/* ==========================================================================
   内页组件 · 对齐 givegroup.cn 服务页版式
   依赖 site.css 变量；仅内页引用
   ========================================================================== */

/* ---------- 首屏内的面包屑与动作 ---------- */
.sv-crumb {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: var(--muted); margin-bottom: clamp(26px, 3.2vw, 48px);
}
.sv-crumb a { color: #6b6b6e; }
.sv-crumb a:hover { color: var(--ink); }
.sv-crumb .sep { width: 1px; height: 12px; background: rgba(29, 29, 31, .22); flex: none; }

.sv-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; margin-top: clamp(26px, 3vw, 38px); }

/* 品牌蓝圆形箭头按钮（对标站 .more） */
.sv-btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 6px 6px 6px 24px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .9);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  color: var(--ink); font-size: 15px; font-weight: 500;
  box-shadow: 0 6px 20px -14px rgba(0, 0, 0, .5);
  transition: background-color .3s ease, color .3s ease, gap .3s ease;
}
.sv-btn svg { display: block; flex: none; transition: transform .4s ease; }
.sv-btn:hover { background: #fff; color: var(--ink); gap: 20px; }
.sv-btn:hover svg { transform: rotate(90deg); }

.sv-btn--line {
  padding: 0 0 4px; border-radius: 0; background: none; box-shadow: none;
  border-bottom: 1px solid rgba(29, 29, 31, .3); font-size: 14.5px;
}
.sv-btn--line:hover { background: none; border-color: var(--accent); color: var(--accent); gap: 14px; }

/* ---------- 事实条（对标站客户 logo 条的位置） ---------- */
.sv-facts { background: #fff; border-bottom: 1px solid var(--line); }
.sv-facts-inner { max-width: 1560px; margin: 0 auto; padding-inline: clamp(20px, 4vw, 56px); }
.sv-facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.sv-fact {
  padding: clamp(26px, 3vw, 42px) 0;
  border-right: 1px solid var(--line);
}
.sv-fact:not(:first-child) { padding-left: clamp(18px, 2.4vw, 40px); }
.sv-fact:last-child { border-right: 0; }
.sv-fact dt { font-size: 12px; letter-spacing: .08em; color: var(--muted); margin-bottom: 12px; }
.sv-fact dd { margin: 0; font-size: clamp(1.3rem, .9rem + .95vw, 1.95rem); font-weight: 500; letter-spacing: -.03em; line-height: 1.1; color: var(--ink); }
.sv-fact dd span { font-size: .52em; font-weight: 400; color: var(--muted); margin-left: 3px; }
.sv-facts-note {
  position: relative; text-align: center;
  padding: 16px 0 18px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}
.sv-facts-note::before {
  content: ""; position: absolute; left: 50%; top: -1px; width: 64px; height: 1px;
  margin-left: -32px; background: var(--accent);
}

/* ---------- 区块骨架 ---------- */
.sv-band { padding: clamp(54px, 6.4vw, 100px) clamp(20px, 4vw, 56px); }
.sv-band--soft { background: var(--soft); }
.sv-band-inner { max-width: 1560px; margin: 0 auto; }
.sv-head { max-width: 860px; margin-bottom: clamp(32px, 3.6vw, 52px); }
.sv-head h2 {
  font-size: clamp(2.2rem, 1.3rem + 2.6vw, 3.1rem);
  font-weight: 500; letter-spacing: -.04em; line-height: 1.22;
  /* 窄屏避免「说清 / 楚」这类把词拆开的孤字断行；不影响宽屏单行排版 */
  text-wrap: balance;
}
.sv-head p { margin-top: 16px; color: var(--muted); font-size: 16px; line-height: 1.9; }
/* 中文没有词边界，窄屏会把「说清楚」拆成「说清 / 楚」；把要连读的词包起来即可 */
.nw { white-space: nowrap; }

/* ---------- 适用场景 ---------- */
.sv-scene { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(14px, 1.5vw, 20px); }
.sv-scene-item {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: clamp(24px, 2.6vw, 34px);
  transition: border-color .3s ease, transform .3s ease;
}
.sv-scene-item:hover { border-color: var(--line-2); transform: translateY(-2px); }
.sv-scene-item .n { font-size: 11.5px; font-weight: 600; letter-spacing: .14em; color: var(--accent); }
.sv-scene-item h3 { font-size: clamp(1.02rem, .92rem + .35vw, 1.2rem); font-weight: 500; margin: 12px 0 10px; }
.sv-scene-item p { font-size: 14.5px; line-height: 1.85; color: #66666b; }
.sv-scene-note {
  margin-top: clamp(24px, 3vw, 36px); padding-left: 18px;
  border-left: 2px solid var(--accent);
  font-size: 14.5px; line-height: 1.9; color: var(--muted); max-width: 72em;
}

/* ---------- 交付 / 流程 ---------- */
.sv-flow { position: relative; display: grid; grid-template-columns: repeat(6, 1fr); gap: clamp(12px, 1.5vw, 22px); }
.sv-flow::before {
  content: ""; position: absolute; left: 0; right: 0; top: 18px; height: 1px; background: #e0e2e4;
}
.sv-step { position: relative; }
.sv-step .num {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1.5px solid #e0e2e4; background: #fff;
  display: grid; place-items: center;
  font-size: 13px; color: var(--ink); font-variant-numeric: tabular-nums;
  transition: background-color .35s ease, border-color .35s ease, color .35s ease;
}
.sv-step:hover .num { background: var(--accent); border-color: var(--accent); color: #fff; }
.sv-step h3 { font-size: 16.5px; font-weight: 500; margin: 24px 0 10px; }
.sv-step p { font-size: 14px; line-height: 1.8; color: #6a6a6f; }
.sv-flow-note {
  margin-top: clamp(30px, 3.4vw, 44px); padding-top: 22px; border-top: 1px solid var(--line);
  font-size: 14.5px; line-height: 1.85; color: var(--muted); max-width: 76em;
}
.sv-flow-note b { color: var(--ink); font-weight: 500; }

