/**
 * Tech Template - 科技感风格
 * 赛博朋克、霓虹光效、数字化元素、动态网格
 */

/* ===== 本地字体 ===== */
@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Orbitron-Regular.ttf") format("truetype");
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/Orbitron-Medium.ttf") format("truetype");
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/Orbitron-SemiBold.ttf") format("truetype");
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Orbitron-Bold.ttf") format("truetype");
}

@font-face {
  font-family: "Orbitron";
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url("../fonts/Orbitron-Black.ttf") format("truetype");
}

@font-face {
  font-family: "Rajdhani";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("../fonts/Rajdhani-Light.ttf") format("truetype");
}

@font-face {
  font-family: "Rajdhani";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/Rajdhani-Regular.ttf") format("truetype");
}

@font-face {
  font-family: "Rajdhani";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/Rajdhani-Medium.ttf") format("truetype");
}

@font-face {
  font-family: "Rajdhani";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/Rajdhani-SemiBold.ttf") format("truetype");
}

@font-face {
  font-family: "Rajdhani";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/Rajdhani-Bold.ttf") format("truetype");
}

/* ===== CSS 变量 ===== */
:root {
  /* 科技感配色 */
  --color-black: #0a0a0f;
  --color-dark: #12121a;
  --color-darker: #0d0d14;

  /* 主色调 */
  --primary-color: #00f0ff;

  /* 霓虹色 */
  --neon-cyan: #00f0ff;
  --neon-blue: #0066ff;
  --neon-purple: #7b2cbf;
  --neon-pink: #ff006e;

  /* 光效 */
  --glow-cyan:
    0 0 20px rgba(0, 240, 255, 0.5), 0 0 40px rgba(0, 240, 255, 0.3),
    0 0 60px rgba(0, 240, 255, 0.1);
  --glow-purple:
    0 0 20px rgba(123, 44, 191, 0.5), 0 0 40px rgba(123, 44, 191, 0.3);

  /* 边框和线条 */
  --border-width: 2px;
  --grid-size: 50px;

  /* 过渡 */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

/* ===== 全局样式 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100vh;
}

.tech-body {
  font-family:
    "Orbitron",
    "Rajdhani",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  width: 100%;
  min-height: 100vh;
  position: relative;
  background: var(--color-black);
  color: #ffffff;
}

/* ===== 背景效果 ===== */
.tech-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

/* 网格背景 */
.grid-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: perspective(500px) rotateX(60deg) translateY(0);
  }
  100% {
    transform: perspective(500px) rotateX(60deg) translateY(var(--grid-size));
  }
}

/* 扫描线效果 */
.scan-lines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15),
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  animation: scanLines 8s linear infinite;
}

@keyframes scanLines {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(var(--grid-size));
  }
}

/* 粒子效果 */
.particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  background: var(--neon-cyan);
  border-radius: 50%;
  animation: particleFloat 15s linear infinite;
  opacity: 0;
}

.particle:nth-child(1) {
  left: 10%;
  animation-delay: 0s;
}
.particle:nth-child(2) {
  left: 20%;
  animation-delay: -2s;
}
.particle:nth-child(3) {
  left: 30%;
  animation-delay: -4s;
}
.particle:nth-child(4) {
  left: 40%;
  animation-delay: -6s;
}
.particle:nth-child(5) {
  left: 50%;
  animation-delay: -8s;
}
.particle:nth-child(6) {
  left: 60%;
  animation-delay: -10s;
}
.particle:nth-child(7) {
  left: 70%;
  animation-delay: -12s;
}
.particle:nth-child(8) {
  left: 80%;
  animation-delay: -14s;
}
.particle:nth-child(9) {
  left: 90%;
  animation-delay: -7s;
}
.particle:nth-child(10) {
  left: 15%;
  animation-delay: -3s;
}

@keyframes particleFloat {
  0% {
    top: 100%;
    opacity: 0;
    transform: translateX(0);
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    top: -10%;
    opacity: 0;
    transform: translateX(100px);
  }
}

/* 光晕效果 */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: orbFloat 10s ease-in-out infinite;
}

.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--neon-cyan);
  top: -100px;
  right: -100px;
  animation-delay: 0s;
  display: none;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: var(--neon-purple);
  bottom: -100px;
  left: -100px;
  animation-delay: -5s;
}

@keyframes orbFloat {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(30px, 30px) scale(1.1);
  }
}

/* ===== 主容器 ===== */
.tech-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100vh;
  display: flex;
  background: transparent;
}

