* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
}

body {
   background-color: #f0f0f0;
   font-family: "宋体", "SimSun", sans-serif;
   font-size: 12px
   color: #333;
   line-height: 1.3;
   padding: 10px;
   background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="%23f0f0f0"/><path d="M0,0 L100,100 M100,0 L0,100" stroke="%23e0e0e0" stroke-width="1"/></svg>');
}

.container {
   width: 1100px;
   margin: 0 auto;
   background-color: white;
   border: 1px solid #ccc;
   box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.header {
   background-color: #e60012;
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.55) 0%,
         rgba(255, 255, 255, 0.15) 45%,
         rgba(0, 0, 0, 0.05) 100%);

   padding: 8px 15px;
   font-weight: bold;
   color: white;
   text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.4);

   border: 1px solid #c30010;
   border-top: 1px solid rgba(255, 255, 255, 0.45);


   border-radius: 3px;

   box-shadow:
      inset 0px 1px 0px rgba(255, 255, 255, 0.5),
      0 1px 3px rgba(0, 0, 0, 0.25);

   text-align: center;
   border-bottom: 3px solid #ffde00;
}


.header h1 {
   font-size: 36px;
   margin-bottom: 10px;
   text-shadow: 2px 2px 2px rgba(0, 0, 0, 0.3);
}

.header p {
   font-size: 16px;
}

.nav {
   background-color: #4a86e8;
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.8) 0%,
         rgba(255, 255, 255, 0.3) 40%,
         rgba(0, 0, 0, 0.1) 90%,
         rgba(0, 0, 0, 0.05) 100%);
   padding: 8px 15px;
   font-weight: bold;
   color: white;
   text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.4);
   border: 1px solid #3a76d8;
   border-top: 1px solid rgba(255, 255, 255, 0.4);
   border-radius: 4px 4px 2px 2px;
   box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.5);
}

.nav ul {
   display: flex;
   justify-content: center;
   list-style: none;
}

.nav li {
   margin: 0 15px;
}

.nav a {
   color: white;
   text-decoration: none;
   font-weight: bold;
   padding: 6px 12px;

   border-radius: 2px;
   transition: background 0.25s ease, box-shadow 0.25s ease;
}

.nav a:hover {
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.7) 0%,
         rgba(255, 255, 255, 0.25) 40%,
         rgba(0, 0, 0, 0.25) 100%);
}


.content {
   display: flex;
   padding: 15px;
}

.sidebar {
   width: 200px;
   background: linear-gradient(to bottom,
         #fcfcfc 0%,
         #f9f9f9 30%,
         #f0f0f0 100%);
   border: 1px solid #ddd;
   padding: 15px;
   box-shadow: inset 0px 1px 3px rgba(0, 0, 0, 0.05);
}

.sidebar h3 {
   background-color: #4a86e8;
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.8) 0%,
         rgba(255, 255, 255, 0.3) 40%,
         rgba(0, 0, 0, 0.1) 90%,
         rgba(0, 0, 0, 0.05) 100%);
   padding: 8px 15px;
   font-weight: bold;
   color: white;
   text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.4);
   border: 1px solid #3a76d8;
   border-top: 1px solid rgba(255, 255, 255, 0.4);
   border-radius: 4px 4px 2px 2px;
   box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.5);
   margin: 10px 0;
   font-size: 16px;
   text-align: center;
   text-align: center;
   border-bottom: 3px solid #ffde00;
}

.sidebar ul {
   list-style-type: none;
   margin-bottom: 20px;
}

.sidebar li {
   padding: 5px 0;
   border-bottom: 1px dotted #ccc;
}

.sidebar a {
   color: #2e6ab1;
   text-decoration: none;
}

.sidebar a:hover {
   color: #e60012;
   text-decoration: underline;
}

.main {
   flex: 1;
   margin: 0 15px;
}


.section-title {
   background-color: #ff8800;
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.8) 0%,
         rgba(255, 255, 255, 0.3) 40%,
         rgba(255, 120, 0, 0.12) 90%,
         rgba(0, 0, 0, 0.03) 100%);

   padding: 8px 15px;
   font-weight: bold;
   color: white;
   text-shadow: 0px 1px 1px rgba(0, 0, 0, 0.4);

   border: 1px solid #e67300;
   border-top: 1px solid rgba(255, 255, 255, 0.4);

   border-radius: 4px 4px 2px 2px;
   box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.5);
}


.section-content {
   padding: 15px;
}

.welcome {
   background-color: #ffffcc;
   border: 1px dashed #ff9900;
   padding: 15px;
   margin-bottom: 20px;
   text-align: center;
}

.gallery {
   display: flex;
   flex-wrap: wrap;
   gap: 10px;
   margin: 15px 0;
}

