/* ==========================================================
   环博365 · 首页私有样式（依赖 common.css）
   ========================================================== */

/* 顶部：悬浮在 hero 之上 */
.site-header { position: absolute; top: 34px; left: 0; right: 0; z-index: 30; background: rgba(255,255,255,.84); border-bottom: 1px solid rgba(255,255,255,.45); backdrop-filter: blur(14px); }

/* ---------- 首屏 ---------- */
.hero { height: 620px; position: relative; overflow: hidden; color: var(--ink); background: var(--green-dark) url("../hero-wind.jpg") center 48% / cover no-repeat; }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(248,251,247,.98) 0%, rgba(248,251,247,.94) 38%, rgba(239,248,238,.76) 59%, rgba(225,241,223,.38) 76%, rgba(224,241,222,.18) 100%); }
.hero::after { content: ""; position: absolute; left: -12%; top: 430px; width: 124%; height: 560px; border-radius: 50%; background: linear-gradient(90deg, rgba(167,229,46,.23), rgba(167,229,46,.05) 65%, transparent); transform: rotate(-10deg); }
.hero-ribbon { position: absolute; right: -140px; top: 120px; width: 610px; height: 610px; border: 72px solid rgba(167,229,46,.13); border-radius: 50%; transform: rotate(-22deg); }
.hero-ribbon.second { right: -235px; top: 190px; border-width: 38px; border-color: rgba(23,97,72,.12); }
.hero .container { height: 100%; position: relative; z-index: 2; padding-top: 156px; }
.hero-brand-en { font-family: Arial,sans-serif; color: var(--green-dark); font-size: 47px; line-height: 1; font-weight: 700; letter-spacing: 2px; }
.hero-brand-en b { margin-left: 4px; color: var(--green-strong); font-weight: 700; }
.hero h1 { margin-top: 18px; color: var(--ink); font-size: 50px; line-height: 1.3; letter-spacing: -1.4px; font-weight: 650; }
.hero h1 em { color: var(--green-mid); font-style: normal; }
.hero-title-line { width: 56px; height: 3px; margin-top: 21px; border-radius: 3px; background: var(--green); }
.hero-desc { margin-top: 17px; color: #62706a; font-size: 15px; line-height: 1.85; letter-spacing: .5px; }
.hero-note { position: absolute; right: 0; top: 170px; width: 250px; text-align: right; }
.hero-note small { display: block; color: var(--green-mid); font-size: 10px; letter-spacing: 1.8px; }
.hero-note strong { display: block; margin-top: 8px; color: var(--green-dark); font-size: 19px; }
.hero-note p { margin-top: 8px; color: #77847d; font-size: 11px; line-height: 1.7; }

/* ---------- 全站搜索（独立板块） ---------- */
.home-search { margin-top: 0px; padding: 76px 0 82px; background: linear-gradient(115deg, #eef5ee 0%, #eef5ee 42%, #f8fbf7 42%, #f8fbf7 100%); }
.search-shell { max-width: 100%; margin: 0 auto; padding: 30px 38px 22px; border: 1px solid #e1e8e1; border-radius: 14px; background: white; box-shadow: 0 18px 48px rgba(23,55,39,.08); }
.search-title { margin-bottom: 14px; color: var(--green-dark); text-align: center; font-size: 18px; font-weight: 600; letter-spacing: 1px; }
.search-tabs { display: flex; justify-content: center; gap: 31px; margin-bottom: 16px; }
.search-tab { position: relative; padding: 0 0 7px; border: 0; color: #7c8982; background: transparent; font-size: 12px; }
.search-tab.active { color: var(--green-dark); font-weight: 650; }
.search-tab.active::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 15px; height: 2px; background: var(--green-strong); transform: translateX(-50%); }
.search-box { height: 60px; padding: 0 8px 0 23px; display: flex; align-items: center; border: 1px solid #b8c0ba; border-radius: 999px; background: white; transition: border-color .2s,box-shadow .2s; }
.search-box:focus-within { border-color: #82ad45; box-shadow: 0 0 0 3px rgba(167,229,46,.12); }
.search-input-wrap { flex: 1; display: flex; align-items: center; }
.search-input { width: 100%; border: 0; outline: none; color: var(--ink); background: transparent; font-size: 14px; }
.search-input::placeholder { color: #a2aca6; }
.search-clear { width: 35px; height: 35px; margin-right: 3px; display: grid; place-items: center; border: 0; border-radius: 50%; color: #828d86; background: transparent; font-size: 20px; opacity: 0; pointer-events: none; transition: opacity .2s; }
.search-clear.show { opacity: 1; pointer-events: auto; }
.search-btn { width: 42px; height: 42px; flex-shrink: 0; display: grid; place-items: center; border: 1px solid #88b351; border-radius: 50%; color: var(--green-mid); background: white; transition: .2s; }
.search-btn:hover { color: #17320d; background: var(--green); border-color: var(--green); }
.search-btn .icon { width: 18px; height: 18px; }
.hot-search { display: flex; justify-content: center; gap: 15px; margin-top: 11px; color: #8e9993; font-size: 11px; }
.hot-search button { padding: 0; border: 0; color: #727e77; background: none; }
.hot-search button:hover { color: var(--green-mid); }