/* ---------- 价格与周期 ---------- */
.sv-price { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 1.5vw, 20px); }
.sv-price-item {
  background: #151619; color: #fff; border-radius: 18px;
  padding: clamp(26px, 2.8vw, 38px);
  display: flex; flex-direction: column;
}
.sv-price-item .k { font-size: 12px; letter-spacing: .1em; color: rgba(255, 255, 255, .48); }
.sv-price-item .v {
  margin-top: 16px; font-size: clamp(1.45rem, 1rem + 1.15vw, 2.1rem);
  font-weight: 500; letter-spacing: -.03em; line-height: 1.15; color: #fff;
}
.sv-price-item .v span { font-size: .5em; font-weight: 400; color: rgba(255, 255, 255, .55); margin-left: 4px; }
.sv-price-item .s { margin-top: auto; padding-top: 24px; font-size: 13.5px; line-height: 1.75; color: rgba(255, 255, 255, .56); }
.sv-price-item--accent { background: #1d1e22; border: 1px solid rgba(0, 75, 200, .55); }
.sv-price-item--accent .k { color: var(--accent); }
.sv-price-item--accent .s { color: rgba(255, 255, 255, .62); }

.sv-prose { max-width: 900px; margin-top: clamp(34px, 4vw, 52px); }
.sv-prose p { font-size: 15.5px; line-height: 2; color: #5a5a5f; margin-bottom: 16px; }
.sv-prose p:last-child { margin-bottom: 0; }

/* ---------- 案例卡 ---------- */
.sv-cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 2vw, 26px); }
.sv-case {
  display: flex; flex-direction: column;
  background: #fff; border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  transition: border-color .3s ease, transform .3s ease;
}
.sv-case:hover { border-color: var(--line-2); transform: translateY(-3px); }
.sv-case .pic { margin: 0; aspect-ratio: 4 / 3.7; overflow: hidden; background: #f4f7fc; }
.sv-case .pic .ui { transition: transform 1s cubic-bezier(.2, .6, .2, 1); }
.sv-case:hover .pic .ui { transform: scale(1.012); }
.sv-case .txt { padding: clamp(20px, 2.2vw, 28px); display: flex; flex-direction: column; flex: 1; }
.sv-case .tag { font-size: 11.5px; letter-spacing: .08em; color: var(--accent); }
.sv-case h3 { margin: 10px 0 10px; font-size: clamp(1.02rem, .92rem + .35vw, 1.2rem); font-weight: 500; }
.sv-case p { font-size: 14px; line-height: 1.85; color: #6a6a6f; }
/* 功能清单标签：让卡片右侧/下方不至于只剩两行文字 */
.sv-case-works { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.sv-case-works li {
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--soft);
  font-size: 12px;
  line-height: 1.5;
  color: #5a5a5f;
}
.sv-case .more {
  margin-top: auto; padding-top: 18px;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; color: var(--ink);
}
.sv-case .more:hover { color: var(--accent); }
/* 单案例：图文左右并排，界面不至于被压成一条横幅 */
.sv-cases--one { grid-template-columns: 1fr; }
.sv-cases--one .sv-case { display: grid; grid-template-columns: 1.02fr 1fr; }
.sv-cases--one .pic { aspect-ratio: 4 / 3.7; }
.sv-cases--one .txt { justify-content: center; }

/* ---------- FAQ（编号 + 折叠） ---------- */
.sv-faq { display: grid; grid-template-columns: minmax(0, 400px) 1fr; gap: clamp(30px, 5vw, 80px); align-items: start; }
.sv-faq-left { position: sticky; top: calc(var(--hd) + 32px); }
.sv-faq-left h2 { font-size: clamp(2.2rem, 1.3rem + 2.6vw, 3.1rem); font-weight: 500; letter-spacing: -.04em; line-height: 1.28; }
.sv-faq-left p { margin-top: 16px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.sv-faq-list { counter-reset: q; border-top: 1px solid var(--line-2); }
.sv-faq-list details { border-bottom: 1px solid var(--line-2); }
.sv-faq-list summary {
  position: relative; cursor: pointer; list-style: none;
  padding: 24px 46px 24px 0;
  font-size: clamp(15px, .9rem + .3vw, 17px); font-weight: 500; color: var(--ink); line-height: 1.6;
}
.sv-faq-list summary::-webkit-details-marker { display: none; }
.sv-faq-list summary::before {
  counter-increment: q; content: counter(q) ".";
  color: var(--accent); margin-right: 10px; font-variant-numeric: tabular-nums;
}
.sv-faq-list summary::after {
  content: "+"; position: absolute; right: 4px; top: 24px;
  font-size: 20px; font-weight: 300; color: var(--muted); line-height: 1;
  transition: color .2s ease;
}
.sv-faq-list details[open] summary::after { content: "–"; color: var(--accent); }
.sv-faq-list details > p {
  padding: 0 46px 26px 0; font-size: 15px; line-height: 1.95; color: #5a5a5f; max-width: 74ch;
}

/* ---------- 相关链接 ---------- */
.sv-related {
  display: flex; flex-wrap: wrap; gap: 10px 26px;
  margin-top: clamp(30px, 3.4vw, 44px); padding-top: 22px; border-top: 1px solid var(--line);
  font-size: 14px; color: var(--muted);
}
.sv-related a { color: var(--ink); border-bottom: 1px solid var(--line-2); padding-bottom: 2px; }
.sv-related a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------- 三列技术/能力卡 ---------- */
.sv-scene--3 { grid-template-columns: repeat(3, 1fr); }
.sv-scene-item .k { font-size: 11.5px; font-weight: 600; letter-spacing: .14em; color: var(--accent); }

