@charset "UTF-8";

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

:root {
  --black: #000000;
  --white: #ffffff;
  --gray-bg: #f5f5f5;
  --gray-text: #666666;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

.container {
  width: 1200px;
  margin: 0 auto;
}

/* ============ Header ============ */
header {
  height: 60px;
  background-color: var(--black);
  color: var(--white);
  display: flex;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-box img {
  height: 40px;
  width: auto;
}

.logo-box span {
  font-weight: 400;
}

.logo-box .software-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* 渠道 logo：由 ../../assets/js/common.js 按 service 插入 */
.logo-box #companyLogo {
  height: 42px;
  width: auto;
  flex: 0 0 auto;
  cursor: pointer;
}

.nav-list {
  display: flex;
  gap: 35px;
  margin-left: 30px;
}

.nav-list li a {
  font-size: 14px;
  color: var(--white);
}

.download-btn-top {
  padding: 6px 16px;
  border: 1px solid var(--white);
  font-size: 14px;
  transition: .2s;
  flex-shrink: 0;
}

.download-btn-top:hover {
  background: var(--white);
  color: var(--black);
}

/* ============ Banner ============ */
.banner {
  background: #f8f8f8;
  padding: 80px 0;
  margin-top: 60px;
}

.banner-wrap {
  display: flex;
  align-items: center;
  gap: 60px;
}

.banner-logo {
  width: 40%;
  text-align: center;
}

.banner-logo img {
  width: 380px;
  height: auto;
}

.banner-text {
  width: 60%;
}

.banner-text h1 {
  font-size: 42px;
  color: var(--black);
  margin-bottom: 12px;
  font-weight: 500;
}

.banner-text .sub-title {
  font-size: 16px;
  color: var(--gray-text);
  margin-bottom: 30px;
}

.sell-point {
  margin-bottom: 40px;
}

.sell-point li {
  font-size: 18px;
  margin-bottom: 16px;
  color: var(--black);
}

.banner-buttons {
  display: flex;
  gap: 20px;
}

.btn-main {
  padding: 14px 76px;
  background: var(--black);
  color: var(--white);
  font-size: 16px;
  font-weight: 500;
}

/* ============ Advantage ============ */
.advantage {
  padding: 80px 0;
  background: var(--white);
}

.module-title {
  text-align: center;
  font-size: 32px;
  margin-bottom: 50px;
  color: var(--black);
  font-weight: 500;
}

.adv-list {
  display: flex;
  gap: 30px;
}

.adv-card {
  flex: 1;
  border: 1px solid var(--black);
  padding: 35px 25px;
}

.adv-card h3 {
  font-size: 22px;
  margin-bottom: 15px;
  font-weight: 500;
}

.adv-card p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--gray-text);
}

/* ============ Function ============ */
.function {
  padding: 80px 0;
  background: var(--gray-bg);
}

.func-wrap {
  display: flex;
  gap: 50px;
  align-items: center;
}

.func-img {
  width: 50%;
}

.mock-software-ui {
  background: #fff;
  border: 1.5px solid #000;
  border-radius: 0;
  padding: 12px 14px 16px;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .08);
}

.mock-titlebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #000;
  padding-bottom: 8px;
  margin-bottom: 14px;
}

.mock-titlebar .title {
  font-size: 14px;
  font-weight: 600;
  color: #000;
  letter-spacing: .3px;
}

.mock-titlebar .window-controls {
  display: flex;
  gap: 8px;
}

.mock-titlebar .window-controls span {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 1px solid #000;
  background: 0 0;
}

.mock-titlebar .window-controls span:nth-child(2) {
  background: #000;
}

.mock-menubar {
  display: flex;
  gap: 18px;
  font-size: 12px;
  color: #000;
  border-bottom: 1px solid #ddd;
  padding-bottom: 6px;
  margin-bottom: 14px;
}

.mock-menubar span {
  opacity: .8;
  cursor: default;
}

.mock-menubar span:hover {
  opacity: 1;
}

.mock-main {
  display: flex;
  gap: 20px;
}

.mock-filelist {
  flex: 2;
}

.mock-filelist .file-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  padding: 5px 0;
  border-bottom: 1px solid #f0f0f0;
  color: #111;
}

.mock-filelist .file-item:last-child {
  border-bottom: none;
}

.mock-filelist .file-item .name {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mock-filelist .file-item .name .icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 1px solid #000;
  background: #f5f5f5;
}

