/* ============================================================
   网站开发建设专题页样式（AeroCore-Child/pages/webdev）
   前缀 wdev- 用于避免与主题样式冲突
   ============================================================ */

.wdev {
  --wdev-primary: #2563EB;
  --wdev-primary-dark: #1E40AF;
  --wdev-primary-light: #EFF4FF;
  --wdev-ink: #0B1B3F;
  --wdev-text: #334155;
  --wdev-muted: #64748B;
  --wdev-bg: #FFFFFF;
  --wdev-bg-soft: #F6F8FC;
  --wdev-line: #E5EAF3;
  --wdev-gold: #D97706;
  --wdev-radius: 14px;
  --wdev-shadow: 0 10px 30px rgba(15, 37, 85, .08);
  --wdev-shadow-lg: 0 20px 50px rgba(15, 37, 85, .14);
  --wdev-container: 1180px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--wdev-text);
  line-height: 1.75;
}

.wdev img, .wdev svg, .wdev video { max-width: 100%; height: auto; }
.wdev a { color: inherit; text-decoration: none; }
.wdev ul { list-style: none; margin: 0; padding: 0; }
.wdev button { font-family: inherit; border: none; cursor: pointer; }
.wdev h1, .wdev h2, .wdev h3 { color: var(--wdev-ink); line-height: 1.35; margin: 0; }
.wdev p { margin: 0; }

.wdev-container { max-width: var(--wdev-container); margin: 0 auto; padding: 0 20px; }
.wdev-section { padding: 72px 0; }
.wdev-section-head { text-align: center; max-width: 720px; margin: 0 auto 44px; }
.wdev-section-head .wdev-eyebrow {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600;
  color: var(--wdev-primary); background: var(--wdev-primary-light); border: 1px solid #D6E4FF;
  padding: 5px 14px; border-radius: 999px; margin-bottom: 14px;
}
.wdev-section-head h2 { font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; letter-spacing: .5px; }
.wdev-section-head h2 em { font-style: normal; color: var(--wdev-primary); }
.wdev-section-head p { color: var(--wdev-muted); margin-top: 12px; font-size: 15px; }