/* ---------- 勾选清单 ---------- */
.sv-checks { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 44px; }
.sv-checks li {
  display: flex; gap: 14px;
  padding: 16px 0; border-bottom: 1px solid var(--line);
  font-size: 15px; line-height: 1.8; color: #4f4f54;
}
.sv-checks li::before {
  content: ""; flex: none; width: 12px; height: 7px; margin-top: 10px;
  border-left: 1.5px solid var(--accent); border-bottom: 1.5px solid var(--accent);
  transform: rotate(-45deg);
}
.sv-checks b { color: var(--ink); font-weight: 500; }

/* ---------- 自查结果面板（geo 页右侧，与 .sv-scene-item 深色首卡同一套语言） ---------- */
.geo-report {
  background: #14151a; color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(24px, 2.8vw, 36px);
}
.geo-report-k {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11.5px; letter-spacing: .16em; color: #8fb4ff;
}
.geo-report-k::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .7; }
.geo-report ul { list-style: none; margin: 22px 0 0; padding: 0; border-top: 1px solid rgba(255, 255, 255, .14); }
.geo-report li {
  display: flex; align-items: baseline; gap: 14px;
  padding: 15px 0; border-bottom: 1px solid rgba(255, 255, 255, .1);
}
.geo-report li b {
  flex: none; min-width: 2.6em;
  font-size: clamp(1.5rem, 1.1rem + 1vw, 1.95rem); font-weight: 500;
  letter-spacing: -.04em; line-height: 1;
  color: #6f9cff; font-variant-numeric: tabular-nums;
}
.geo-report li span { font-size: 13.5px; line-height: 1.7; color: rgba(255, 255, 255, .6); }
.geo-report p { margin-top: 18px; font-size: 12.5px; line-height: 1.8; color: rgba(255, 255, 255, .42); }

/* ---------- 两层结构对比 ---------- */
.sv-compare { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(14px, 2vw, 24px); }
.sv-compare-col {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: clamp(24px, 2.8vw, 36px);
}
.sv-compare-col .k { font-size: 12px; letter-spacing: .1em; color: var(--muted); }
.sv-compare-col h3 { margin: 14px 0 16px; font-size: clamp(1.05rem, .95rem + .4vw, 1.28rem); font-weight: 500; }
.sv-compare-col ol { list-style: none; padding: 0; counter-reset: c; }
.sv-compare-col li {
  position: relative; padding: 13px 0 13px 34px;
  border-top: 1px solid var(--line);
  font-size: 14.5px; line-height: 1.6; color: #6a6a6f;
}
.sv-compare-col li::before {
  counter-increment: c; content: counter(c);
  position: absolute; left: 0; top: 13px;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--soft); color: var(--muted);
  font-size: 11.5px; display: grid; place-items: center;
  font-variant-numeric: tabular-nums;
}
.sv-compare-col--us { background: #151619; border-color: #151619; }
.sv-compare-col--us .k { color: rgba(255, 255, 255, .5); }
.sv-compare-col--us h3 { color: #fff; }
.sv-compare-col--us li { color: rgba(255, 255, 255, .74); border-color: rgba(255, 255, 255, .14); }
.sv-compare-col--us li::before { background: var(--accent); color: #fff; }

/* 正文段落紧跟对比卡时补一点间隙（app 归责链路块） */
.sv-prose + .sv-compare { margin-top: clamp(24px, 2.6vw, 34px); }

/* ---------- 响应式 ---------- */
@media (max-width: 1180px) {
  .sv-facts-grid { grid-template-columns: repeat(2, 1fr); }
  .sv-fact:nth-child(2) { border-right: 0; }
  .sv-fact:nth-child(3) { padding-left: 0; }
  .sv-fact:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .sv-flow { grid-template-columns: repeat(3, 1fr); }
  .sv-flow::before { display: none; }
  .sv-step .num { background: var(--soft); }
  .sv-price { grid-template-columns: 1fr; }
  .sv-price-item .s { margin-top: 16px; padding-top: 0; }
}

@media (max-width: 900px) {
  .sv-band { padding: 56px 18px; }
  .sv-scene, .sv-scene--3, .sv-cases { grid-template-columns: 1fr; }
  .sv-compare { grid-template-columns: 1fr; }
  .sv-faq { grid-template-columns: 1fr; gap: 28px; }
  .sv-faq-left { position: static; }
  .sv-flow { grid-template-columns: repeat(2, 1fr); gap: 24px 16px; }
  .sv-step .num { width: 34px; height: 34px; font-size: 12.5px; }
  .sv-step h3 { margin-top: 16px; }
}

@media (max-width: 560px) {
  .sv-facts-grid { grid-template-columns: 1fr 1fr; }
  .sv-fact { border-right: 0; padding: 18px 0; }
  .sv-fact:not(:first-child) { padding-left: 0; }
  .sv-fact:nth-child(even) { padding-left: 16px; border-left: 1px solid var(--line); }
  .sv-fact:nth-child(odd) { padding-right: 14px; }
  .sv-fact:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .sv-checks { grid-template-columns: 1fr; }
  .sv-flow { grid-template-columns: 1fr; }
  .sv-step { display: grid; grid-template-columns: 38px 1fr; column-gap: 14px; }
  .sv-step .num { grid-row: span 2; }
  .sv-step h3 { margin: 6px 0 6px; }
  .sv-faq-list summary { padding-right: 36px; }
  .sv-faq-list details > p { padding-right: 10px; }
}

/* ==========================================================================
   图文并排（服务页「界面与模块」）
   左侧图、右侧模块列表，用来替代成段的说明文字
   ========================================================================== */
.sv-media {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(24px, 4vw, 60px);
  align-items: center;
}
.sv-media-pic {
  margin: 0; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--soft); border: 1px solid var(--line);
}
.sv-media-pic img {
  display: block; width: 100%; height: auto;
  transition: transform 1.4s cubic-bezier(.2, .6, .2, 1);
}
.sv-media:hover .sv-media-pic img { transform: scale(1.035); }

