:root {
  --brand: #ff6a00;
  --brand-dark: #e25e00;
  --brand-soft: #fff3e9;
  --ink: #1d2330;
  --ink-2: #4a5468;
  --ink-3: #8a93a6;
  --line: #e8ebf1;
  --bg-soft: #f7f9fc;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(29, 35, 48, .06);
  --shadow-lg: 0 16px 48px rgba(29, 35, 48, .12);
}
/* 整页板块背景交替区分（显式着色：灰色板块加 .section-soft，白色板块随 body 白底） */
.section-soft { background: var(--bg-soft); }

.eyebrow { display: inline-block; color: var(--brand); font-weight: 700; font-size: .82rem; letter-spacing: .08em; margin-bottom: .6rem; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: .8rem; }
.section-desc { color: var(--ink-2); max-width: 760px; margin-top: 1.5rem; }

/* 核心痛点板块 */
.pain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; }
.pain-card { position: relative; background: #fff; border: 1px solid var(--line); border-left: 4px solid #ff4d2e; border-radius: var(--radius); padding: 1.6rem 1.5rem; box-shadow: var(--shadow); transition: transform .2s ease, box-shadow .2s ease; }
.pain-card:hover { transform: translateY(-4px); box-shadow: 0 12px 26px rgba(255,77,46,.16); }
.pain-head { display: flex; align-items: center; gap: .7rem; }
.pain-no { flex: none; width: 1.6rem; height: 1.6rem; border-radius: 0; background: #ff4d2e; color: #fff; font-weight: 700; font-size: .9rem; line-height: 1; display: inline-flex; align-items: center; justify-content: center; }
.pain-title { font-size: 1.12rem; margin: 0; color: var(--ink); }
.pain-desc { color: var(--ink-2); font-size: .92rem; line-height: 1.75; margin: .9rem 0 0; }
@media (max-width: 576px) { .pain-grid { grid-template-columns: 1fr; } }

/* 方案概述：原有形态 vs 信创云实验室（左右对比） */
.compare-split { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; max-width: 1020px; margin: 0 auto; align-items: stretch; }
.compare-side { display: flex; flex-direction: column; gap: .9rem; padding: 1.1rem; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); }
.compare-side.is-brand { background: var(--brand-soft); border-color: #ffe0c7; }
.compare-item { flex: 1; display: flex; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 1.05rem 1.25rem; transition: transform .2s ease, box-shadow .2s ease; }
.compare-item:hover { border-color: var(--brand); box-shadow: var(--shadow); }
.compare-item p { margin: 0; color: var(--ink-2); font-size: .96rem; line-height: 1.8; }
.compare-side.is-brand .compare-item { border-color: #ffe0c7; }
.compare-side.is-brand .compare-item p { color: var(--ink); }
@media (max-width: 767.98px) { .compare-split { grid-template-columns: 1fr; } }

/* 能力卡片 */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
@media (max-width: 991.98px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575.98px) { .card-grid { grid-template-columns: 1fr; } }
.feature-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem 1.5rem; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; height: 100%; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(255,106,0,.4); }
.feature-icon { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; background: var(--brand-soft); color: var(--brand); font-size: 1.4rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: 1.12rem; margin-bottom: .5rem; }
.feature-card p { color: var(--ink-2); font-size: .94rem; margin: 0; }

/* 信创课程和人才培养路径：文字为主体，递进效果作背景与点缀 */
.edu-path { position: relative; padding: 1.9rem 1.4rem 1.4rem; border-radius: 20px; overflow: hidden;
  background: linear-gradient(118deg, rgba(255,250,246,.96) 0%, rgba(255,245,238,.98) 54%, rgba(255,233,215,.96) 100%);
  border: 1px solid rgba(255,221,196,.7); }
/* 背景点缀：右上角光晕 + 左下→右上的上升斜带 */
.edu-path::before { content: ""; position: absolute; top: 0; right: 0; width: 48%; height: 72%; pointer-events: none;
  background: radial-gradient(closest-side at 100% 0%, rgba(255,106,0,.13), rgba(255,106,0,0)); }
.edu-path::after { content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(to top right, rgba(255,106,0,0) 34%, rgba(255,106,0,.055) 100%); }

