/* ============================================================
   VPNDK Design System — home.css
   Home page specific styles: flag row, server status,
   feature panels, why-us, section CTA
   ============================================================ */

/* ================= 热门线路旗帜行 ================= */
.flag-row {
  display: flex;
  align-items: center;
  gap: 14px;
  border-top: 1px solid var(--c-line);
  padding-top: 14px;
  margin-top: 4px;
  flex-wrap: wrap;
}

.flag-cap {
  font-size: 12px;
  color: var(--c-dim);
  flex: none;
}

.flag-it {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--c-dim);
  flex: none;
}

.flag-it svg {
  flex: none;
  display: block;
  border-radius: 50%;
}

/* ================= 线路状态段 ================= */
.server-status {
  margin-top: 28px;
  border: 1px solid var(--c-line);
  border-radius: var(--rad-m);
  background: var(--c-panel);
  padding: 16px 18px;
}

.server-status .srv-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.server-status .srv-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
  min-width: 0;
  border: 1px solid transparent;
}

.server-status .srv-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-ok);
  flex: none;
  animation: beat 2.6s ease-in-out infinite;
}

.server-status .srv-flag {
  font-size: 15px;
  line-height: 1;
  flex: none;
}

.server-status .srv-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
  flex: none;
  white-space: nowrap;
}

.server-status .srv-type {
  font-size: 10.5px;
  color: var(--c-dim);
  border: 1px solid var(--c-line);
  border-radius: var(--rad-pill);
  padding: 2px 8px;
  flex: none;
  white-space: nowrap;
}

.server-status .srv-ms {
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--c-acc);
  margin-left: auto;
  flex: none;
  white-space: nowrap;
}

.server-status .srv-bw {
  font-family: var(--ff-mono);
  font-size: 11px;
  color: var(--c-dim);
  flex: none;
  white-space: nowrap;
}

/* ================= 核心卖点区面板 ================= */
.feature-panel h4 {
  margin-bottom: 14px;
}

.panel-lines {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.panel-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
  min-width: 0;
}

.panel-line .pl-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-acc);
  flex: none;
}

.panel-line .pl-name {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--c-ink);
  flex: none;
  white-space: nowrap;
}

.panel-line .pl-bar {
  margin-left: auto;
  width: 80px;
  height: 6px;
  border-radius: 3px;
  background: var(--c-bg);
  overflow: hidden;
  flex: none;
}

.panel-line .pl-bar i {
  display: block;
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--c-acc2), var(--c-acc));
}

.panel-note {
  font-size: 11.5px;
  color: var(--c-dim);
  line-height: 1.6;
  margin-top: 10px;
}

/* 安全条款卡 */
.term-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.term-list li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--c-ink);
  padding: 8px 10px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
}

/* 多设备面板 */
.dev-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.dev-it {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  padding: 12px 6px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
  text-align: center;
}

.dev-it svg {
  color: var(--c-acc);
}

.dev-it span {
  font-size: 11px;
  color: var(--c-dim);
  white-space: nowrap;
}

/* AI 工具面板 */
.ai-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.ai-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
}

.ai-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-ok);
  flex: none;
  animation: beat 2.6s ease-in-out infinite;
}

.ai-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.ai-tag {
  margin-left: auto;
  font-size: 10.5px;
  color: var(--c-acc);
  border: 1px solid var(--tint-acc-bd);
  border-radius: var(--rad-pill);
  padding: 2px 9px;
  flex: none;
  white-space: nowrap;
}

/* 流媒体面板 */
.stream-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.stream-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  border-radius: var(--rad-s);
  background: var(--c-panel2);
}

.stream-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-ink);
}

.stream-yes {
  font-size: 12px;
  color: var(--c-ok);
  font-weight: 700;
}

/* 退款面板 */
.refund-card {
  text-align: center;
  padding: 18px 16px;
  border-radius: var(--rad-m);
  background: var(--c-panel2);
  border: 1px solid var(--tint-acc-bd);
}

.refund-days {
  font-family: var(--ff-mono);
  font-size: 44px;
  font-weight: 700;
  color: var(--c-acc);
  line-height: 1.1;
  margin-bottom: 4px;
}

.refund-days span {
  font-size: 20px;
  font-weight: 400;
}

.refund-desc {
  font-size: 13px;
  color: var(--c-dim);
  margin-bottom: 14px;
}

.refund-points {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.refund-points li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--c-ink);
}

/* ================= 为什么选我们 ================= */
.why-us {
  border-top: 1px solid var(--c-line);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.why-copy {
  min-width: 0;
}

.why-title {
  font-size: clamp(24px, 2.5vw, 32px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 16px;
}

.why-desc {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-dim);
  max-width: 420px;
}

.why-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.why-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--rad-m);
  background: var(--c-panel);
  border: 1px solid var(--c-line);
}

.why-list b {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-acc);
  flex: none;
  white-space: nowrap;
}

.why-list span {
  font-size: 13.5px;
  color: var(--c-dim);
  line-height: 1.6;
}

/* ================= 区块 CTA ================= */
.section-cta {
  margin-top: 28px;
  text-align: center;
}

.section-cta .btn-plain {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* ================= 客户端下载区提示 ================= */
.clients-note {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--c-dim);
}

/* ================= 套餐流量包 ================= */
.traffic-packs {
  margin-top: 32px;
  padding: 22px 26px;
  border-radius: var(--rad-m);
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  text-align: center;
}

.traffic-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 8px;
}

.traffic-list {
  font-family: var(--ff-mono);
  font-size: 15px;
  color: var(--c-acc);
  margin-bottom: 6px;
}

.traffic-note {
  font-size: 12.5px;
  color: var(--c-dim);
}

/* ================= FAQ 列表 ================= */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
}

/* ================= 博客列表内联链接 ================= */
.inline-link {
  color: var(--c-acc);
  border-bottom: 1px solid var(--tint-acc-bd);
  transition: color .15s;
}

.inline-link:hover {
  color: var(--c-ok);
}

/* ================= 响应式 ================= */
@media (max-width: 1120px) {
  .why-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .flag-row {
    gap: 10px;
  }
  .server-status .srv-list {
    grid-template-columns: 1fr;
  }
  .dev-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .why-list li {
    flex-direction: column;
    gap: 4px;
  }
  .why-list b {
    white-space: normal;
  }
}

@media (max-width: 480px) {
  .dev-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .panel-line .pl-bar {
    width: 56px;
  }
}