/* 图右文左：与 .sv-media 同构，仅调换先后 */
.sv-media--rev > .sv-media-pic { order: 2; }
/* 图宽版（about 技术栈区块）：列宽沿用默认的 1.02 : .98（本就接近等宽），
   问题不在「宽」而在「矮」——图 534×357 摆在 555 高的文字列旁，右栏上下各空 100。
   所以让图区撑满行高、按中心裁切左右（原图 1.5:1 → 显示约 1.04:1，主体是居中的玻璃柱，不受影响）。 */
@media (min-width: 1101px) {
  .sv-media--picw { align-items: stretch; }
  .sv-media--picw > .sv-media-pic { display: flex; }
  .sv-media--picw .sv-media-pic img { height: 100%; object-fit: cover; object-position: center; }
}
/* 1100 以下两栏都挤：技术栈卡片要 540 才不碎行、图要 480 才不显小，两者无法同时满足，塌单列 */
@media (max-width: 1100px) {
  .sv-media--picw { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .sv-media--picw > .sv-media-pic { order: 0; max-width: 720px; margin-inline: auto; }
}
/* 双栏内的正文块：去掉段落块自带的顶部留白与最大宽度，间距交给网格 */
.sv-media > .sv-prose { margin-top: 0; max-width: none; }
/* 双栏内的勾选清单：列宽变窄后两列挤，退回单列 */
.sv-media > .sv-checks { grid-template-columns: 1fr; }
/* 技术栈卡进双栏后列宽变窄，3 列改 2 列（窄屏仍走 .steps 自己的规则） */
@media (min-width: 901px) {
  .sv-media .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 通栏插图：给「卡片组 / 表格 / 流程」作分区主视觉 */
.band-figure {
  margin: 0 auto clamp(28px, 3.2vw, 44px);
  /* 两档宽度，按素材比例选：
     1.6:1 素材用 896px（约 560 高）；2:1 素材用 --wide 的 1328px（664 高），
     与下方 1328 宽表格左右对齐。8:3 会把主体切掉，已弃用。 */
  max-width: 896px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--soft);
  border: 1px solid var(--line);
}
.band-figure--wide { max-width: 1328px; }
.band-figure img { display: block; width: 100%; height: auto; }

/* 窄屏时 .sv-media 已塌成单列，图回到正文上方 */
@media (max-width: 900px) {
  .sv-media--rev > .sv-media-pic { order: 0; }
}

.sv-mod { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-2); }
.sv-mod li {
  display: grid; grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 14px; row-gap: 4px;
  padding: 15px 0; border-bottom: 1px solid var(--line);
}
.sv-mod .no {
  grid-row: span 2; padding-top: 3px;
  font-size: 11.5px; letter-spacing: .1em; color: var(--muted-2);
  font-variant-numeric: tabular-nums;
}
.sv-mod li:hover .no { color: var(--accent); }
.sv-mod h3 { margin: 0; font-size: 15.5px; font-weight: 500; letter-spacing: -.01em; }
.sv-mod p { margin: 0; font-size: 13.5px; line-height: 1.8; color: #6a6a6f; }

/* ==========================================================================
   还做过：项目类型卡（案例页 / 服务页 / 首页）
   ========================================================================== */
.mw-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(12px, 1.4vw, 18px);
}
/* 条目少于 3 条时用两列，避免末行留空 */
.mw-grid--2 { grid-template-columns: repeat(2, 1fr); }
.mw-item {
  background: #fff; border: 1px solid var(--line); border-radius: 16px;
  padding: clamp(18px, 2vw, 24px);
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.mw-item:hover {
  border-color: rgba(0, 75, 200, .34);
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.mw-kicker { font-size: 11px; letter-spacing: .1em; color: var(--accent); }
.mw-item h3 { margin: 10px 0 14px; font-size: 15px; font-weight: 500; line-height: 1.5; letter-spacing: -.01em; }
.mw-item ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.mw-item li {
  font-size: 11.5px; color: #6b6b70;
  background: var(--soft); border-radius: 999px; padding: 3px 9px;
}
.mw-note {
  margin-top: clamp(18px, 2.2vw, 26px);
  font-size: 13px; line-height: 1.85; color: var(--muted);
}

/* ==========================================================================
   时间轴（关于页）
   ========================================================================== */
.tl-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .52fr);
  gap: clamp(28px, 4.4vw, 68px);
  align-items: start;
}
.tl { list-style: none; margin: 0; padding: 0; position: relative; }
.tl::before {
  content: ""; position: absolute; left: 7px; top: 10px; bottom: 12px; width: 1px;
  background: linear-gradient(180deg, var(--accent) 0%, rgba(0, 75, 200, .26) 30%, var(--line-2) 100%);
}
.tl-item { position: relative; padding: 0 0 clamp(26px, 3vw, 38px) 38px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: 1px; top: 6px;
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; border: 1.5px solid var(--line-2);
  transition: border-color .35s ease, box-shadow .35s ease, background-color .35s ease;
}
.tl-item:hover::before,
.tl-item:first-child::before {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(0, 75, 200, .11);
}
.tl-year {
  display: block; font-size: 12.5px; font-weight: 600; letter-spacing: .12em;
  color: var(--accent); font-variant-numeric: tabular-nums;
}
.tl-item h3 {
  margin: 9px 0 10px; font-size: clamp(1.06rem, .96rem + .4vw, 1.3rem);
  font-weight: 500; letter-spacing: -.02em;
}
.tl-item p { font-size: 14.5px; line-height: 1.92; color: #5f6066; max-width: 46em; }
.tl-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tl-tags span {
  padding: 5px 11px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff;
  font-size: 12px; color: #6b6b70;
}
.tl-aside { position: sticky; top: calc(var(--hd) + 36px); }
.tl-aside figure { margin: 0; }
.tl-aside img {
  display: block; width: 100%; height: auto;
  border-radius: var(--radius-lg); background: var(--soft);
}
.tl-aside figcaption { margin-top: 14px; font-size: 13px; line-height: 1.75; color: var(--muted); }
.tl-stats { margin: 24px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.tl-stats > div { padding: 16px 18px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.tl-stats dt { font-size: 11.5px; letter-spacing: .06em; color: var(--muted); }
.tl-stats dd { margin: 7px 0 0; font-size: clamp(1.1rem, .85rem + .6vw, 1.45rem); font-weight: 500; letter-spacing: -.03em; }

@media (max-width: 900px) {
  .sv-cases--one .sv-case { display: flex; }
  .mw-grid, .mw-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .sv-media { grid-template-columns: 1fr; gap: 28px; }
  .tl-layout { grid-template-columns: 1fr; gap: 30px; }
  .tl-aside { position: static; }
  .tl-aside figure { max-width: 420px; }
  .tl-stats { grid-template-columns: 1fr 1fr 1fr 1fr; }
}

@media (max-width: 560px) {
  .mw-grid, .mw-grid--2 { grid-template-columns: 1fr; }
  .sv-mod li { grid-template-columns: 32px minmax(0, 1fr); column-gap: 10px; }
  .tl-stats { grid-template-columns: 1fr 1fr; }
}

/* ==========================================================================
   版块节奏：区块序号 + 宽窄错落的网格
   ========================================================================== */
body { counter-reset: sv-sec; }
.sv-band { counter-increment: sv-sec; }
.sv-band-inner { position: relative; }

/* 描边大号序号：贴在区块右上角，不抢内容 */
.sv-band-inner::after {
  content: "0" counter(sv-sec);
  position: absolute; right: 0; top: -18px;
  font-size: clamp(64px, 7vw, 116px);
  font-weight: 500; line-height: 1; letter-spacing: -.06em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(29, 29, 31, .11);
  pointer-events: none; user-select: none;
}
.sv-band--soft .sv-band-inner::after { -webkit-text-stroke-color: rgba(29, 29, 31, .14); }
@media (max-width: 900px) { .sv-band-inner::after { display: none; } }

/* 适用场景：一条深色整幅 + 三张小卡，破掉四宫格的平 */
.sv-scene { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sv-scene-item:first-child { grid-column: span 2; }
.sv-scene-item:last-child { grid-column: span 2; }
/* 5 张时最后一张回到单格，刚好填满三列 */
.sv-scene-item:nth-child(5):last-child { grid-column: span 1; }
/* 3 张时第二行整幅 */
.sv-scene-item:nth-child(3):last-child { grid-column: span 3; }
.sv-scene-item:first-child {
  background: #14151a; border-color: #14151a;
}
.sv-scene-item:first-child .n { color: #8fb4ff; }
.sv-scene-item:first-child h3 {
  color: #fff; margin: 14px 0 12px;
  font-size: clamp(1.3rem, 1rem + .85vw, 1.78rem); letter-spacing: -.03em;
}
.sv-scene-item:first-child p { color: rgba(255, 255, 255, .6); max-width: 62ch; font-size: 15px; }
.sv-scene-item:first-child:hover { transform: none; border-color: #14151a; }

/* 图文块：图片悬停缓慢推近 */
.sv-media-pic { overflow: hidden; border-radius: var(--radius-lg); }
.sv-media-pic img { transition: transform 1.2s cubic-bezier(.2, .6, .2, 1); }
.sv-media-pic:hover img { transform: scale(1.028); }

/* ==========================================================================
   界面截图走廊：深色整幅，六屏横向缓慢滚动，悬停停住
   ========================================================================== */
.shot-band {
  position: relative; overflow: hidden;
  background: linear-gradient(150deg, #101725 0%, #0a0f19 58%, #0d1421 100%);
  color: #fff;
}
.shot-band::before,
.shot-band::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: clamp(40px, 8vw, 120px);
  z-index: 2; pointer-events: none;
}
.shot-band::before { left: 0; background: linear-gradient(90deg, #0b1019 0%, rgba(11, 16, 25, 0) 100%); }
.shot-band::after { right: 0; background: linear-gradient(270deg, #0b1019 0%, rgba(11, 16, 25, 0) 100%); }

.rb-head {
  position: relative; z-index: 3;
  max-width: 1560px; margin: 0 auto;
  padding: clamp(44px, 5vw, 72px) clamp(20px, 4vw, 56px) clamp(20px, 2.4vw, 32px);
  display: flex; align-items: flex-end; justify-content: space-between; gap: 32px;
}
.rb-head h2 {
  margin-top: 12px;
  font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.5rem);
  font-weight: 500; letter-spacing: -.04em; line-height: 1.24; color: #fff;
}
.rb-head p { margin-top: 14px; max-width: 46em; font-size: 14.5px; line-height: 1.85; color: rgba(255, 255, 255, .55); }
.rb-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase; color: #7ea6ff;
}
.rb-kicker::before { content: ""; width: 22px; height: 1px; background: currentColor; opacity: .7; }
.rb-more {
  flex: 0 0 auto; padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, .28);
  font-size: 14px; color: #fff; white-space: nowrap;
}
.rb-more:hover { color: #9dbcff; border-color: #9dbcff; }

.shot-rail { display: flex; width: max-content; padding-bottom: clamp(44px, 5vw, 70px); }
.rail-group { display: flex; gap: clamp(12px, 1.4vw, 20px); padding-right: clamp(12px, 1.4vw, 20px); }
.shot-rail img {
  display: block;
  width: clamp(148px, 12.6vw, 190px); height: auto;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, .95);
  transition: transform .5s cubic-bezier(.2, .6, .2, 1);
}
.shot-rail img:hover { transform: translateY(-8px); }

@media (prefers-reduced-motion: no-preference) {
  .shot-rail { animation: rail-run 52s linear infinite; }
  .shot-band:hover .shot-rail { animation-play-state: paused; }
  @keyframes rail-run {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
  }
}

/* ==========================================================================
   截图三宫格：深色底 + 圆角截图，用在关于页
   ========================================================================== */
.shot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(14px, 1.6vw, 22px); }
.shot-grid figure { margin: 0; }
.shot-grid .box {
  display: grid; place-items: center;
  padding: clamp(18px, 2vw, 28px) 0;
  border-radius: 18px;
  background: radial-gradient(110% 100% at 50% 0%, #1d2942 0%, #0c111b 72%);
  overflow: hidden;
}
.shot-grid img {
  width: auto; height: clamp(240px, 26vw, 330px);
  border-radius: 14px;
  box-shadow: 0 24px 46px -28px rgba(0, 0, 0, .95);
  transition: transform .5s cubic-bezier(.2, .6, .2, 1);
}
.shot-grid .box:hover img { transform: translateY(-6px); }
.shot-grid figcaption { margin-top: 14px; font-size: 13.5px; color: var(--muted); }
.shot-grid figcaption b { color: var(--ink); font-weight: 500; }
.shot-grid figcaption a { color: var(--accent); }

@media (max-width: 760px) {
  .sv-scene { grid-template-columns: 1fr; }
  .sv-scene-item, .sv-scene-item:first-child, .sv-scene-item:last-child { grid-column: auto; }
  .shot-grid { grid-template-columns: 1fr; }
  .shot-grid img { height: 300px; }
  .rb-head { flex-direction: column; align-items: flex-start; gap: 16px; }
}

/* ==========================================================================
   深色全幅带（v2.0）：给业务页补横向的大节奏
   四类：大字横滚 .mband / 流程 .flow-band / 数字 .stat-band / 作品墙 .wall-band
   ========================================================================== */

/* ---------- 1. 大字横滚带 ---------- */
.mband {
  position: relative; overflow: hidden;
  padding: clamp(34px, 4.2vw, 62px) 0;
  background:
    radial-gradient(72% 150% at 50% -10%, #17243b 0%, rgba(10, 15, 24, 0) 72%),
    #0a0f18;
  border-block: 1px solid rgba(255, 255, 255, .07);
  color: #fff;
}
.mband::before, .mband::after {
  content: ""; position: absolute; top: 0; bottom: 0;
  width: clamp(48px, 9vw, 150px); z-index: 2; pointer-events: none;
}
.mband::before { left: 0; background: linear-gradient(90deg, #0a0f18 0%, #0a0f18 26%, rgba(10, 15, 24, 0) 100%); }
.mband::after { right: 0; background: linear-gradient(270deg, #0a0f18 0%, #0a0f18 26%, rgba(10, 15, 24, 0) 100%); }

.mband-row { display: flex; width: max-content; }
.mband-row + .mband-row { margin-top: clamp(12px, 1.8vw, 26px); }
.mband-track {
  display: flex; align-items: center;
  gap: clamp(16px, 2vw, 30px);
  padding-right: clamp(16px, 2vw, 30px);
}
.mband-track span {
  font-size: clamp(1.5rem, .88rem + 2.6vw, 2.9rem);
  font-weight: 500; letter-spacing: -.045em; line-height: 1.26; white-space: nowrap;
}
.mband-track i {
  flex: none; width: clamp(5px, .55vw, 8px); height: clamp(5px, .55vw, 8px);
  border-radius: 50%; background: var(--accent);
}
.mband-row--line .mband-track span {
  font-size: clamp(1.2rem, .74rem + 1.85vw, 2.15rem);
  line-height: 1.32;
  color: rgba(255, 255, 255, .26);
}
.mband-row--line .mband-track i { background: rgba(255, 255, 255, .2); }

@media (prefers-reduced-motion: no-preference) {
  .mband-row { animation: mb-run 56s linear infinite; }
  .mband-row--line { animation-direction: reverse; animation-duration: 64s; }
  .mband:hover .mband-row { animation-play-state: paused; }
  @keyframes mb-run { from { transform: translateX(0); } to { transform: translateX(-50%); } }
}

/* ---------- 2. 流程带 ---------- */
.flow-band {
  position: relative; overflow: hidden;
  padding: clamp(52px, 6vw, 92px) 0;
  background: linear-gradient(180deg, #0a0f18 0%, #0d1420 100%);
  color: #fff;
}
.flow-band::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(110% 90% at 78% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(110% 90% at 78% 0%, #000 0%, transparent 72%);
}
.fb-inner {
  position: relative; z-index: 1;
  max-width: 1560px; margin: 0 auto; padding-inline: clamp(20px, 4vw, 56px);
}
.fb-head { display: flex; align-items: center; justify-content: space-between; gap: clamp(20px, 3vw, 40px); flex-wrap: wrap; }
.fb-head h2 {
  margin-top: 12px; font-size: clamp(1.7rem, 1.2rem + 1.6vw, 2.5rem);
  font-weight: 500; letter-spacing: -.04em; line-height: 1.24; color: #fff;
}
.fb-head p { margin-top: 14px; max-width: 44em; font-size: 14.5px; line-height: 1.85; color: rgba(255, 255, 255, .55); }

/* 交付节奏标题右侧的小图：给深色流程带一个具象的落点 */
.fb-side { display: flex; flex-direction: column; align-items: flex-end; gap: 18px; flex: 0 0 auto; }
.fb-figure {
  width: clamp(200px, 26vw, 340px); max-width: 100%; margin: 0;
  border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .04);
}
.fb-figure img { display: block; width: 100%; height: auto; }
@media (max-width: 860px) { .fb-figure { display: none; } }