/* ---------- 快捷入口 ---------- */
.quick-panel { position: relative; z-index: 5; margin-top: -46px; }
.quick-inner { min-height: 112px; display: grid; grid-template-columns: repeat(5, 1fr); padding: 20px 8px; border-radius: 12px; background: white; box-shadow: var(--shadow); }
.quick-item { position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; border-right: 1px solid var(--line); transition: transform .2s; }
.quick-item:last-child { border-right: 0; }
.quick-item:hover { transform: translateY(-3px); }
.quick-icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; color: var(--green-dark); background: #eff7e6; }
.quick-icon .icon { width: 25px; height: 25px; }
.quick-item:nth-child(2) .quick-icon { background: #eaf4f1; }
.quick-item:nth-child(3) .quick-icon { background: #f3f0e7; }
.quick-item:nth-child(4) .quick-icon { background: #eef1e6; }
.quick-item:nth-child(5) .quick-icon { background: #eaf2f4; }
.quick-text strong { display: block; color: var(--ink); font-size: 16px; font-weight: 650; }
.quick-text small { display: block; margin-top: 6px; color: #929b96; font-size: 11px; }

/* ---------- 平台简介 ---------- */
.platform-intro { margin-top: 0px; padding: 75px 0 82px; background: linear-gradient(115deg, #ffffff 0%, #ffffff 58%, #eef5ee 58%, #eef5ee 100%); }
.intro-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 74px; align-items: center; }
.intro-kicker { color: #94a09a; font-size: 9px; letter-spacing: 2.4px; text-transform: uppercase; }
.intro-title { margin-top: 9px; color: var(--ink); font-size: 31px; line-height: 1.2; font-weight: 650; letter-spacing: -.5px; }
.intro-desc { margin-top: 23px; color: #7a8580; font-size: 13px; line-height: 2; }
.intro-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 22px; color: var(--green-dark); font-size: 12px; font-weight: 550; }
.intro-link .icon { width: 15px; height: 15px; }
.intro-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 31px; }
.intro-stat { height: 104px; display: flex; flex-direction: column; justify-content: center; padding: 0 20px; border: 1px solid #e7ece8; border-radius: 8px; background: rgba(255,255,255,.86); }
.intro-stat strong { color: var(--green-dark); font-family: Arial,sans-serif; font-size: 24px; font-weight: 500; letter-spacing: -.5px; }
.intro-stat strong span { color: var(--green-strong); }
.intro-stat small { margin-top: 8px; color: #9aa49e; font-size: 10px; }
.intro-visual { height: 444px; position: relative; }
.intro-visual-back { position: absolute; top: 0; right: 0; width: 48%; height: 43%; overflow: hidden; border-radius: 9px; background: var(--green-dark); box-shadow: 0 18px 40px rgba(25,54,41,.12); }
.intro-visual-back img { height: 100%; object-fit: cover; }
.intro-visual-main { position: absolute; left: 0; bottom: 0; z-index: 2; width: 83%; height: 74%; overflow: hidden; border-radius: 9px; background: var(--green-dark); box-shadow: 0 20px 45px rgba(25,54,41,.13); }
.intro-visual-main::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(4,28,22,.6), rgba(4,28,22,.02) 58%); }
.intro-visual-main img { height: 100%; object-fit: cover; }
.intro-play { width: 54px; height: 54px; position: absolute; left: 50%; top: 48%; z-index: 3; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.7); border-radius: 50%; color: #17320d; background: rgba(255,255,255,.88); backdrop-filter: blur(5px); transform: translate(-50%,-50%); transition: .2s; }
.intro-play:hover { background: var(--green); transform: translate(-50%,-50%) scale(1.06); }
.intro-play .icon { width: 19px; height: 19px; margin-left: 3px; fill: currentColor; stroke: none; }
.intro-caption { position: absolute; left: 22px; right: 22px; bottom: 18px; z-index: 3; color: white; }
.intro-caption small { color: var(--green); font-size: 9px; letter-spacing: 1.2px; }
.intro-caption strong { display: block; margin-top: 6px; font-size: 15px; line-height: 1.55; font-weight: 550; }

/* ---------- 通用区块 ---------- */
.section { padding: 78px 0 0; }
.section-white { margin-top: 78px; padding: 72px 0; background: white; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 28px; }
.heading-left { display: flex; align-items: flex-end; gap: 24px; }
.section-title-wrap { position: relative; padding-left: 15px; }
.section-title-wrap::before { content: ""; position: absolute; left: 0; top: 4px; width: 4px; height: 28px; border-radius: 4px; background: var(--green-strong); }
.section-kicker { margin-bottom: 7px; color: #98a19c; font-size: 10px; line-height: 1; letter-spacing: 2.2px; text-transform: uppercase; }
.section-title { color: var(--ink); font-size: 28px; line-height: 1.2; font-weight: 650; letter-spacing: -.5px; }
.section-subtitle { padding-bottom: 2px; color: #8a948f; font-size: 13px; }
.more-link { display: inline-flex; align-items: center; gap: 8px; padding-bottom: 4px; color: #63706a; font-size: 13px; }
.more-link .icon { width: 16px; height: 16px; transition: transform .2s; }
.more-link:hover { color: var(--green-mid); }
.more-link:hover .icon { transform: translateX(3px); }

/* ---------- 供需匹配 ---------- */
.opportunity-grid { display: grid; grid-template-columns: 330px 1fr; min-height: 362px; overflow: hidden; border-radius: var(--radius); background: white; box-shadow: 0 8px 28px rgba(26,50,40,.05); }
.matching-card { position: relative; overflow: hidden; padding: 34px 30px; color: white; background: var(--green-dark); }
.matching-card::before { content: ""; position: absolute; width: 250px; height: 250px; right: -105px; top: -90px; border: 1px solid rgba(167,229,46,.22); border-radius: 50%; box-shadow: 0 0 0 35px rgba(167,229,46,.035), 0 0 0 75px rgba(167,229,46,.025); }
.matching-card::after { content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--green), transparent); }
.matching-label { position: relative; display: inline-flex; align-items: center; gap: 7px; color: var(--green); font-size: 11px; letter-spacing: 1px; }
.matching-label .icon { width: 15px; height: 15px; }
.matching-card h3 { position: relative; margin-top: 24px; font-size: 29px; line-height: 1.4; font-weight: 600; }
.matching-card > p { position: relative; margin-top: 14px; color: rgba(255,255,255,.63); font-size: 13px; line-height: 1.85; }
.matching-steps { position: relative; display: flex; gap: 8px; margin-top: 26px; }
.matching-steps span { padding: 6px 9px; border: 1px solid rgba(255,255,255,.16); border-radius: 4px; color: rgba(255,255,255,.72); font-size: 11px; }
.matching-card .publish-btn { position: relative; margin-top: 27px; padding: 0 23px; }
.demand-panel { padding: 10px 30px 8px; }
.demand-head, .demand-row { display: grid; grid-template-columns: minmax(0,1fr) 110px 104px 84px; align-items: center; column-gap: 18px; }