/* ========== Hero ========== */
.wdev-hero {
  position: relative; background: linear-gradient(160deg, #0B1B3F 0%, #12307A 55%, #1D4ED8 100%);
  color: #fff; overflow: hidden; padding: 86px 0 0;
}
.wdev-hero::before {
  content: ""; position: absolute; top: -160px; right: -120px; width: 520px; height: 520px;
  border-radius: 50%; background: radial-gradient(circle, rgba(79, 141, 255, .35), transparent 65%);
}
.wdev-hero::after {
  content: ""; position: absolute; bottom: -220px; left: -140px; width: 560px; height: 560px;
  border-radius: 50%; background: radial-gradient(circle, rgba(37, 99, 235, .4), transparent 65%);
}
.wdev-hero__inner {
  position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr;
  gap: 48px; align-items: center; padding-bottom: 56px;
}
.wdev-hero__badge {
  display: inline-flex; align-items: center; gap: 8px; background: rgba(217, 119, 6, .14);
  border: 1px solid rgba(251, 191, 36, .45); color: #FCD34D; font-size: 13px; font-weight: 600;
  padding: 7px 16px; border-radius: 999px; margin-bottom: 22px;
}
.wdev-hero h1 {
  font-size: clamp(24px, 4.4vw, 46px); color: #fff; font-weight: 800; letter-spacing: .5px;
  line-height: 1.35; overflow-wrap: break-word; word-break: break-all; max-width: 100%;
}
.wdev-hero h1 em {
  font-style: normal; background: linear-gradient(90deg, #7DB0FF, #93C5FD);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; word-break: break-all;
}
.wdev-hero__sub { margin-top: 18px; font-size: clamp(15px, 1.6vw, 17px); color: #C9D8F7; max-width: 560px; }
.wdev-hero__tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.wdev-hero__tags span {
  font-size: 13px; color: #DCE8FF; background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .16); padding: 6px 14px; border-radius: 999px;
}
.wdev-hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.wdev-hero__stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 52px;
  padding: 22px 0 30px; border-top: 1px solid rgba(255, 255, 255, .14);
}
.wdev-hero__stats .wdev-stat b { display: block; font-size: clamp(22px, 2.6vw, 30px); font-weight: 800; color: #fff; }
.wdev-hero__stats .wdev-stat span { font-size: 13px; color: #A9BEE8; }
.wdev-hero__visual { position: relative; z-index: 2; display: flex; justify-content: center; }
.wdev-hero-card {
  width: 100%; max-width: 420px; background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .16); border-radius: 18px; padding: 22px;
  backdrop-filter: blur(6px); box-shadow: 0 30px 60px rgba(2, 10, 40, .4);
}
.wdev-hero-card__head { display: flex; align-items: center; gap: 10px; font-size: 14px; color: #E2ECFF; margin-bottom: 16px; }
.wdev-hero-card__head .wdev-dot { width: 9px; height: 9px; border-radius: 50%; background: #4ADE80; box-shadow: 0 0 0 4px rgba(74, 222, 128, .2); }
.wdev-geo-badge {
  display: flex; align-items: center; gap: 12px;
  background: linear-gradient(135deg, rgba(251, 191, 36, .18), rgba(251, 191, 36, .05));
  border: 1px solid rgba(251, 191, 36, .4); border-radius: 12px; padding: 12px 14px; margin-bottom: 14px;
}
.wdev-geo-badge .wdev-geo-seal {
  width: 46px; height: 46px; border-radius: 50%; background: linear-gradient(135deg, #F59E0B, #D97706);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: #fff;
  box-shadow: 0 4px 12px rgba(217, 119, 6, .4);
}
.wdev-geo-badge b { color: #FDE68A; font-size: 15px; display: block; line-height: 1.4; }
.wdev-geo-badge span { font-size: 12px; color: #FCD9A0; }
.wdev-hero-card__row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.wdev-hero-card__row .wdev-item {
  background: rgba(255, 255, 255, .07); border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 10px; padding: 12px; font-size: 13px; color: #DCE8FF;
}
.wdev-hero-card__row .wdev-item b { display: block; color: #fff; font-size: 13.5px; margin-bottom: 2px; }

/* ========== 按钮 ========== */
.wdev-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 600; padding: 11px 24px; border-radius: 10px;
  transition: all .25s; white-space: nowrap; border: none; cursor: pointer;
}
.wdev-btn--primary { background: var(--wdev-primary); color: #fff; box-shadow: 0 6px 16px rgba(37, 99, 235, .3); }
.wdev-btn--primary:hover { background: var(--wdev-primary-dark); transform: translateY(-2px); box-shadow: 0 10px 22px rgba(37, 99, 235, .4); }
.wdev-btn--outline { border: 1.5px solid #C7D6F7; color: var(--wdev-primary); background: #fff; }
.wdev-btn--outline:hover { background: var(--wdev-primary-light); border-color: var(--wdev-primary); }
.wdev-btn--ghost { border: 1.5px solid rgba(255, 255, 255, .45); color: #fff; background: rgba(255, 255, 255, .08); }
.wdev-btn--ghost:hover { background: rgba(255, 255, 255, .18); }
.wdev-btn--lg { padding: 14px 32px; font-size: 16px; }
.wdev-btn--block { width: 100%; }

