640px){
  .film__stage{aspect-ratio:4/3}
  .film__caption{padding:38px 14px 14px;gap:10px}
  .film__no{font-size:24px;min-width:34px}
  .film__text b{font-size:16px}
  .film__text em{font-size:12px}
}

/* ============ 合作酒店 logo 墙 ============ */
#partners{padding-top:72px}
.brands{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.brand{min-width:0;background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:14px 12px 13px;text-align:center;box-shadow:0 1px 3px rgba(15,23,42,.03);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.brand:hover{transform:translateY(-4px);border-color:var(--blue-100);box-shadow:0 12px 26px rgba(37,99,235,.14)}
.brand__logo{height:78px;display:flex;align-items:center;justify-content:center;overflow:hidden}
.brand__logo img{display:block;max-width:100%;max-height:78px;width:auto;height:auto;object-fit:contain;filter:grayscale(1) brightness(0) opacity(.7);transition:filter .25s ease}
.brand:hover .brand__logo img{filter:grayscale(0) brightness(.82) saturate(1.1) opacity(1)}
.brand__name{display:block;margin-top:10px;font-size:13px;font-weight:600;color:var(--slate-600);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .25s}
.brand:hover .brand__name{color:var(--blue-600)}
/* 没有公开品牌 logo 的酒店，用统一字标，不出现破图 */
.brand__logo--word{flex-direction:column;gap:7px;filter:grayscale(1) brightness(0) opacity(.7);transition:filter .25s}
.brand:hover .brand__logo--word{filter:none}
.brand__mono{width:34px;height:34px;border-radius:50%;border:1.5px solid var(--blue-600);color:var(--blue-600);display:grid;place-items:center;font-weight:800;font-size:16px;line-height:1}
.brand__logo--word em{font-style:normal;font-size:9px;letter-spacing:1px;color:var(--slate-500);white-space:nowrap}
.brands__note{text-align:center;font-size:12px;color:var(--slate-500);margin-top:22px}
@media(max-width:900px){.brands{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:680px){#partners{padding-top:56px}.brands{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}}
@media(max-width:460px){.brands{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.brand{padding:12px 8px 11px}.brand__logo{height:66px}.brand__logo img{max-height:66px}.brand__name{font-size:12px}}