/* ===== 左侧装饰区域 ===== */
.tech-decor {
  position: relative;
  flex: 0 0 65%;
  background: linear-gradient(
    135deg,
    rgba(0, 240, 255, 0.05),
    rgba(123, 44, 191, 0.05)
  );
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 60px;
  overflow: hidden;
  border-right: none;
}

/* 系统信息面板 */
.system-panel {
  position: relative;
  background: rgba(0, 0, 0, 0.6);
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 40px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.1);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 240, 255, 0.2);
}

.status-indicator {
  width: 12px;
  height: 12px;
  background: var(--neon-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--neon-cyan);
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.panel-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--neon-cyan);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.panel-content {
  display: flex;
  gap: 30px;
}

.system-info {
  flex: 1;
  overflow: hidden;
}

.info-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 13px;
  height: 40px;
  box-sizing: border-box;
}

.info-label {
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1px;
}

.info-value {
  color: var(--neon-cyan);
  font-weight: 600;
  letter-spacing: 1px;
}

/* 数据流动画 */
.data-stream {
  flex: 0 0 80px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-left: 20px;
  border-left: 1px solid rgba(0, 240, 255, 0.2);
}

.stream-line {
  height: 4px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--neon-cyan),
    transparent
  );
  border-radius: 2px;
  animation: streamFlow 2s ease-in-out infinite;
}

.stream-line:nth-child(1) {
  animation-delay: 0s;
  width: 60%;
}

.stream-line:nth-child(2) {
  animation-delay: 0.3s;
  width: 80%;
}

.stream-line:nth-child(3) {
  animation-delay: 0.6s;
  width: 50%;
}

@keyframes streamFlow {
  0% {
    opacity: 0;
    transform: translateX(-20px);
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translateX(20px);
  }
}

/* 大标题 */
.tech-title {
  margin-bottom: 60px;
}

.main-title {
  font-size: 72px;
  font-weight: 900;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 5px;
  text-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

.sub-title {
  font-size: 24px;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* 代码块 */
.code-block {
  position: absolute;
  bottom: 80px;
  left: 60px;
  right: 60px;
  font-family: "Courier New", monospace;
  font-size: 11px;
  color: rgba(0, 240, 255, 0.4);
  line-height: 1.8;
  user-select: none;
}

.code-line {
  white-space: nowrap;
  overflow: hidden;
  animation: typeCode 10s linear infinite;
}

@keyframes typeCode {
  0%,
  100% {
    opacity: 0.3;
  }
  50% {
    opacity: 0.6;
  }
}

/* 装饰圆环 */
.tech-rings {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.ring {
  position: absolute;
  border: 2px solid rgba(0, 240, 255, 0.1);
  border-radius: 50%;
}

.ring-1 {
  width: 400px;
  height: 400px;
  top: -200px;
  left: -200px;
  animation: ringRotate 30s linear infinite;
}

.ring-2 {
  width: 500px;
  height: 500px;
  top: -250px;
  left: -250px;
  animation: ringRotate 40s linear infinite reverse;
  border-color: rgba(123, 44, 191, 0.1);
}

.ring-3 {
  width: 600px;
  height: 600px;
  top: -300px;
  left: -300px;
  animation: ringRotate 50s linear infinite;
  border-color: rgba(0, 240, 255, 0.05);
}

@keyframes ringRotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ===== 右侧登录区域 ===== */
.tech-login-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: transparent;
}

/* ===== 登录卡片 ===== */
.tech-card {
  position: relative;
  background: rgba(18, 18, 26, 0.9);
  backdrop-filter: blur(20px);
  border: var(--border-width) solid var(--primary-color);
  border-radius: 14px;
  box-shadow: var(--glow-cyan);
  width: 100%;
  max-width: 360px;
  min-height: 400px;
  max-height: 520px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateX(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-card.visible {
  opacity: 1;
  transform: translateX(0);
}

/* 卡片边框动画 */
.tech-card::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(
    45deg,
    var(--primary-color),
    var(--secondary-color),
    var(--primary-color),
    var(--secondary-color)
  );
  background-size: 400% 400%;
  border-radius: 16px;
  z-index: -1;
  animation: borderGlow 8s ease infinite;
  opacity: 0.6;
}

@keyframes borderGlow {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

/* 角落装饰 */
.corner-decoration {
  position: absolute;
  width: 30px;
  height: 30px;
  border: 2px solid var(--primary-color);
  opacity: 0.8;
}

.corner-tl {
  top: 10px;
  left: 10px;
  border-right: none;
  border-bottom: none;
}

.corner-tr {
  top: 10px;
  right: 10px;
  border-left: none;
  border-bottom: none;
}

.corner-bl {
  bottom: 10px;
  left: 10px;
  border-right: none;
  border-top: none;
}