.gallery img {
   border: 1px solid #ccc;
   padding: 3px;
   background-color: white;
}

.footer {
   text-align: center;
   padding: 10px;
   font-size: 14px;

   background-color: #4a86e8;
   background-image: linear-gradient(to bottom,
         rgba(255, 255, 255, 0.8) 0%,
         rgba(255, 255, 255, 0.3) 40%,
         rgba(0, 0, 0, 0.1) 90%,
         rgba(0, 0, 0, 0.05) 100%);
   font-weight: bold;
   color: white;
   border: 1px solid #3a76d8;
   border-top: 1px solid rgba(255, 255, 255, 0.4);
   border-radius: 4px 4px 2px 2px;
   box-shadow: inset 0px 1px 0px rgba(255, 255, 255, 0.5);

}

.footer a {
   color: #ffde00;
   text-decoration: none;
}

.footer a:hover {
   text-decoration: underline;
}

.ad {
   background-color: #fff9e6;
   border: 1px solid #ffcc00;
   padding: 10px;
   margin: 10px 0;
   text-align: center;
   font-size: 14px;
}

.marquee {
   background-color: #ffffcc;
   padding: 5px;
   border: 1px dotted #ff9900;
   margin: 10px 0;
   font-weight: bold;
}

.blink {
   animation: blink 1s step-end infinite;
}

@keyframes blink {
   50% {
      opacity: 0;
   }
}

.button {
   display: inline-block;
   background-color: #e60012;
   color: white;
   padding: 5px 15px;
   text-decoration: none;
   border-radius: 3px;
   margin: 5px 0;
}

.button:hover {
   background-color: #c4000f;
}

.divider {
   height: 1px;
   background: linear-gradient(to right, transparent, #ccc, transparent);
   margin: 15px 0;
}

.calendar {
   width: 100%;
   border-collapse: collapse;
   margin: 10px 0;
}

.calendar th,
.calendar td {
   border: 1px solid #ddd;
   padding: 5px;
   text-align: center;
}

.calendar th {
   background-color: #f0f0f0;
}

.calendar .today {
   background-color: #ffebee;
   color: #e60012;
   font-weight: bold;
}

.music-player {
   background-color: #f5f5f5;
   border: 1px solid #ddd;
   padding: 10px;
   margin: 10px 0;
}

.music-player h4 {
   margin-bottom: 10px;
   color: #e60012;
}

.music-list {
   list-style-type: none;
   padding-left: 0;
}

.music-list li {
   padding: 5px 0;
   border-bottom: 1px dotted #ddd;
   cursor: pointer;
}

.music-list li.playing {
   color: #e60012;
   font-weight: bold;
}

/* Progress bar */
.progress-bar {
   width: 100%;
   height: 8px;
   background: #ddd;
   margin: 10px 0;
   cursor: pointer;
}

.progress {
   height: 100%;
   width: 0%;
   background: #e60012;
}

/* Buttons */
.controls {
   display: flex;
   justify-content: center;
   gap: 15px;
   margin-bottom: 10px;
}

.controls button {
   background: #e60012;
   border: none;
   padding: 8px 14px;
   color: white;
   font-size: 16px;
   cursor: pointer;
   border-radius: 4px;
}

.controls button:hover {
   background: #c40010;
}


.qq-zone {
   text-align: center;
   margin: 15px 0;
}

.qq-zone img {
   border: 2px solid #ff9900;
   margin-bottom: 10px;
}

.progress-bar {
   background: #ddd;
   height: 20px;
   margin: 10px 0;
   cursor: pointer;
   position: relative;
}

.progress {
   background: #e60012;
   height: 100%;
   width: 0%;
   transition: width 0.1s;
}

.player-controls {
   display: flex;
   align-items: center;
   gap: 10px;
   margin: 10px 0;
}

.player-controls button {
   background: #2e6ab1;
   color: white;
   border: none;
   padding: 5px 10px;
   cursor: pointer;
   border-radius: 3px;
}

.player-controls button:hover {
   background: #1a4d8c;
}

#time {
   font-size: 12px;
   color: #666;
}

.music-list li {
   cursor: pointer;
   padding: 5px 0;
   border-bottom: 1px dotted #ddd;
   transition: background 0.2s;
}

.music-list li:hover {
   background: #f0f0f0;
}

.music-list li.playing {
   background: #ffebee;
   color: #e60012;
   font-weight: bold;
}

.sidebar {
   width: 200px;
   overflow-x: auto;
}

.calendar {
   width: 100%;
   table-layout: fixed;
}

.calendar th,
.calendar td {
   font-size: 12px;
   padding: 4px;
   word-wrap: break-word;
}

.calendar .today {
   background: #ffcccc;
   border: 1px solid red;
   font-weight: bold;
   color: red;
}