/* ==========================================================================
   cozunet.com · 技术保障总览 css/pages/tech.css
   版式：深色页头 + 数据条 + 监控台网格（大卡+小卡错落+深棕大卡）
         + 每日/每周/每月三栏 + 机房图左文右 + SLA 四项条
   ========================================================================== */

/* ---------- 页头 ---------- */
.thero{background:var(--brown-deep);color:#fff;padding:150px 0 0}
.thero .crumb-light{color:rgba(255,255,255,.6);margin-bottom:22px}
.thero-eyebrow{display:inline-flex;align-items:center;gap:10px;color:rgba(255,255,255,.7);font-size:12.5px;letter-spacing:.32em;margin-bottom:20px}
.thero-eyebrow::before{content:"";width:34px;height:1px;background:rgba(255,255,255,.5)}
.thero-title{color:#fff;margin-bottom:20px;max-width:780px}
.thero-sub{color:rgba(255,255,255,.78);font-size:16px;line-height:2;max-width:640px;padding-bottom:60px}
.thero-strip{border-top:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04)}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:26px 28px}
.strip-item b{font-family:var(--font-serif);font-size:26px;color:#fff;display:block}
.strip-item span{font-size:12.5px;color:rgba(255,255,255,.55);letter-spacing:.08em}
@media (max-width:820px){.strip-in{grid-template-columns:1fr 1fr}}

/* ---------- 监控台网格 ---------- */
.grid-sec{padding:90px 0 30px}
.dash-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:22px;align-items:stretch}
.dash-card{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:32px 30px;display:flex;flex-direction:column;transition:transform .45s var(--ease),box-shadow .45s}
.dash-card:hover{transform:translateY(-7px);box-shadow:var(--shadow)}
.dash-lg{grid-row:span 2;background:var(--paper)}
.dash-deep{background:var(--brown);color:#fff}
.dash-deep h3{color:#fff}
.dash-deep p{color:rgba(255,255,255,.8)}
.dc-no{font-family:var(--font-serif);font-size:13px;letter-spacing:.24em;color:var(--brown-soft);margin-bottom:18px}
.dash-deep .dc-no{color:rgba(255,255,255,.55)}
.dash-card h3{font-size:21px;margin-bottom:10px}
.dash-card p{font-size:14.5px;color:var(--ink-2);line-height:1.9;flex:1;margin-bottom:18px}
.dash-card .arrow-link{font-size:13.5px}
.dash-deep .arrow-link{color:#fff}
@media (max-width:900px){.dash-grid{grid-template-columns:1fr 1fr}.dash-lg{grid-row:auto}}
@media (max-width:600px){.dash-grid{grid-template-columns:1fr}}

/* ---------- 日常三栏 ---------- */
.daily-sec{background:var(--card);padding:90px 0;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.daily-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px}
.daily-item{border-left:3px solid var(--brown);padding:8px 0 8px 26px}
.daily-item b{display:inline-block;font-family:var(--font-serif);font-size:14px;letter-spacing:.2em;color:var(--brown);background:var(--brown-bg);padding:4px 12px;border-radius:999px;margin-bottom:14px}
.daily-item h3{font-size:19px;margin-bottom:10px}
.daily-item p{font-size:14px;color:var(--ink-2);line-height:1.9}
@media (max-width:820px){.daily-grid{grid-template-columns:1fr}}

/* ---------- 机房 ---------- */
.server-sec{padding:90px 0 20px}
.server-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.server-media{overflow:hidden;border-radius:var(--r)}
.server-media img{width:100%;height:380px;object-fit:cover}
.server-copy h2{font-size:26px;margin:14px 0 16px}
.server-copy p{font-size:15px;color:var(--ink-2);line-height:2;margin-bottom:20px}
.server-list{display:grid;gap:10px}
.server-list li{font-size:14px;color:var(--ink-2);padding-left:22px;position:relative}
.server-list li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--brown)}
@media (max-width:900px){.server-wrap{grid-template-columns:1fr}}

/* ---------- SLA ---------- */
.sla-sec{padding:70px 0 20px}
.sla-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;background:var(--card)}
.sla-item{padding:28px 24px;border-right:1px solid var(--line-2)}
.sla-item:last-child{border-right:0}
.sla-item b{display:block;font-family:var(--font-serif);font-size:24px;color:var(--brown);margin-bottom:8px}
.sla-item span{font-size:13px;color:var(--ink-2);line-height:1.7}
@media (max-width:900px){.sla-grid{grid-template-columns:1fr 1fr}.sla-item:nth-child(2){border-right:0}}