.fb-rail {
  position: relative; margin-top: clamp(38px, 4.4vw, 62px);
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: clamp(14px, 1.7vw, 26px);
}
.fb-rail::before,
.fb-rail::after {
  content: ""; position: absolute; left: 0; top: 19px; height: 1px; width: 100%;
  transform-origin: left center;
}
.fb-rail::before { background: rgba(255, 255, 255, .15); }
/* 进度线：进入视口后由 JS 加 .is-lit，从左画到右；脚本没跑时保持半亮，不消失 */
.fb-rail::after {
  background: linear-gradient(90deg, #004bc8, #6f9cff);
  transform: scaleX(.12); opacity: .45;
  transition: transform 1.15s cubic-bezier(.2, .6, .2, 1), opacity .6s ease;
}
.fb-rail.is-lit::after { transform: scaleX(1); opacity: 1; will-change: transform; }
@media (prefers-reduced-motion: reduce) {
  .fb-rail::after { transition: none; transform: scaleX(1); opacity: 1; }
}

.fb-step .dot {
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center;
  background: #0b1018; border: 1px solid rgba(255, 255, 255, .34);
  font-size: 13px; color: rgba(255, 255, 255, .82); font-variant-numeric: tabular-nums;
  box-shadow: 0 0 0 4px rgba(11, 16, 24, .9);
  transition: background-color .35s ease, border-color .35s ease, color .35s ease, box-shadow .35s ease;
}
.fb-step:hover .dot {
  background: var(--accent); border-color: var(--accent); color: #fff;
  box-shadow: 0 0 0 6px rgba(0, 75, 200, .22);
}
.fb-step h3 { margin: 22px 0 10px; font-size: 16.5px; font-weight: 500; color: #fff; }
.fb-step p { font-size: 13.8px; line-height: 1.82; color: rgba(255, 255, 255, .52); }
.fb-step .t {
  display: inline-block; margin-top: 14px;
  font-size: 11px; letter-spacing: .1em; color: #7ea6ff;
}
.fb-note {
  margin-top: clamp(30px, 3.4vw, 46px); padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 14px; line-height: 1.85; color: rgba(255, 255, 255, .5); max-width: 78em;
}
.fb-note b { color: #fff; font-weight: 500; }

/* ---------- 3. 数字带 ---------- */
.stat-band { background: #101318; color: #fff; padding: clamp(46px, 5.4vw, 84px) clamp(20px, 4vw, 56px); }
.stat-inner {
  max-width: 1560px; margin: 0 auto;
  display: grid; grid-template-columns: minmax(0, .78fr) minmax(0, 2.1fr);
  gap: clamp(24px, 4vw, 64px); align-items: start;
}
.stat-lead .rb-kicker { color: #7ea6ff; }
.stat-lead h2 {
  margin-top: 12px; font-size: clamp(1.45rem, 1.1rem + 1vw, 1.95rem);
  font-weight: 500; letter-spacing: -.035em; line-height: 1.34; color: #fff;
}
.stat-lead p { margin-top: 12px; font-size: 13.6px; line-height: 1.85; color: rgba(255, 255, 255, .45); }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: clamp(20px, 2.4vw, 34px); }
.stat { position: relative; padding-top: 20px; }
.stat::before {
  content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 1px;
  background: rgba(255, 255, 255, .14);
}
.stat::after {
  content: ""; position: absolute; left: 0; top: 0; width: 50px; height: 1px;
  background: var(--accent);
}
.stat b {
  display: block; font-size: clamp(2.3rem, 1.3rem + 3.2vw, 3.8rem);
  font-weight: 500; letter-spacing: -.055em; line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat b span { font-size: .42em; font-weight: 400; letter-spacing: 0; color: rgba(255, 255, 255, .55); margin-left: 4px; }
.stat em {
  display: block; margin-top: 12px; font-style: normal;
  font-size: 13px; color: rgba(255, 255, 255, .5); line-height: 1.7;
}

/* ---------- 4. 作品墙 ---------- */
.wall-band {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, #101725 0%, #0a0f19 60%, #0d1421 100%);
  color: #fff; padding-top: clamp(44px, 5vw, 72px);
}
.wall-band::before, .wall-band::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: clamp(40px, 8vw, 120px);
  z-index: 2; pointer-events: none;
}
.wall-band::before { left: 0; background: linear-gradient(90deg, #0b1019 0%, rgba(11, 16, 25, 0) 100%); }
.wall-band::after { right: 0; background: linear-gradient(270deg, #0b1019 0%, rgba(11, 16, 25, 0) 100%); }
.wall-head {
  position: relative; z-index: 3;
  max-width: 1560px; margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 56px) clamp(22px, 2.6vw, 34px);
  display: flex; align-items: flex-end; justify-content: space-between; gap: 32px;
}
.wall-head h2 {
  margin-top: 12px; font-size: clamp(1.6rem, 1.15rem + 1.5vw, 2.35rem);
  font-weight: 500; letter-spacing: -.04em; line-height: 1.26; color: #fff;
}
.wall-head p { margin-top: 12px; max-width: 46em; font-size: 14.2px; line-height: 1.85; color: rgba(255, 255, 255, .52); }

.wall-rail { display: flex; align-items: flex-start; width: max-content; padding-bottom: clamp(44px, 5vw, 72px); }
.wall-group { display: flex; gap: clamp(14px, 1.6vw, 22px); padding-right: clamp(14px, 1.6vw, 22px); }
.wall-item { display: block; width: clamp(170px, 14vw, 214px); color: inherit; }
.wall-item .pic {
  display: block; position: relative; overflow: hidden; border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 30px 60px -34px rgba(0, 0, 0, .95);
  transition: transform .5s cubic-bezier(.2, .6, .2, 1), border-color .5s ease;
}
.wall-item img { display: block; width: 100%; height: auto; }
.wall-item:hover .pic { transform: translateY(-8px); border-color: rgba(255, 255, 255, .34); }
.wall-item b { display: block; margin-top: 14px; font-size: 13.5px; font-weight: 500; color: #fff; }
.wall-item span { display: block; margin-top: 4px; font-size: 12px; color: rgba(255, 255, 255, .42); }