/* ========== 服务板块 ========== */
.wdev-services { background: var(--wdev-bg); }
.wdev-service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.wdev-service-card {
  background: #fff; border: 1px solid var(--wdev-line); border-radius: var(--wdev-radius);
  padding: 30px 26px; transition: all .3s; position: relative; overflow: hidden;
}
.wdev-service-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--wdev-primary), #60A5FA); opacity: 0; transition: opacity .3s;
}
.wdev-service-card:hover { transform: translateY(-6px); box-shadow: var(--wdev-shadow-lg); border-color: #C7D6F7; }
.wdev-service-card:hover::before { opacity: 1; }
.wdev-service-ico {
  width: 60px; height: 60px; border-radius: 14px; background: var(--wdev-primary-light);
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px; color: var(--wdev-primary); transition: all .3s;
}
.wdev-service-card:hover .wdev-service-ico { background: var(--wdev-primary); color: #fff; }
.wdev-service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.wdev-service-card .wdev-desc { font-size: 14px; color: var(--wdev-muted); margin-bottom: 16px; }
.wdev-service-card ul li { font-size: 14px; color: var(--wdev-text); padding: 6px 0 6px 22px; position: relative; }
.wdev-service-card ul li::before { content: "✓"; position: absolute; left: 0; top: 6px; color: var(--wdev-primary); font-weight: 700; }
.wdev-service-card .wdev-tag-line {
  display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; padding-top: 14px; border-top: 1px dashed var(--wdev-line);
}
.wdev-service-card .wdev-tag-line span { font-size: 12px; color: var(--wdev-muted); background: var(--wdev-bg-soft); border-radius: 6px; padding: 3px 10px; }
.wdev-service-cta {
  display: inline-flex; align-items: center; gap: 6px; margin-top: 18px;
  font-size: 14px; font-weight: 600; color: var(--wdev-primary);
}
.wdev-service-cta svg { transition: transform .25s; }
.wdev-service-cta:hover svg { transform: translateX(4px); }

/* ========== GEO 板块 ========== */
.wdev-geo { background: linear-gradient(160deg, #0B1B3F, #12307A); color: #fff; position: relative; overflow: hidden; }
.wdev-geo::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, transparent, #F59E0B, transparent); }
.wdev-geo .wdev-section-head h2 { color: #fff; }
.wdev-geo .wdev-section-head p { color: #A9BEE8; }
.wdev-geo .wdev-section-head .wdev-eyebrow--gold { background: rgba(251, 191, 36, .12); border-color: rgba(251, 191, 36, .4); color: #FCD34D; }
.wdev-geo-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.wdev-geo-main {
  grid-column: 1 / -1; display: grid; grid-template-columns: 1.1fr .9fr; gap: 26px;
  background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 16px; padding: 26px; align-items: center;
}
.wdev-geo-main .wdev-geo-intro b { display: flex; align-items: center; gap: 8px; color: #FDE68A; font-size: 17px; margin-bottom: 10px; }
.wdev-geo-main p { font-size: 14px; color: #D4E1F8; margin-bottom: 8px; }
.wdev-geo-main .wdev-geo-points { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.wdev-geo-main .wdev-geo-points span {
  font-size: 12.5px; background: rgba(37, 99, 235, .35); border: 1px solid rgba(96, 165, 250, .4);
  color: #DCE8FF; padding: 5px 12px; border-radius: 999px;
}
.wdev-geo-seal-wrap { display: flex; justify-content: center; }
.wdev-geo-seal-big {
  width: 150px; height: 150px; border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, #FBBF24, #D97706 60%, #B45309);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: #fff; text-align: center; box-shadow: 0 18px 40px rgba(217, 119, 6, .45), inset 0 0 0 6px rgba(255, 255, 255, .18);
  position: relative; animation: wdevSealPulse 3s ease-in-out infinite;
}
.wdev-geo-seal-big::before { content: ""; position: absolute; inset: 10px; border: 2px dashed rgba(255, 255, 255, .55); border-radius: 50%; }
.wdev-geo-seal-big b { font-size: 20px; letter-spacing: 2px; position: relative; }
.wdev-geo-seal-big span { font-size: 11px; position: relative; line-height: 1.5; padding: 0 18px; }
@keyframes wdevSealPulse {
  0%, 100% { box-shadow: 0 18px 40px rgba(217, 119, 6, .45), inset 0 0 0 6px rgba(255, 255, 255, .18); }
  50% { box-shadow: 0 18px 50px rgba(217, 119, 6, .65), inset 0 0 0 8px rgba(255, 255, 255, .25); }
}
.wdev-geo-card { background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .14); border-radius: 14px; padding: 22px; }
.wdev-geo-card b { display: flex; align-items: center; gap: 8px; color: #fff; font-size: 15px; margin-bottom: 12px; }
.wdev-geo-card b svg { color: #93C5FD; }
.wdev-geo-card ul li { font-size: 13.5px; color: #C9D8F7; padding: 5px 0 5px 18px; position: relative; }
.wdev-geo-card ul li::before { content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 6px; border-radius: 50%; background: #60A5FA; }
.wdev-geo-note { grid-column: 1 / -1; text-align: center; font-size: 13px; color: #8FA8D8; margin-top: 6px; }