.edu-steps { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; margin: 0; padding: 0; list-style: none; }
.edu-step { position: relative; display: flex; flex-direction: column; background: #fff;
  border: 1px solid var(--line); border-radius: 14px; padding: 1.45rem 1.15rem 1.35rem;
  opacity: 0; transform: translateY(20px);
  transition: opacity .55s ease var(--d, 0s), transform .6s cubic-bezier(.22,.75,.25,1) var(--d, 0s),
              border-color .22s ease, box-shadow .28s ease; }
.edu-path.visible .edu-step { opacity: 1; transform: none; }
.edu-path.visible .edu-step:hover { transform: translateY(-3px); border-color: rgba(255,106,0,.42); box-shadow: 0 14px 30px rgba(255,106,0,.12); }
/* 递进点缀①：序号与标题之间的渐变线条，长度随层级递增 */
.edu-bar { display: block; align-self: flex-start; width: var(--w, 100%); height: 3px; margin: 0 0 .7rem;
  border-radius: 999px; background: linear-gradient(90deg, #ffc79b, var(--brand));
  transform: scaleX(0); transform-origin: left center;
  transition: transform .9s cubic-bezier(.22,.75,.25,1) var(--d, 0s), width .4s ease; }
.edu-path.visible .edu-bar { transform: scaleX(1); }
.edu-step:hover .edu-bar { width: 100%; }
/* 递进点缀②：卡片间隙的连接符，只有一行五列时才出现 */
.edu-step:not(:last-child)::after { display: none; }
@media (min-width: 1200px) {
  .edu-step:not(:last-child)::after { content: ""; display: block; position: absolute; top: 2.2rem; right: -0.75rem;
    width: .5rem; height: .5rem; border-top: 1.5px solid rgba(255,106,0,.45); border-right: 1.5px solid rgba(255,106,0,.45);
    transform: rotate(45deg); }
}
/* 递进点缀②：序号徽章由浅到深，悬停转实橙 */
.edu-no { align-self: flex-start; margin-bottom: .65rem; width: 2rem; height: 2rem; display: grid; place-items: center;
  border-radius: 9px; font-size: .8rem; font-weight: 700; color: var(--brand);
  background: var(--brand-soft); border: 1px solid rgba(255,106,0,.18);
  transition: background .22s ease, color .22s ease, border-color .22s ease; }
.edu-step:hover .edu-no { background: var(--brand); border-color: var(--brand); color: #fff; }
.edu-step:last-child .edu-no { background: var(--brand); border-color: var(--brand); color: #fff; }
.edu-title { margin: 0 0 .5rem; font-size: 1.02rem; font-weight: 700; line-height: 1.42; color: var(--ink); }
.edu-desc { margin: 0; font-size: .88rem; line-height: 1.78; color: var(--ink-2); }
/* 窄屏换行时让卡片自动铺满整行，避免右侧留大片空背景 */
@media (max-width: 1199.98px) {
  .edu-steps { grid-template-columns: repeat(6, 1fr); }
  .edu-step { grid-column: span 2; }
  .edu-step:nth-child(n+4) { grid-column: span 3; }
}
@media (max-width: 991.98px) {
  .edu-steps { grid-template-columns: repeat(4, 1fr); }
  .edu-step, .edu-step:nth-child(n+4) { grid-column: span 2; }
  .edu-step:last-child { grid-column: span 4; }
}
@media (max-width: 575.98px) {
  .edu-steps { grid-template-columns: 1fr; }
  .edu-step, .edu-step:nth-child(n+4), .edu-step:last-child { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) { .edu-step { opacity: 1; transform: none; transition: none; } .edu-bar { transition: none; transform: none; } }

/* 方案架构图：线上整图（原 HTML 分层块版已换成图片，2026-09-17） */
.arch-figure { max-width: 1010px; margin-inline: auto; }
.arch-figure img { display: block; width: 100%; height: auto; }