@media (prefers-reduced-motion: no-preference) {
  .wall-rail { animation: mb-run 58s linear infinite; }
  .wall-band:hover .wall-rail { animation-play-state: paused; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .stat-inner { grid-template-columns: 1fr; gap: 26px; }
  .fb-rail {
    display: flex; overflow-x: auto; padding-bottom: 8px;
    scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
  }
  .fb-rail::before, .fb-rail::after { display: none; }
  .fb-step { flex: 0 0 min(74%, 280px); scroll-snap-align: start; }
  .fb-step h3 { font-size: 15.5px; }
}
@media (max-width: 760px) {
  .mband-track span { white-space: normal; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 16px; }
  .wall-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .wall-item { width: 152px; }
  .fb-head { flex-direction: column; align-items: flex-start; gap: 14px; }
}

/* ==========================================================================
   动态（列表 / 详情）：内容来自后台「内容管理」，这里只管版式
   ========================================================================== */
.news-list { border-top: 1px solid var(--line); }

.news-item {
  display: grid;
  grid-template-columns: 128px minmax(0, 1fr) 44px;
  gap: clamp(14px, 2.4vw, 34px);
  align-items: start;
  padding: clamp(22px, 2.6vw, 32px) clamp(0px, 1vw, 14px);
  border-bottom: 1px solid var(--line);
  transition: background-color .35s ease, padding-left .35s ease;
}
.news-item:hover { background: var(--soft); padding-left: clamp(8px, 1.6vw, 22px); }

.news-date {
  padding-top: 5px;
  font-size: 13px; color: var(--muted);
  font-variant-numeric: tabular-nums; letter-spacing: .01em;
}
.news-main h2 {
  font-size: clamp(1.12rem, .95rem + .55vw, 1.42rem);
  font-weight: 500; letter-spacing: -.025em; line-height: 1.42;
  transition: color .3s ease;
}
.news-item:hover .news-main h2 { color: var(--accent); }
.news-main p {
  margin-top: 10px; max-width: 62ch;
  font-size: 14.5px; line-height: 1.85; color: #6a6a70;
}
.news-arrow {
  align-self: center; justify-self: end;
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  border: 1px solid var(--line-2); color: #9a9aa2;
  transition: color .3s ease, border-color .3s ease, transform .3s ease, background-color .3s ease;
}
.news-item:hover .news-arrow {
  color: #fff; background: var(--accent); border-color: var(--accent);
  transform: translateX(4px);
}

.news-pager { margin-top: clamp(28px, 3.4vw, 46px); }
.news-pager a, .news-pager span {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 40px; height: 40px; margin-right: 8px; padding: 0 12px;
  border: 1px solid var(--line-2); border-radius: 10px;
  font-size: 14px; color: #4a4a50; font-variant-numeric: tabular-nums;
  transition: border-color .25s ease, color .25s ease;
}
.news-pager a:hover { border-color: var(--accent); color: var(--accent); }
.news-pager .thisclass, .news-pager .current {
  background: var(--ink); border-color: var(--ink); color: #fff;
}

/* 列表 / 详情：单列，不再用两栏的大留白 */
.page-hero--list .page-hero-inner,
.page-hero--article .page-hero-inner {
  grid-template-columns: minmax(0, 1fr);
  min-height: 0;
  padding-top: clamp(30px, 3vw, 46px);
  padding-bottom: clamp(36px, 4vw, 56px);
}
.page-hero--list h1 { font-size: clamp(1.9rem, 1.2rem + 2vw, 2.9rem); }
.page-hero--article h1 {
  max-width: 22ch;
  font-size: clamp(1.75rem, 1.2rem + 2vw, 2.85rem);
  line-height: 1.24; letter-spacing: -.045em;
}
.page-hero--article .lede { max-width: 48ch; }
.article-meta {
  margin-top: 22px; font-size: 13px; color: var(--muted);
  font-variant-numeric: tabular-nums; letter-spacing: .02em;
}
.article-body { max-width: 720px; }
.article-body > h2:first-child { margin-top: 0; }

.article-nav {
  max-width: 720px; margin-top: clamp(38px, 4.4vw, 60px); padding-top: 26px;
  border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px;
}
.article-nav-item {
  padding: 16px 18px; border: 1px solid var(--line); border-radius: 12px;
  font-size: 14.5px; line-height: 1.7;
  transition: border-color .3s ease;
}
.article-nav-item:hover { border-color: var(--line-2); }
.article-nav-item span {
  display: block; margin-bottom: 6px;
  font-size: 11.5px; letter-spacing: .1em; color: var(--muted);
}
.article-nav-item a { color: var(--ink); }
.article-nav-item a:hover { color: var(--accent); }
.article-nav-item--next { text-align: right; }

.article-back { margin-top: 30px; font-size: 14px; }
.article-back a { color: var(--muted); }
.article-back a:hover { color: var(--accent); }

@media (max-width: 760px) {
  .news-item { grid-template-columns: minmax(0, 1fr) 36px; gap: 12px; }
  .news-date { grid-column: 1; padding-top: 0; }
  .news-main { grid-column: 1; }
  .news-arrow { grid-row: 1 / span 2; width: 36px; height: 36px; }
  .news-main p { display: none; }
  .news-item:hover { padding-left: 0; }
  .article-nav-item--next { text-align: left; }
}

/* ==========================================================================
   H5 营销活动服务页：两行 h1 + 五步流程
   ========================================================================== */
.page-hero h1 > span { display: block; }

.sv-flow--5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
/* 五步时步骤说明只在标题里，不需要底部留白 */
.sv-flow--5 .sv-step h3 { margin-bottom: 0; }

@media (max-width: 1180px) {
  .sv-flow--5 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .sv-flow--5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  .sv-flow--5 { grid-template-columns: 1fr; }
}