/* ---------- FAQ ---------- */
.faq-sec{padding:60px 0 20px}
.faq-main{display:grid;gap:14px;max-width:860px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:22px 26px;transition:border-color .3s}
.faq-item[open]{border-color:var(--brown-soft)}
.faq-item summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;position:relative;padding-right:30px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";position:absolute;right:0;top:0;color:var(--brown-soft);font-family:var(--font-serif);font-size:20px;transition:transform .3s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item p{margin-top:12px;color:var(--ink-2);font-size:14.5px;line-height:1.95}
.faq-item a{color:var(--brown);text-decoration:underline;text-underline-offset:3px}

/* ---------- 联系 CTA ---------- */
.cta{background:var(--brown);padding:96px 0;margin-top:60px}
.cta-in{display:grid;grid-template-columns:1.2fr 1fr;gap:60px;align-items:center}
.cta-eyebrow{color:rgba(255,255,255,.6)}
.cta-eyebrow::before{background:rgba(255,255,255,.4)}
.cta-copy h2{color:#fff;font-size:clamp(26px,3vw,40px);margin:14px 0 18px}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15.5px;line-height:2}
.cta-actions{display:grid;gap:14px;justify-items:start}
.cta-wx{color:rgba(255,255,255,.65);font-size:14px;letter-spacing:.1em;padding-left:6px}
@media (max-width:820px){.cta-in{grid-template-columns:1fr;gap:34px}}

/* ---------- shared block: exp/local/more/mis/band ---------- */
.exp-sec{padding:70px 0 20px}
.exp-list{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.exp-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:24px 26px;transition:transform .4s var(--ease),box-shadow .4s}
.exp-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.exp-item b{font-family:var(--font-serif);color:var(--brown);display:block;margin-bottom:8px;font-size:14px}
.exp-item h3{font-size:17px;margin-bottom:6px}
.exp-item p{font-size:14px;color:var(--ink-2);line-height:1.9}
.local-sec{background:var(--card);padding:70px 0;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.local-wrap{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.local-list{display:grid;gap:12px}
.local-list li{background:var(--paper);border-left:3px solid var(--brown);border-radius:var(--r-sm);padding:14px 20px;display:flex;gap:14px;align-items:baseline}
.local-list b{color:var(--brown);flex:none;width:90px;font-size:14px}
.local-list span{font-size:13.5px;color:var(--ink-2)}
.more-sec{padding:70px 0 20px}
.more-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.more-card{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 24px;transition:transform .4s var(--ease),box-shadow .4s}
.more-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.mc-no{font-family:var(--font-serif);font-size:13px;color:var(--brown-soft)}
.more-card h3{font-size:17px;margin:10px 0 8px}
.more-card p{font-size:13.5px;color:var(--ink-2);line-height:1.85}
.mis-sec{padding:50px 0 20px}
.mis-list{display:grid;gap:12px;max-width:860px;margin:0 auto}
.mis-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:20px 26px}
.mis-item summary{cursor:pointer;font-weight:600;list-style:none;position:relative;padding-right:28px}
.mis-item summary::-webkit-details-marker{display:none}
.mis-item summary::after{content:"+";position:absolute;right:0;top:0;color:var(--brown-soft);font-family:var(--font-serif);font-size:18px;transition:transform .3s}
.mis-item[open] summary::after{transform:rotate(45deg)}
.mis-item p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.9}
.band-sec{background:var(--brown);padding:60px 0;margin-top:40px}
.band-in{text-align:center}
.band-quote{font-family:var(--font-serif);font-size:clamp(18px,2.4vw,26px);color:#fff;line-height:1.8;max-width:760px;margin:0 auto 14px}
.band-from{color:rgba(255,255,255,.6);font-size:13px;letter-spacing:.1em}
@media (max-width:820px){.exp-list,.more-grid,.local-wrap{grid-template-columns:1fr}}