/* 标题组 → 内容块：全站统一间距 */
.mt-block { margin-top: 2rem; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.case-grid .item { position: relative; display: flex; flex-direction: column; height: 100%; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform .2s ease, box-shadow .2s ease; }
.case-grid .item:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.case-grid .item:hover .cover-img-56 > img { transform: translate(-50%, -50%) scale(1.05); }
.case-grid .item .text { display: flex; flex-direction: column; flex: 1 1 auto; padding: 18px 20px; }
.case-grid .item h5 { font-size: 1.05rem; font-weight: 600; margin-bottom: .5rem; color: var(--ink); transition: color .2s linear; }
.case-grid .item:hover h5 { color: var(--brand); }
.case-grid .item p { color: var(--ink-3); font-size: .92rem; line-height: 1.6; margin-bottom: 0; }
.case-grid .item p.max-line-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.case-grid .item span { display: inline-block; margin-top: auto; padding-top: 10px; color: var(--brand); font-size: .85rem; }
.case-grid .item > a { position: absolute; top: 0; right: 0; bottom: 0; left: 0; z-index: 3; }
@media (max-width: 992px) { .case-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 576px) { .case-grid { grid-template-columns: 1fr; } }

/* FAQ - pure JS accordion */
/* 常见问题：左侧推荐卡 + 右侧问答列表（版式对齐 1766） */
.faq-wrap { display: grid; grid-template-columns: 320px 1fr; gap: 2rem; align-items: end; }
.faq-side { display: flex; flex-direction: column; gap: 1rem; }
.related-card { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.15rem 1.2rem; transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease; }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: rgba(255,106,0,.4); }
.related-card .rc-tag { font-size: .72rem; color: var(--brand-dark); font-weight: 600; }
.related-card .rc-title { font-weight: 700; color: var(--ink); margin: .25rem 0 .35rem; font-size: 1.02rem; line-height: 1.5; }
.related-card .rc-desc { color: var(--ink-2); font-size: .9rem; line-height: 1.7; margin: 0; }
.related-card .rc-more { color: var(--brand); font-size: .84rem; font-weight: 600; margin-top: .55rem; display: inline-flex; align-items: center; gap: .25rem; }
.related-card > a { position: absolute; top: 0; right: 0; bottom: 0; left: 0; z-index: 3; }
@media (max-width: 992px) { .faq-wrap { grid-template-columns: 1fr; } }
.accordion-item { border: 1px solid var(--line); border-radius: 12px !important; margin-bottom: .8rem; overflow: hidden; background: #fff; }
.accordion-header { margin: 0 !important; line-height: 1; }
.accordion-item .accordion-button { font-weight: 500; color: var(--ink); background: #fff; box-shadow: none; width: 100%; display: flex; justify-content: space-between; align-items: center; text-align: left; padding: 1rem 1.25rem !important; border: 0; line-height: 1.4; }
.accordion-item.show .accordion-button { background: var(--brand-soft); color: var(--brand-dark); box-shadow: none; }
.accordion-item .accordion-button:focus, .accordion-item .accordion-button:focus-visible, .accordion-item .accordion-button:active { outline: none; box-shadow: none; }
.accordion-item .accordion-button::after { content: ""; flex-shrink: 0; width: 1rem; height: 1rem; margin-left: auto; background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23212529'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e"); background-repeat: no-repeat; background-size: 1rem; transition: transform .2s ease-in-out; }
.accordion-item.show .accordion-button::after { transform: rotate(-180deg); }
.accordion-item:last-child { margin-bottom: 0; }
.accordion-item .accordion-collapse { display: none; }
.accordion-item.show .accordion-collapse { display: block; }
.accordion-item .accordion-body { color: var(--ink-2); padding: .85rem 1.25rem !important; }

.cta { background: linear-gradient(120deg, #ff6a00, #ff8a3d); border-radius: 20px; padding: 3rem 2rem; color: #fff; text-align: center; }
.cta h2 { color: #fff; }
.cta .btn-light { border-radius: 999px; padding: .7rem 1.8rem; font-weight: 600; font-size: .95rem; color: var(--brand-dark); background: #fff; border: none; box-shadow: 0 6px 18px rgba(0,0,0,.12); transition: transform .15s ease, box-shadow .15s ease, background .2s ease; }
.cta .btn-light:hover { background: #fff; color: var(--brand); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.18); }
.cta .btn-ghost { border-radius: 999px; padding: .7rem 1.8rem; font-weight: 600; font-size: .95rem; color: #fff; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.45); backdrop-filter: blur(4px); transition: transform .15s ease, background .2s ease, border-color .2s ease; }
.cta .btn-ghost:hover { background: rgba(255,255,255,.2); border-color: rgba(255,255,255,.8); transform: translateY(-2px); }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }