:root {
  --ink: #091525;
  --ink-2: #10233a;
  --steel: #50647b;
  --steel-2: #71859b;
  --line: #dce4eb;
  --paper: #f6f8fa;
  --white: #fff;
  --accent: #d37a36;
  --accent-2: #f0a25b;
  --shadow: 0 18px 42px rgba(8, 27, 46, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif; line-height: 1.65; }
::selection { color: var(--white); background: var(--accent); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }

.site-header { position: fixed; z-index: 10; inset: 0 0 auto; color: var(--white); border-bottom: 1px solid rgba(255,255,255,.14); background: linear-gradient(to bottom, rgba(6,15,27,.5), rgba(6,15,27,0)); transition: background .3s ease, box-shadow .3s ease; }
.site-header.is-scrolled { background: rgba(9,21,37,.94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom-color: rgba(255,255,255,.08); box-shadow: 0 10px 30px rgba(6,17,30,.35); }
.header-inner { display: flex; align-items: center; min-height: 80px; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 11px; min-width: max-content; }
.brand strong { display: block; font-size: 16px; letter-spacing: .06em; font-weight: 800; }
.brand small { display: block; color: rgba(255,255,255,.62); font: 10px/1.3 Manrope, "Segoe UI", Arial, sans-serif; letter-spacing: .14em; text-transform: uppercase; }
.brand-mark { display: flex; align-items: flex-end; gap: 3px; width: 29px; height: 29px; padding: 4px; border: 1px solid rgba(255,255,255,.55); }
.brand-mark i { display: block; width: 5px; background: var(--accent-2); transform: skewX(-17deg); }
.brand-mark i:nth-child(1) { height: 10px; opacity: .62; }
.brand-mark i:nth-child(2) { height: 16px; opacity: .82; }
.brand-mark i:nth-child(3) { height: 21px; }
.site-nav { display: flex; gap: 25px; align-items: center; margin-left: auto; }
.site-nav a { font-size: 13px; color: rgba(255,255,255,.76); transition: color .2s ease; }
.site-nav a:hover, .site-nav a:focus-visible { color: var(--white); }
.header-call { display: inline-flex; align-items: center; gap: 8px; padding-left: 20px; border-left: 1px solid rgba(255,255,255,.2); color: var(--white); font: 600 13px Manrope, "Segoe UI", Arial, sans-serif; white-space: nowrap; }
.header-call svg { width: 16px; height: 16px; color: var(--accent-2); }
.icon-button { border: 0; background: transparent; color: var(--white); cursor: pointer; }
.menu-toggle { display: none; }

.hero { position: relative; min-height: 720px; display: flex; align-items: center; color: var(--white); overflow: hidden; background: var(--ink); }
.hero-media { position: absolute; inset: 0; background-image: url("assets/hero-仓储全景.jpg"); background-size: cover; background-position: center; opacity: .9; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(5,17,30,.82) 0%, rgba(5,17,30,.45) 52%, rgba(5,17,30,.25) 100%); }
.hero-content { position: relative; z-index: 1; padding: 150px 0 102px; max-width: 700px; margin-left: max(24px, calc((100% - 1180px) / 2)); }
.eyebrow, .section-kicker { font: 700 11px/1.2 Manrope, "Segoe UI", Arial, sans-serif; letter-spacing: .18em; text-transform: uppercase; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; color: var(--accent-2); }
.eyebrow span { display: inline-block; width: 34px; height: 1px; background: var(--accent-2); }
.hero h1 { margin: 18px 0 8px; font-size: clamp(50px, 7vw, 88px); line-height: 1.08; letter-spacing: .02em; font-weight: 800; }
.hero-lead { margin: 0 0 18px; font-size: clamp(22px, 3vw, 32px); line-height: 1.35; font-weight: 600; letter-spacing: .01em; }
.hero-copy { max-width: 540px; margin: 0; color: rgba(255,255,255,.76); font-size: 16px; line-height: 1.9; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 46px; padding: 0 18px; border: 1px solid transparent; font-size: 13px; font-weight: 700; transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg { width: 16px; height: 16px; }
.button-primary { color: var(--white); background: var(--accent); box-shadow: 0 10px 24px rgba(211,122,54,.32); }
.button-primary:hover { background: #bd682b; box-shadow: 0 14px 30px rgba(211,122,54,.4); }
.button-quiet { border-color: rgba(255,255,255,.28); color: var(--white); background: rgba(9,21,37,.18); }
.button-quiet:hover { border-color: rgba(255,255,255,.64); }
.hero-note { display: flex; align-items: center; gap: 8px; margin-top: 25px; color: rgba(255,255,255,.55); font-size: 12px; }
.hero-note svg { width: 15px; height: 15px; color: var(--accent-2); }
.hero-scroll { position: absolute; right: 34px; bottom: 35px; z-index: 1; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.56); font: 11px Manrope, "Segoe UI", Arial, sans-serif; letter-spacing: .12em; text-transform: uppercase; writing-mode: vertical-rl; }
.hero-scroll span { width: 1px; height: 42px; background: rgba(255,255,255,.45); }

.section { padding: 108px 0; }
section[id] { scroll-margin-top: 90px; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 45px; margin-bottom: 45px; }
.section-heading > div { max-width: 680px; }
.section-kicker { color: var(--accent); }
.section-heading .section-kicker { display: inline-flex; align-items: center; gap: 10px; }
.section-heading .section-kicker::before { content: ""; width: 30px; height: 1px; background: var(--accent); }
.section-heading h2, .about h2, .contact-band h2 { margin: 13px 0 0; font-size: clamp(29px, 4vw, 47px); line-height: 1.2; letter-spacing: -.01em; font-weight: 800; }
.section-heading > p { max-width: 360px; margin: 0; color: var(--steel); font-size: 14px; line-height: 1.9; }

.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.category-item { position: relative; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); overflow: hidden; transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
.category-item:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }
.category-media { height: 210px; overflow: hidden; background: #eef2f5; }
.category-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .35s ease; }
.category-item:hover .category-media img { transform: scale(1.05); }
.category-wide .category-media { height: 230px; }
.category-body { position: relative; flex: 1; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; padding: 20px 25px 25px; }
.category-wide { grid-column: span 2; }
.category-number { color: var(--accent); font: 700 13px Manrope, "Segoe UI", Arial, sans-serif; letter-spacing: .08em; }
.category-item h3 { margin: 0 0 7px; font-size: 24px; }
.category-item p { max-width: 330px; margin: 0; color: var(--steel); font-size: 13px; }
.category-body > svg { position: absolute; right: 24px; bottom: 24px; width: 20px; height: 20px; color: var(--steel-2); transition: color .2s ease, transform .2s ease; }
.category-item:hover .category-body > svg { color: var(--accent); transform: translate(3px, -3px); }

.capabilities { color: var(--white); background: var(--ink); }
.heading-light > p { color: rgba(255,255,255,.63); }
.capability-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 70px; }
.capability-list { border-top: 1px solid rgba(255,255,255,.2); }
.capability-row { display: grid; grid-template-columns: 46px 1fr 30px; align-items: start; gap: 18px; padding: 25px 0; border-bottom: 1px solid rgba(255,255,255,.16); }
.capability-icon { display: grid; place-items: center; width: 42px; height: 42px; color: var(--accent-2); border: 1px solid rgba(240,162,91,.48); }
.capability-icon svg { width: 19px; height: 19px; }
.capability-row h3 { margin: 1px 0 6px; font-size: 18px; }
.capability-row p { margin: 0; color: rgba(255,255,255,.6); font-size: 13px; }
.capability-index { padding-top: 8px; color: rgba(255,255,255,.38); font: 12px Manrope, "Segoe UI", Arial, sans-serif; text-align: right; }
.capability-aside { align-self: stretch; padding: 28px; background: var(--ink-2); border-left: 2px solid var(--accent); }
.aside-label { color: var(--accent-2); font: 700 10px Manrope, "Segoe UI", Arial, sans-serif; letter-spacing: .16em; }
.capability-aside p { margin: 34px 0; font-size: 28px; line-height: 1.4; letter-spacing: -.03em; }
.aside-rule { width: 42px; height: 2px; background: var(--accent); }
.aside-caption { display: block; margin-top: 15px; color: rgba(255,255,255,.58); font-size: 12px; }

.process { background: #eef2f5; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 0; margin: 0; list-style: none; border-top: 1px solid #cfd8e0; }
.process-step { position: relative; min-height: 235px; padding: 25px 22px 25px 0; border-right: 1px solid #cfd8e0; }
.process-step + .process-step { padding-left: 22px; }
.process-step:last-child { border-right: 0; }
.step-num { display: block; margin-bottom: 37px; color: var(--accent); font: 700 13px Manrope, "Segoe UI", Arial, sans-serif; }
.process-step > svg { position: absolute; top: 23px; right: 21px; width: 20px; height: 20px; color: var(--steel); transition: color .2s ease, transform .2s ease; }
.process-step:hover > svg { color: var(--accent); transform: translateY(-2px); }
.process-step h3 { margin: 0 0 8px; font-size: 20px; }
.process-step p { max-width: 190px; margin: 0; color: var(--steel); font-size: 13px; line-height: 1.8; }