.demand-head { height: 46px; color: #a0a8a4; font-size: 11px; border-bottom: 1px solid var(--line); }
.demand-row { min-height: 69px; border-bottom: 1px solid #edf0ee; transition: background .2s; }
.demand-row:last-child { border-bottom: 0; }
.demand-row:hover { background: #fafcf9; }
.demand-name { min-width: 0; }
.demand-name a { display: flex; align-items: center; gap: 9px; min-width: 0; color: #2b3732; font-size: 14px; font-weight: 550; }
.demand-name a span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demand-name a:hover { color: var(--green-mid); }
.status { flex-shrink: 0; padding: 3px 6px; border-radius: 3px; color: #5e840d; background: #eff7df; font-size: 10px; font-weight: 500; }
.status.urgent { color: #c57439; background: #fff3e9; }
.demand-meta { color: #68756f; font-size: 12px; }
.demand-date { color: #98a19c; font-size: 12px; }
.demand-action { justify-self: end; color: #557064; font-size: 12px; }
.demand-action:hover { color: var(--green-mid); }

/* ---------- 精选技术 ---------- */
.tabs { display: flex; align-items: center; gap: 25px; margin-left: auto; margin-right: 30px; }
.tab { position: relative; padding: 0 0 7px; border: 0; color: #89938e; background: transparent; font-size: 13px; }
.tab.active { color: var(--green-dark); font-weight: 600; }
.tab.active::after { content: ""; position: absolute; left: 50%; bottom: 0; width: 16px; height: 2px; background: var(--green-strong); transform: translateX(-50%); }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.tech-card { overflow: hidden; border: 1px solid #e9edea; border-radius: 11px; background: white; transition: transform .25s, box-shadow .25s, border-color .25s; }
.tech-card:hover { transform: translateY(-5px); border-color: #dbe7d2; box-shadow: 0 15px 30px rgba(29,52,42,.09); }
.tech-image { height: 190px; position: relative; overflow: hidden; background: #e8eeea; }
.tech-image img { height: 100%; object-fit: cover; transition: transform .5s; }
.tech-card:hover .tech-image img { transform: scale(1.04); }
.tech-tag { position: absolute; left: 13px; top: 13px; padding: 5px 9px; border-radius: 4px; color: #25400f; background: rgba(207,241,143,.94); font-size: 10px; backdrop-filter: blur(4px); }
.tech-body { padding: 19px 18px 17px; }
.tech-body h3 { min-height: 46px; color: var(--ink); font-size: 16px; line-height: 1.5; font-weight: 600; }
.tech-company { display: flex; align-items: center; gap: 7px; margin-top: 16px; color: #8a948f; font-size: 11px; }
.tech-company .icon { width: 14px; height: 14px; }
.tech-footer { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; padding-top: 14px; border-top: 1px solid #edf0ee; }
.tech-footer span { color: #68756f; font-size: 11px; }
.round-arrow { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 50%; color: var(--green-dark); background: #f0f5eb; }
.round-arrow .icon { width: 14px; height: 14px; }

/* ---------- 认证企业 ---------- */
.company-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.company-card { padding: 24px 23px 20px; border: 1px solid #e5eae6; border-radius: 11px; background: white; transition: border-color .2s, transform .2s; }
.company-card:hover { transform: translateY(-3px); border-color: #cdddbf; }
.company-top { display: flex; align-items: flex-start; justify-content: space-between; }
.brand-logo { height: 42px; display: flex; align-items: center; color: #183c32; font-family: Arial, sans-serif; font-size: 25px; font-weight: 800; letter-spacing: -1px; }
.brand-logo.krohne { color: #165ba0; font-size: 22px; letter-spacing: -.5px; }
.brand-logo.evoqua { color: #1685a7; font-size: 23px; font-weight: 600; }
.brand-logo.grundfos { color: #2b5d96; font-size: 20px; }
.verified { display: inline-flex; align-items: center; gap: 3px; padding: 4px 6px; border-radius: 3px; color: #688d1c; background: #f0f6e6; font-size: 9px; }
.verified .icon { width: 11px; height: 11px; }
.company-card h3 { margin-top: 20px; overflow: hidden; color: var(--ink); font-size: 15px; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.company-location { display: flex; align-items: center; gap: 5px; margin-top: 9px; color: #939c97; font-size: 11px; }
.company-location .icon { width: 13px; height: 13px; }
.company-business { min-height: 40px; margin-top: 18px; color: #6e7a74; font-size: 12px; line-height: 1.7; }
.company-tags { display: flex; gap: 7px; margin-top: 17px; }
.company-tags span { padding: 5px 8px; border-radius: 3px; color: #718078; background: #f3f6f4; font-size: 10px; }

/* ---------- 研习社 ---------- */
.learning-grid { display: grid; grid-template-columns: 1.03fr .97fr; gap: 42px; }
.learning-column .section-heading { margin-bottom: 23px; }
.learning-column .section-title { font-size: 25px; }
.expert-list { display: grid; gap: 13px; }
.expert-card { display: flex; align-items: center; gap: 19px; min-height: 120px; padding: 12px 18px 12px 12px; border: 1px solid #e6ebe7; border-radius: 10px; background: white; transition: border-color .2s; }
.expert-card:hover { border-color: #cbdcbf; }
.expert-photo { width: 88px; height: 96px; flex-shrink: 0; overflow: hidden; border-radius: 7px; background: #e6ebe8; }
.expert-photo img { height: 100%; object-fit: cover; }
.expert-info { min-width: 0; flex: 1; }
.expert-name { display: flex; align-items: center; gap: 10px; }
.expert-name h3 { color: var(--ink); font-size: 17px; font-weight: 600; }
.expert-name span { padding: 3px 6px; border-radius: 3px; color: #668a1c; background: #eff6e5; font-size: 9px; }
.expert-role { margin-top: 7px; overflow: hidden; color: #7c8882; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.expert-field { margin-top: 11px; overflow: hidden; color: #4f5e56; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.expert-field b { color: #91a098; font-weight: 400; }
.video-feature { height: 252px; position: relative; overflow: hidden; border-radius: 11px; color: white; background: var(--green-dark); }
.video-feature > img { height: 100%; object-fit: cover; }
.video-feature::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(5,28,22,.87), rgba(5,28,22,.03) 70%); }
.play-button { width: 52px; height: 52px; position: absolute; z-index: 2; left: 50%; top: 42%; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.65); border-radius: 50%; color: var(--green-dark); background: rgba(255,255,255,.9); transform: translate(-50%,-50%); transition: transform .2s, background .2s; }
.play-button:hover { background: var(--green); transform: translate(-50%,-50%) scale(1.07); }
.play-button .icon { width: 19px; height: 19px; margin-left: 3px; fill: currentColor; stroke: none; }
.video-caption { position: absolute; z-index: 2; left: 23px; right: 23px; bottom: 20px; }
.video-caption small { color: var(--green); font-size: 10px; letter-spacing: 1px; }
.video-caption h3 { margin-top: 7px; font-size: 17px; line-height: 1.5; font-weight: 550; }
.video-mini-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.video-mini { display: flex; align-items: center; gap: 12px; padding: 10px; border: 1px solid #e6ebe7; border-radius: 8px; background: white; }
.video-mini-thumb { width: 80px; height: 59px; position: relative; flex-shrink: 0; overflow: hidden; border-radius: 5px; }
.video-mini-thumb img { height: 100%; object-fit: cover; }
.video-mini-thumb .icon { width: 15px; height: 15px; position: absolute; left: 50%; top: 50%; color: white; filter: drop-shadow(0 1px 3px #000); transform: translate(-50%,-50%); }
.video-mini h4 { color: #3d4a44; font-size: 12px; line-height: 1.6; font-weight: 550; }
.video-mini p { margin-top: 5px; color: #9aa39e; font-size: 10px; }