/* ========== 优势 ========== */
.wdev-advantages { background: var(--wdev-bg-soft); }
.wdev-adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.wdev-adv-card { background: #fff; border: 1px solid var(--wdev-line); border-radius: var(--wdev-radius); padding: 26px; transition: all .3s; }
.wdev-adv-card:hover { transform: translateY(-4px); box-shadow: var(--wdev-shadow); border-color: #C7D6F7; }
.wdev-adv-card .wdev-num { font-size: 26px; font-weight: 800; color: var(--wdev-primary); opacity: .85; line-height: 1; }
.wdev-adv-card h3 { font-size: 17px; margin: 12px 0 8px; }
.wdev-adv-card p { font-size: 13.5px; color: var(--wdev-muted); }

/* ========== 流程 ========== */
.wdev-process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.wdev-process-item { position: relative; background: #fff; border: 1px solid var(--wdev-line); border-radius: var(--wdev-radius); padding: 26px 18px; text-align: center; transition: all .3s; }
.wdev-process-item:hover { transform: translateY(-4px); box-shadow: var(--wdev-shadow); }
.wdev-process-item .wdev-step-ico {
  width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--wdev-primary-light); color: var(--wdev-primary);
  display: flex; align-items: center; justify-content: center;
}
.wdev-process-item h3 { font-size: 16px; margin-bottom: 6px; }
.wdev-process-item p { font-size: 12.5px; color: var(--wdev-muted); }
.wdev-process-item::after { content: "→"; position: absolute; top: 40%; right: -14px; color: #B9C8E8; font-size: 20px; font-weight: 700; z-index: 2; }
.wdev-process-item:last-child::after { display: none; }

/* ========== 案例 ========== */
.wdev-cases { background: var(--wdev-bg); }
.wdev-case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.wdev-case-card { background: #fff; border: 1px solid var(--wdev-line); border-radius: var(--wdev-radius); overflow: hidden; transition: all .3s; }
.wdev-case-card:hover { transform: translateY(-6px); box-shadow: var(--wdev-shadow-lg); }
.wdev-case-thumb { height: 170px; position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.wdev-case-thumb svg { width: 100%; height: 100%; }
.wdev-case-thumb .wdev-type-tag {
  position: absolute; top: 12px; left: 12px; background: rgba(11, 27, 63, .75); color: #fff;
  font-size: 12px; padding: 4px 10px; border-radius: 6px; backdrop-filter: blur(4px);
}
.wdev-case-body { padding: 18px 20px 22px; }
.wdev-case-body h3 { font-size: 16px; margin-bottom: 6px; line-height: 1.5; }
.wdev-case-body .wdev-case-desc { font-size: 13px; color: var(--wdev-muted); margin-bottom: 12px; }
.wdev-case-meta { display: flex; flex-wrap: wrap; gap: 8px; }
.wdev-case-meta span { font-size: 12px; color: var(--wdev-primary); background: var(--wdev-primary-light); padding: 3px 10px; border-radius: 999px; }