.corner-br {
  bottom: 10px;
  right: 10px;
  border-left: none;
  border-top: none;
}

/* ===== 头部 ===== */
.card-header {
  padding: 20px 20px 16px;
  text-align: center;
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
  position: relative;
  flex-shrink: 0;
}

.logo-container {
  margin-bottom: 10px;
  position: relative;
}

.logo-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--glow-cyan);
  position: relative;
  overflow: hidden;
}

.logo-icon::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent 30%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 70%
  );
  transform: rotate(45deg);
  animation: shine 3s ease-in-out infinite;
}

@keyframes shine {
  0% {
    transform: translateX(-100%) translateY(-100%) rotate(45deg);
  }
  100% {
    transform: translateX(100%) translateY(100%) rotate(45deg);
  }
}

/* SVG 保持固定大小 */
.logo-icon svg {
  width: 22px;
  height: 22px;
  color: #ffffff;
  position: relative;
  z-index: 1;
}

/* 图片使用原始大小，移除容器背景装饰 */
.logo-icon:has(img) {
  width: 44px;
  height: 44px;
  background: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  overflow: visible;
}

.logo-icon:has(img)::before {
  display: none !important;
}

.logo-icon img {
  width: 40px;
  height: 40px;
  display: block;
  position: static;
  object-fit: contain;
}

.site-title {
  font-size: 15px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.site-subtitle {
  font-size: 10px;
  color: rgba(255, 255, 255, 0.5);
  font-weight: 400;
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ===== 表单区域 ===== */
.card-body {
  padding: 20px;
  flex: 1;
  overflow-y: auto;
}

/* 表单样式 */
.login-form {
  margin-top: 0;
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 10px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-label svg {
  color: var(--primary-color);
  width: 12px;
  height: 12px;
}

.input-container {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  height: 38px;
  padding: 0 42px 0 12px;
  font-size: 13px;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(0, 240, 255, 0.2);
  border-radius: 8px;
  transition: all var(--transition-base);
  outline: none;
  font-family: inherit;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.form-input:focus {
  background: rgba(0, 240, 255, 0.05);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.password-toggle {
  position: absolute;
  right: 5px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 240, 255, 0.1);
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 5px;
  cursor: pointer;
  color: var(--primary-color);
  transition: all var(--transition-fast);
}

.password-toggle:hover {
  background: rgba(0, 240, 255, 0.2);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
}

.password-toggle svg {
  width: 14px;
  height: 14px;
}

/* 记住我 */
.form-options {
  margin-bottom: 16px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.checkbox-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox-box {
  width: 16px;
  height: 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(0, 240, 255, 0.3);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.checkbox-input:checked + .checkbox-box {
  background: rgba(0, 240, 255, 0.25);
  border-color: var(--primary-color);
  box-shadow:
    0 0 15px rgba(0, 240, 255, 0.5),
    inset 0 0 10px rgba(0, 240, 255, 0.2);
}

.checkbox-input:checked + .checkbox-box .check-icon {
  opacity: 1;
  transform: scale(1);
  color: #ffffff;
  stroke: #ffffff;
  filter: drop-shadow(0 0 2px rgba(0, 240, 255, 0.8));
}

.check-icon {
  color: #ffffff;
  stroke: #ffffff;
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--transition-fast);
}

.checkbox-text {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
}

/* 提交按钮 */
.submit-button {
  width: 100%;
  height: 40px;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all var(--transition-base);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.4);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.submit-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(255, 255, 255, 0.3) 50%,
    transparent 100%
  );
  transition: left 0.6s ease;
}

.submit-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 240, 255, 0.6);
}

.submit-button:hover::before {
  left: 100%;
}

.submit-button:active {
  transform: translateY(0);
}

.submit-button.submitting {
  opacity: 0.8;
  cursor: not-allowed;
}

.button-icon {
  transition: transform var(--transition-base);
  width: 14px;
  height: 14px;
}

.submit-button:hover .button-icon {
  transform: translateX(2px);
}

/* ===== 底部 ===== */
.card-footer {
  border-top: 1px solid rgba(0, 240, 255, 0.1);
  flex-shrink: 0;
}

.footer-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(0, 240, 255, 0.3) 50%,
    transparent 100%
  );
  margin-bottom: 12px;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 12px 20px 16px;
  flex-wrap: wrap;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: all var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 10px;
  border: 1px solid rgba(0, 240, 255, 0.2);
  border-radius: 5px;
}

.footer-link:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
  background: rgba(0, 240, 255, 0.05);
}

.footer-link svg {
  width: 10px;
  height: 10px;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1024px) {
  .tech-decor {
    flex: 0 0 50%;
    padding: 60px 40px;
  }