/* ---------- block2: stats/week/pic/faq2/strip/darkcard ---------- */
.stats-band{background:var(--brown-deep);color:#fff;padding:40px 0}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat-cell b{display:block;font-family:var(--font-serif);font-size:clamp(26px,3vw,38px);line-height:1;color:#fff}
.stat-cell em{font-style:normal;font-size:16px;color:rgba(255,255,255,.55);margin-left:4px}
.stat-cell span{display:block;margin-top:8px;font-size:13px;color:rgba(255,255,255,.65)}
@media (max-width:820px){.stats-in{grid-template-columns:1fr 1fr}}
.week-sec{padding:80px 0 20px}
.week-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.week-item{display:flex;gap:16px;background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:18px 22px;align-items:flex-start;transition:border-color .3s}
.week-item:hover{border-color:var(--brown-soft)}
.week-item>b{flex:none;font-family:var(--font-serif);font-size:15px;color:var(--brown)}
.week-item h3{font-size:15.5px;margin-bottom:4px}
.week-item p{font-size:13px;color:var(--ink-2);line-height:1.8}
@media (max-width:820px){.week-list{grid-template-columns:1fr}}
.pic-sec{padding:70px 0 20px}
.pic-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.pic-fig{margin:0}
.pic-fig img{width:100%;border-radius:var(--r);box-shadow:var(--shadow-sm)}
.pic-copy h2{font-size:26px;margin:12px 0 16px}
.pic-copy p{font-size:15px;color:var(--ink-2);line-height:2;margin-bottom:14px}
@media (max-width:900px){.pic-wrap{grid-template-columns:1fr;gap:30px}}
.faq2-sec{padding:60px 0 20px}
.faq2-main{display:grid;gap:12px;max-width:860px;margin:0 auto}
.faq2-item{background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:18px 26px}
.faq2-item summary{cursor:pointer;font-weight:600;font-size:15.5px;list-style:none;position:relative;padding-right:26px}
.faq2-item summary::-webkit-details-marker{display:none}
.faq2-item summary::after{content:"+";position:absolute;right:0;top:0;color:var(--brown-soft);font-family:var(--font-serif);font-size:18px;transition:transform .3s}
.faq2-item[open] summary::after{transform:rotate(45deg)}
.faq2-item p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.9}
.faq2-item a{color:var(--brown);text-decoration:underline;text-underline-offset:3px}
.strip-sec{padding:50px 0 20px}
.strip-in{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;background:var(--brown-bg);border:1px solid var(--line-2);border-radius:var(--r);padding:26px 30px}
.strip-cell b{display:block;font-size:12.5px;letter-spacing:.2em;color:var(--brown-soft);margin-bottom:6px}
.strip-cell span{font-size:15px;color:var(--ink-1);font-weight:600}
.strip-arrow{color:var(--brown-soft);font-size:20px}
.dark-card-sec{padding:40px 0 20px}
.dark-card-in{background:var(--brown);color:#fff;border-radius:var(--r);padding:44px 40px;text-align:center}
.dc-quote{font-family:var(--font-serif);font-size:clamp(17px,2.2vw,23px);line-height:1.9;max-width:680px;margin:0 auto 14px}
.dc-from{color:rgba(255,255,255,.6);font-size:13px;letter-spacing:.1em}
.btn-primary{background:var(--brown);color:#fff}
.btn-primary:hover{background:var(--brown-deep)}
.btn-lg{padding:15px 34px;font-size:15.5px}

/* ---------- block3: work/docs/price2/endstrip ---------- */
.work-sec{padding:70px 0 20px}
.work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.work-card{margin:0;background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);overflow:hidden;transition:transform .4s var(--ease),box-shadow .4s}
.work-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.work-card img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.work-card figcaption{padding:16px 20px;display:flex;flex-direction:column;gap:4px}
.work-card b{font-size:15.5px}
.work-card span{font-size:13px;color:var(--ink-2)}
@media (max-width:820px){.work-grid{grid-template-columns:1fr}}
.docs-sec{padding:70px 0 20px}
.docs-wrap{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;align-items:center}
.docs-list{display:grid;gap:10px}
.docs-list li{display:flex;gap:16px;background:var(--card);border:1px solid var(--line-2);border-radius:var(--r);padding:14px 22px;align-items:baseline}
.docs-list b{flex:none;color:var(--brown);font-size:14.5px;min-width:110px}
.docs-list span{font-size:13.5px;color:var(--ink-2)}
@media (max-width:820px){.docs-wrap{grid-template-columns:1fr}}
.price2-sec{padding:60px 0 20px}
.price2-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:880px;margin:0 auto}
.price2-cell{background:var(--card);border:1px solid var(--line-2);border-top:3px solid var(--brown);border-radius:var(--r);padding:22px 26px;text-align:center}
.price2-cell b{display:block;font-family:var(--font-serif);font-size:19px;color:var(--brown);margin-bottom:8px}
.price2-cell span{font-size:13.5px;color:var(--ink-2)}
.end-strip{background:var(--brown-deep);color:#fff;padding:56px 0;margin-top:50px}
.end-in{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.end-in h2{color:#fff;font-size:clamp(20px,2.4vw,28px);margin-bottom:8px}
.end-in p{color:rgba(255,255,255,.7);font-size:14.5px}