/* ========== 文章列表 ========== */
.wdev-articles { background: var(--wdev-bg-soft); }
.wdev-article-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.wdev-article-card {
  background: #fff; border: 1px solid var(--wdev-line); border-radius: var(--wdev-radius);
  padding: 24px; display: flex; flex-direction: column; gap: 12px; transition: all .3s; position: relative;
}
.wdev-article-card:hover { transform: translateY(-4px); box-shadow: var(--wdev-shadow); border-color: #C7D6F7; }
.wdev-article-card .wdev-art-cat {
  display: inline-flex; align-self: flex-start; font-size: 12px; font-weight: 600;
  color: var(--wdev-primary); background: var(--wdev-primary-light);
  border: 1px solid #D6E4FF; padding: 3px 12px; border-radius: 999px;
}
.wdev-article-card h3 { font-size: 17px; line-height: 1.55; transition: color .2s; }
.wdev-article-card:hover h3 { color: var(--wdev-primary); }
.wdev-article-card h3 a { color: inherit; }
.wdev-article-card .wdev-art-excerpt {
  font-size: 13.5px; color: var(--wdev-muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.wdev-article-card .wdev-art-meta {
  display: flex; align-items: center; gap: 14px; font-size: 12px; color: var(--wdev-muted);
  border-top: 1px dashed var(--wdev-line); padding-top: 12px;
}
.wdev-article-card .wdev-art-meta span { display: inline-flex; align-items: center; gap: 5px; }
.wdev-article-card .wdev-art-meta .wdev-read-more { margin-left: auto; color: var(--wdev-primary); font-weight: 600; }
.wdev-articles__empty, .wdev-faq-empty { text-align: center; padding: 40px 20px; color: var(--wdev-muted); background: #fff; border: 1px dashed var(--wdev-line); border-radius: var(--wdev-radius); }
.wdev-more-link { display: flex; justify-content: center; margin-top: 34px; }

/* ========== FAQ ========== */
.wdev-faq { background: var(--wdev-bg); }
.wdev-faq-wrap { max-width: 820px; margin: 0 auto; }
.wdev-faq-item { border: 1px solid var(--wdev-line); border-radius: 12px; margin-bottom: 12px; background: #fff; overflow: hidden; transition: border-color .3s; }
.wdev-faq-item.open { border-color: #C7D6F7; box-shadow: var(--wdev-shadow); }
.wdev-faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  text-align: left; padding: 18px 22px; font-size: 15.5px; font-weight: 600; color: var(--wdev-ink);
  background: none;
}
.wdev-faq-q .wdev-faq-arrow {
  flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--wdev-primary-light); color: var(--wdev-primary);
  display: flex; align-items: center; justify-content: center; transition: transform .3s;
}
.wdev-faq-item.open .wdev-faq-arrow { transform: rotate(180deg); background: var(--wdev-primary); color: #fff; }
.wdev-faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.wdev-faq-a-inner { padding: 0 22px 20px; font-size: 14.5px; color: var(--wdev-text); }
.wdev-faq-a-inner b { color: var(--wdev-primary); }
.wdev-faq-link { display: inline-block; margin-top: 8px; }
.wdev-faq-link a { color: var(--wdev-primary); font-weight: 600; font-size: 13px; }

/* ========== 联系我们 ========== */
.wdev-contact { background: linear-gradient(160deg, #0B1B3F, #12307A); color: #fff; position: relative; overflow: hidden; }
.wdev-contact::before {
  content: ""; position: absolute; top: -120px; right: -100px; width: 420px; height: 420px;
  border-radius: 50%; background: radial-gradient(circle, rgba(79, 141, 255, .3), transparent 65%);
}
.wdev-contact-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.wdev-contact h2 { color: #fff; font-size: clamp(24px, 3.2vw, 32px); margin-bottom: 14px; }
.wdev-contact .wdev-contact-sub { color: #C9D8F7; font-size: 15px; margin-bottom: 26px; max-width: 460px; }
.wdev-contact-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: 18px; }
.wdev-contact-item .wdev-c-ico {
  width: 44px; height: 44px; border-radius: 12px; background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .16); display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; color: #93C5FD;
}
.wdev-contact-item b { display: block; color: #fff; font-size: 15px; margin-bottom: 2px; }
.wdev-contact-item span { font-size: 13.5px; color: #A9BEE8; }
.wdev-contact-form {
  background: #fff; border-radius: 16px; padding: 28px; color: var(--wdev-text);
  box-shadow: 0 30px 60px rgba(2, 10, 40, .35);
}
.wdev-contact-form h3 { font-size: 19px; margin-bottom: 6px; }
.wdev-contact-form .wdev-form-sub { font-size: 13px; color: var(--wdev-muted); margin-bottom: 18px; }
.wdev-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.wdev-form-group { margin-bottom: 12px; }
.wdev-form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--wdev-ink); margin-bottom: 6px; }
.wdev-form-group input, .wdev-form-group select, .wdev-form-group textarea {
  width: 100%; border: 1.5px solid var(--wdev-line); border-radius: 9px; padding: 11px 14px;
  font-size: 14px; font-family: inherit; color: var(--wdev-text); background: #FBFCFE;
  transition: border-color .2s; outline: none; -webkit-appearance: none; box-sizing: border-box;
}
.wdev-form-group input:focus, .wdev-form-group select:focus, .wdev-form-group textarea:focus { border-color: var(--wdev-primary); background: #fff; }
.wdev-form-group textarea { resize: vertical; min-height: 88px; }
.wdev-form-error-text { color: #dc2626; font-size: 13px; margin-top: 4px; }
.wdev-form-msg { padding: 10px 14px; border-radius: 8px; font-size: 14px; margin-bottom: 14px; }
.wdev-form-msg--success { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.wdev-form-msg--exists { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }
.wdev-form-msg--error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.wdev-form-tip { font-size: 12px; color: var(--wdev-muted); margin-top: 10px; text-align: center; }

/* ========== 回顶按钮 ========== */
.wdev-back-top {
  position: fixed; right: 22px; bottom: 26px; width: 46px; height: 46px; border-radius: 12px;
  background: var(--wdev-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .4); opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s; z-index: 90;
}
.wdev-back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ========== 滚动出现动画 ========== */
.wdev-reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.wdev-reveal.in { opacity: 1; transform: none; }

/* ========== 突破主题包裹：全宽 1:1 效果 ========== */
/* 主题将子页面内容包在 .page-container.child-page > .child-page__body > .child-page__main：
   - .page-container / .child-page 限宽 1200px 并带顶部留白（最高 200px）
   - .child-page__main 有内联的内边距 / 背景 / 圆角
   导致页面被居中限定、深色 Hero 无法铺满全屏。此处解除限制，实现与 index.html 一致的宽屏效果。
   注：.child-page__main 为行内样式，需用 !important 覆盖。 */
.page-container.child-page,
.page-container.child-page .child-page__body,
.page-container.child-page .child-page__main {
  max-width: none !important;
  width: 100% !important;
}
.page-container.child-page {
  padding: 0 !important;
  margin: 0 !important;
}
.page-container.child-page::before,
.page-container.child-page::after {
  display: none !important;
}
.page-container.child-page .child-page__main {
  padding: 0 !important;
  margin: 0 !important;
  border-radius: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
}
/* 顶部为固定的主题导航预留高度（导航 64px，Hero 自带 86px 内边距即可避开） */
.wdev { min-height: 0; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .wdev-service-grid, .wdev-adv-grid, .wdev-case-grid { grid-template-columns: repeat(2, 1fr); }
  .wdev-process-grid { grid-template-columns: repeat(3, 1fr); row-gap: 34px; }
  .wdev-process-item:nth-child(3)::after { display: none; }
  .wdev-geo-main { grid-template-columns: 1fr; }
  .wdev-contact-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .wdev-section { padding: 52px 0; }
  .wdev-section-head { margin-bottom: 32px; }
  .wdev-service-grid, .wdev-adv-grid, .wdev-case-grid, .wdev-article-list, .wdev-geo-grid { grid-template-columns: 1fr; }
  .wdev-process-grid { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .wdev-process-item:nth-child(2)::after, .wdev-process-item:nth-child(4)::after { display: none; }
  .wdev-hero__stats { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .wdev-hero h1 { font-size: 22px; }
  .wdev-hero h1 em { font-size: 21px; }
  .wdev-hero__tags span { font-size: 12px; padding: 5px 11px; }
  .wdev-hero__actions { flex-direction: column; align-items: stretch; width: 100%; }
  .wdev-hero__actions .wdev-btn { width: 100%; flex: none; }
  .wdev-form-row { grid-template-columns: 1fr; }
  .wdev-contact-form { padding: 22px; }
  .wdev-case-thumb { height: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  .wdev *, .wdev *::before, .wdev *::after { animation: none !important; transition: none !important; }
  .wdev-reveal { opacity: 1; transform: none; }
}