  .main-title {
    font-size: 56px;
  }

  .sub-title {
    font-size: 20px;
  }

  .code-block {
    left: 40px;
    right: 40px;
    bottom: 60px;
  }

  .system-panel {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .tech-wrapper {
    flex-direction: column;
    overflow-y: auto;
  }

  .tech-decor {
    flex: none;
    width: 100%;
    min-height: 50vh;
    padding: 40px 30px;
    border-right: none;
    border-bottom: none;
    order: 2;
  }

  .tech-login-area {
    flex: none;
    width: 100%;
    padding: 30px 20px;
    background: linear-gradient(
      135deg,
      rgba(0, 240, 255, 0.05),
      rgba(123, 44, 191, 0.05)
    );
    order: 1;
  }

  .tech-card {
    max-width: 100%;
    height: 500px;
  }

  .card-header {
    padding: 20px 20px 16px;
  }

  .card-body {
    padding: 20px;
  }

  .card-footer {
    padding: 0 20px 16px;
  }

  .site-title {
    font-size: 15px;
  }

  .logo-icon {
    width: 44px;
    height: 44px;
  }

  .form-input,
  .submit-button {
    height: 38px;
  }

  .main-title {
    font-size: 42px;
  }

  .sub-title {
    font-size: 16px;
  }

  .system-panel {
    margin-bottom: 30px;
  }

  .code-block {
    position: relative;
    bottom: auto;
    left: auto;
    right: auto;
    margin-top: 40px;
  }

  .tech-rings {
    display: none;
  }
}

@media (max-width: 480px) {
  html, body {
    height: auto;
  }

  .tech-body {
    height: auto;
  }

  .tech-wrapper {
    display: block;
    height: auto;
    min-height: auto;
  }

  .tech-decor {
    padding: 30px 20px;
    min-height: 40vh;
  }

  .tech-login-area {
    padding: 20px 16px;
  }

  .tech-card {
    height: 520px;
  }

  .card-header {
    padding: 18px 16px 14px;
  }

  .card-body {
    padding: 16px;
  }

  .card-footer {
    padding: 0 16px 14px;
  }

  .site-title {
    font-size: 14px;
  }

  .footer-links {
    flex-direction: column;
    gap: 8px;
    padding: 12px;
  }

  .footer-link {
    justify-content: center;
  }

  .main-title {
    font-size: 32px;
  }

  .sub-title {
    font-size: 14px;
  }

  .system-panel {
    padding: 16px;
  }

  .panel-content {
    flex-direction: column;
    gap: 20px;
  }

  .data-stream {
    padding-left: 0;
    padding-top: 15px;
    border-left: none;
    border-top: 1px solid rgba(0, 240, 255, 0.2);
    flex: none;
  }
}

/* ===== 辅助功能 ===== */
.submit-button:focus-visible,
.form-input:focus-visible,
.footer-link:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* ===== 自定义滚动条 ===== */
.card-body::-webkit-scrollbar {
  width: 4px;
}

.card-body::-webkit-scrollbar-track {
  background: rgba(0, 240, 255, 0.05);
  border-radius: 2px;
}

.card-body::-webkit-scrollbar-thumb {
  background: rgba(0, 240, 255, 0.3);
  border-radius: 2px;
}

.card-body::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 240, 255, 0.5);
}

/* ===== 减少动画 ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== 消息提示 ===== */
.gate-message {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    z-index: 9999;
    min-width: 280px;
    max-width: 400px;
    padding: 14px 18px;
    background: rgba(18, 18, 26, 0.95);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(0, 240, 255, 0.3);
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.gate-message.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.gate-message.success {
    background: rgba(18, 18, 26, 0.95);
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.2);
}

.gate-message.success .message-icon {
    color: #22c55e;
}

.gate-message.error {
    background: rgba(18, 18, 26, 0.95);
    border-color: rgba(239, 68, 68, 0.5);
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.2);
}

.gate-message.error .message-icon {
    color: #ef4444;
}

.gate-message.notice {
    background: rgba(18, 18, 26, 0.95);
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.2);
}

.gate-message.notice .message-icon {
    color: #f59e0b;
}

.message-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.message-content {
    flex: 1;
    font-size: 14px;
    font-weight: 400;
    color: #ffffff;
    line-height: 1.5;
}

.message-close {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    cursor: pointer;
    color: var(--primary-color);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    padding: 2px;
}

.message-close:hover {
    color: #ffffff;
    background: rgba(0, 240, 255, 0.2);
}

@media (max-width: 480px) {
    .gate-message {
        min-width: auto;
        width: calc(100vw - 32px);
        top: 16px;
        max-width: none;
    }
}