.about { background: var(--white); }
.about-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 100px; align-items: start; }
.about-copy p { max-width: 650px; margin: 24px 0 0; color: var(--steel); font-size: 15px; line-height: 2; }
.about-facts { border-top: 1px solid var(--line); }
.fact { display: flex; flex-direction: column; gap: 7px; padding: 19px 0; border-bottom: 1px solid var(--line); }
.fact span { color: var(--steel-2); font-size: 12px; }
.fact strong { font-size: 18px; font-weight: 700; }

.contact-band { color: var(--white); background: var(--accent); }
.contact-layout { display: flex; justify-content: space-between; align-items: center; gap: 40px; padding: 66px 0; }
.contact-band .section-kicker { color: rgba(255,255,255,.74); }
.contact-band h2 { margin-top: 12px; }
.contact-band p { margin: 12px 0 0; color: rgba(255,255,255,.78); font-size: 14px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.button-light { color: var(--accent); background: var(--white); }
.button-outline-light { color: var(--white); border-color: rgba(255,255,255,.6); }
.button-outline-light:hover { border-color: var(--white); background: rgba(255,255,255,.1); }

.site-footer { color: rgba(255,255,255,.72); background: #06111e; }
.footer-grid { display: grid; grid-template-columns: 1.1fr .55fr 1fr; gap: 60px; padding: 52px 0 42px; }
.footer-brand .brand small { color: rgba(255,255,255,.45); }
.footer-brand p { max-width: 280px; margin: 18px 0 0; color: rgba(255,255,255,.47); font-size: 12px; }
.footer-detail { display: flex; flex-direction: column; gap: 9px; }
.footer-detail > span { color: rgba(255,255,255,.43); font-size: 11px; letter-spacing: .08em; }
.footer-detail a { color: var(--white); font: 600 19px Manrope, "Segoe UI", Arial, sans-serif; }
.footer-detail p { max-width: 260px; margin: 0; color: rgba(255,255,255,.75); font-size: 13px; line-height: 1.8; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 17px 0 21px; border-top: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.38); font-size: 11px; }

@media (max-width: 860px) {
  .container { width: min(100% - 36px, 680px); }
  .site-header { position: fixed; }
  .header-inner { min-height: 70px; gap: 18px; }
  .site-nav { position: absolute; top: 70px; left: 18px; right: 18px; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 8px; background: #0d2135; border: 1px solid rgba(255,255,255,.15); box-shadow: var(--shadow); }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 12px 14px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .site-nav a:last-child { border-bottom: 0; }
  .header-call span { display: none; }
  .header-call { margin-left: auto; padding-left: 0; border-left: 0; }
  .menu-toggle { display: grid; place-items: center; width: 34px; height: 34px; order: 3; }
  .menu-toggle svg { width: 20px; height: 20px; }
  .hero { min-height: 720px; }
  .hero-content { margin-left: max(18px, calc((100% - 680px) / 2)); padding: 130px 0 100px; }
  .hero-scroll { display: none; }
  .section { padding: 76px 0; }
  .section-heading { display: block; margin-bottom: 32px; }
  .section-heading > p { margin-top: 20px; }
  .category-grid { grid-template-columns: 1fr 1fr; }
  .category-wide { grid-column: span 2; }
  .capability-layout, .about-grid { grid-template-columns: 1fr; gap: 35px; }
  .capability-aside { min-height: 250px; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .process-step:nth-child(2) { border-right: 0; }
  .process-step:nth-child(-n+2) { border-bottom: 1px solid #cfd8e0; }
  .contact-layout { display: block; padding: 50px 0; }
  .contact-actions { margin-top: 25px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
  .footer-brand { grid-column: span 2; }
}

@media (max-width: 520px) {
  .container { width: calc(100% - 28px); }
  .brand strong { font-size: 14px; }
  .hero-content { margin-left: max(14px, calc((100% - 680px) / 2)); padding-top: 120px; }
  .hero h1 { font-size: 54px; }
  .hero-lead { font-size: 22px; }
  .hero-copy { font-size: 14px; }
  .hero-actions .button { width: 100%; }
  .category-grid, .process-grid { grid-template-columns: 1fr; }
  .category-wide { grid-column: auto; }
  .category-media, .category-wide .category-media { height: 180px; }
  .process-step, .process-step + .process-step { padding: 21px 0; border-right: 0; border-bottom: 1px solid #cfd8e0; }
  .process-step:last-child { border-bottom: 0; }
  .step-num { margin-bottom: 27px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 7px; }
}

/* 滚动淡入动效 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; transition-delay: var(--reveal-delay, 0s); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .button, .category-media img, .category-body > svg { transition: none; }
}