.mock-filelist .file-item .size {
  font-size: 12px;
  color: #555;
}

.mock-infopanel {
  flex: 1.2;
  background: #f8f8f8;
  border: 1px solid #ddd;
  padding: 12px 14px;
}

.mock-infopanel .info-title {
  font-size: 13px;
  font-weight: 600;
  color: #000;
  border-bottom: 1px solid #ccc;
  padding-bottom: 6px;
  margin-bottom: 10px;
}

.mock-infopanel .info-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #222;
  padding: 3px 0;
}

.mock-infopanel .info-row .label {
  opacity: .6;
}

.mock-infopanel .info-row .value {
  font-weight: 500;
}

.mock-progress {
  margin-top: 14px;
  border-top: 1px solid #ddd;
  padding-top: 12px;
}

.mock-progress .progress-bar {
  width: 100%;
  height: 6px;
  background: #eaeaea;
  border: 1px solid #000;
}

.mock-progress .progress-bar .fill {
  width: 68%;
  height: 100%;
  background: #000;
}

.mock-progress .progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #333;
  margin-top: 4px;
}

.func-list {
  width: 50%;
}

.func-list li {
  font-size: 16px;
  line-height: 2;
  margin-bottom: 12px;
  padding-left: 10px;
}

/* ============ FAQ ============ */
.faq {
  padding: 80px 0;
  background: var(--white);
}

.faq .module-title {
  color: var(--black);
}

.faq-list {
  width: 100%;
}

.faq-item {
  border-bottom: 1px solid #ccc;
  padding: 20px 0;
}

.faq-item:first-of-type {
  border-top: 1px solid #ccc;
}

.faq-q {
  font-weight: 700;
  font-size: 17px;
  color: var(--black);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: default;
  padding: 0 4px;
}

.faq-q::after {
  content: "▾";
  font-size: 18px;
  color: var(--black);
  opacity: .6;
  margin-left: 12px;
}

.faq-a {
  color: #1f1f1f;
  font-size: 15px;
  line-height: 1.7;
  padding-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--black);
  margin-top: 4px;
}

/* ============ Download Bottom ============ */
.download-bottom {
  padding: 70px 0;
  background: var(--black);
  color: var(--white);
  text-align: center;
}

.download-bottom img {
  width: 198px;
  height: auto;
  margin-bottom: 30px;
}

.download-bottom h2 {
  font-size: 36px;
  margin-bottom: 15px;
  font-weight: 500;
}

.download-bottom .tip {
  font-size: 16px;
  opacity: .8;
  margin-bottom: 40px;
}

.bottom-buttons {
  display: flex;
  justify-content: center;
  gap: 25px;
  margin-bottom: 20px;
}

.btn-win {
  padding: 16px 40px;
  background: var(--white);
  color: var(--black);
  font-size: 17px;
  font-weight: 700;
}

.btn-win-outline {
  padding: 16px 40px;
  border: 1px solid var(--white);
  font-size: 17px;
  font-weight: 700;
}

.small-desc {
  font-size: 13px;
  opacity: .6;
}

/* ============ Footer ============ */
footer {
  min-height: 50px;
  background: var(--black);
  border-top: 1px solid #333;
  display: flex;
  align-items: center;
  color: #999;
  font-size: 13px;
  padding: 12px 0;
}

.footer-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.footer-wrap #companyInfo {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ============ Responsive ============ */
@media (max-width: 1200px) {
  .container {
    width: 90%;
    max-width: 1200px;
  }

  .footer-wrap {
    width: 90%;
    max-width: 1200px;
  }
}

@media (max-width: 900px) {
  .banner-wrap {
    flex-direction: column;
    gap: 40px;
    text-align: center;
  }

  .banner-logo,
  .banner-text {
    width: 100%;
  }

  .banner-logo img {
    width: 240px;
  }

  .banner-text h1 {
    font-size: 28px;
  }

  .banner-buttons {
    justify-content: center;
  }

  .adv-list {
    flex-direction: column;
  }

  .func-wrap {
    flex-direction: column;
  }

  .func-img,
  .func-list {
    width: 100%;
  }

  .nav-list {
    display: none;
  }

  .module-title {
    font-size: 24px;
  }

  .download-bottom h2 {
    font-size: 24px;
  }

  .bottom-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-wrap {
    flex-direction: column;
    gap: 6px;
    padding: 8px 0;
    text-align: center;
  }

  footer {
    height: auto;
    padding: 12px 0;
  }
}