/* ---------- 行业资讯 ---------- */
.news-layout { display: grid; grid-template-columns: 420px 1fr; gap: 42px; }
.news-feature { overflow: hidden; border-radius: 11px; background: white; border: 1px solid #e6ebe7; }
.news-feature-image { height: 220px; overflow: hidden; }
.news-feature-image img { height: 100%; object-fit: cover; transition: transform .4s; }
.news-feature:hover img { transform: scale(1.03); }
.news-feature-body { padding: 22px 23px 24px; }
.news-label { color: #79a21e; font-size: 10px; font-weight: 600; letter-spacing: 1px; }
.news-feature h3 { margin-top: 10px; color: var(--ink); font-size: 19px; line-height: 1.55; font-weight: 600; }
.news-feature p { margin-top: 12px; color: #818c86; font-size: 12px; line-height: 1.8; }
.news-date { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; color: #9aa39e; font-size: 11px; }
.news-list { border-top: 1px solid #dfe5e1; }
.news-item { display: grid; grid-template-columns: 76px 1fr 90px; align-items: center; gap: 20px; min-height: 90px; border-bottom: 1px solid #dfe5e1; }
.news-item-date { color: #a0a9a4; font-family: Arial, sans-serif; font-size: 11px; }
.news-item-date strong { display: block; margin-bottom: 3px; color: #53615a; font-size: 25px; font-weight: 400; }
.news-item-content span { color: #83a43c; font-size: 10px; }
.news-item-content h3 { margin-top: 6px; color: #34413b; font-size: 15px; line-height: 1.5; font-weight: 550; transition: color .2s; }
.news-item:hover h3 { color: var(--green-mid); }
.news-item-source { justify-self: end; color: #a0a9a4; font-size: 11px; }

/* ---------- 底部行动条 ---------- */
.cta-band { margin-top: 78px; padding: 45px 0; color: white; background: var(--green-dark); }
.cta-band .container { display: flex; align-items: center; justify-content: space-between; }
.cta-content { display: flex; align-items: center; gap: 24px; }
.cta-icon { width: 56px; height: 56px; display: grid; place-items: center; border: 1px solid rgba(167,229,46,.35); border-radius: 50%; color: var(--green); }
.cta-icon .icon { width: 27px; height: 27px; }
.cta-content h2 { font-size: 23px; font-weight: 550; }
.cta-content p { margin-top: 8px; color: rgba(255,255,255,.58); font-size: 12px; }
.cta-actions { display: flex; gap: 12px; }
.btn-secondary { height: 42px; padding: 0 20px; display: inline-flex; align-items: center; border: 1px solid rgba(255,255,255,.25); border-radius: 5px; color: white; background: transparent; }
.cta-actions .publish-btn { height: 42px; }

/* ---------- 首页响应式 ---------- */
@media (max-width: 1180px) {
  .hero-note { display: none; }
  .search-shell { width: 100%; }
  .intro-grid { grid-template-columns: 1.05fr .95fr; gap: 42px; }
  .intro-visual { height: 410px; }
  .demand-head, .demand-row { grid-template-columns: minmax(0,1fr) 90px 80px; }
  .demand-head span:nth-child(3), .demand-row .demand-date { display: none; }
  .learning-grid { gap: 25px; }
  .video-mini-list { grid-template-columns: 1fr; }
  .video-mini:nth-child(2) { display: none; }
}
@media (max-width: 900px) {
  .site-header { top: 0; }
  .hero { height: 620px; }
  .hero::after { top: 430px; }
  .hero .container { padding-top: 108px; }
  .hero-brand-en { font-size: 40px; }
  .hero h1 { font-size: 39px; }
  .home-search { margin-top: 58px; padding: 62px 0; }
  .search-shell { width: 100%; padding: 26px 28px 19px; }
  .platform-intro { margin-top: 58px; padding: 60px 0; }
  .intro-grid { grid-template-columns: 1fr; gap: 48px; }
  .intro-visual { height: 390px; }
  .quick-inner { grid-template-columns: repeat(3, 1fr); row-gap: 22px; }
  .quick-item:nth-child(3) { border-right: 0; }
  .quick-item:nth-child(n+4) { display: none; }
  .opportunity-grid { grid-template-columns: 1fr; }
  .matching-card { min-height: 280px; }
  .tech-grid, .company-grid { grid-template-columns: repeat(2, 1fr); }
  .learning-grid, .news-layout { grid-template-columns: 1fr; }
  .video-mini-list { grid-template-columns: 1fr 1fr; }
  .video-mini:nth-child(2) { display: flex; }
}
@media (max-width: 600px) {
  .hero { height: 540px; }
  .hero::after { top: 400px; height: 360px; }
  .hero .container { padding-top: 94px; }
  .hero-brand-en { font-size: 31px; }
  .hero h1 { margin-top: 14px; font-size: 32px; }
  .hero-desc { font-size: 13px; }
  .search-title { margin-bottom: 12px; font-size: 16px; }
  .search-tabs { gap: 16px; margin-bottom: 14px; overflow: hidden; white-space: nowrap; }
  .search-tab { font-size: 11px; }
  .search-box { height: 52px; padding-left: 16px; }
  .search-input { font-size: 12px; }
  .search-clear { display: none; }
  .search-btn { width: 36px; height: 36px; }
  .hot-search { gap: 11px; overflow: hidden; white-space: nowrap; }
  .hot-search button:nth-of-type(n+4) { display: none; }
  .home-search { margin-top: 52px; padding: 52px 0; background: #f2f7f2; }
  .search-shell { padding: 22px 18px 18px; }
  .platform-intro { margin-top: 52px; padding: 52px 0; background: #f2f7f2; }
  .intro-grid { gap: 38px; }
  .intro-title { font-size: 25px; }
  .intro-desc { font-size: 12px; line-height: 1.85; }
  .intro-stats { grid-template-columns: 1fr; gap: 9px; }
  .intro-stat { height: 72px; }
  .intro-visual { height: 285px; }
  .intro-visual-main { width: 88%; height: 72%; }
  .intro-caption { left: 14px; right: 14px; bottom: 12px; }
  .intro-caption strong { font-size: 12px; }
  .quick-inner { padding: 17px 2px; }
  .quick-item { gap: 8px; flex-direction: column; text-align: center; }
  .quick-text small { display: none; }
  .section { padding-top: 58px; }
  .section-white { margin-top: 58px; padding: 55px 0; }
  .section-heading { align-items: flex-start; }
  .heading-left { display: block; }
  .section-title { font-size: 24px; }
  .section-subtitle { display: none; }
  .tabs { display: none; }
  .opportunity-grid { border-radius: 10px; }
  .demand-panel { padding: 8px 16px; }
  .demand-head, .demand-row { grid-template-columns: minmax(0,1fr) 55px; }
  .demand-head span:nth-child(2), .demand-row .demand-meta { display: none; }
  .tech-grid, .company-grid { grid-template-columns: 1fr; }
  .tech-image { height: 210px; }
  .learning-grid { gap: 48px; }
  .video-mini-list { grid-template-columns: 1fr; }
  .video-mini:nth-child(2) { display: none; }
  .news-item { grid-template-columns: 58px 1fr; gap: 13px; }
  .news-item-source { display: none; }
  .cta-band .container { align-items: flex-start; gap: 25px; flex-direction: column; }
  .cta-content { align-items: flex-start; }
  .cta-content h2 { font-size: 20px; }
}